From 1a7973bc0623f2b5a01d9185baaf7e7616301b2a Mon Sep 17 00:00:00 2001
From: seamus tuohy
Date: Mon, 26 Dec 2016 14:38:28 -0800
Subject: [PATCH] Add additional email parsing and tests
Added additional attribute parsing and corresponding unit-tests.
E-mail attachment and url extraction added in this commit. This includes
unpacking zipfiles and simple password cracking of encrypted zipfiles.
---
.../modules/import_mod/email_import.py | 123 ++---
tests/EICAR.com | 1 +
tests/EICAR.com.zip | Bin 0 -> 226 bytes
tests/infected.zip | Bin 0 -> 254 bytes
tests/longer_password.zip | Bin 0 -> 254 bytes
tests/short_password.zip | Bin 0 -> 254 bytes
tests/test.py | 467 ++++++++++++------
tests/test_attachment.eml | 167 -------
tests/test_no_attach.eml | 144 ------
9 files changed, 373 insertions(+), 529 deletions(-)
create mode 100644 tests/EICAR.com
create mode 100644 tests/EICAR.com.zip
create mode 100644 tests/infected.zip
create mode 100644 tests/longer_password.zip
create mode 100644 tests/short_password.zip
delete mode 100644 tests/test_attachment.eml
delete mode 100644 tests/test_no_attach.eml
diff --git a/misp_modules/modules/import_mod/email_import.py b/misp_modules/modules/import_mod/email_import.py
index 8949e3c..764e015 100644
--- a/misp_modules/modules/import_mod/email_import.py
+++ b/misp_modules/modules/import_mod/email_import.py
@@ -21,12 +21,10 @@ moduleinfo = {'version': '0.1',
'description': 'Email import module for MISP',
'module-type': ['import']}
-# treat_attachments_as_malware : This treats all attachments as malware. This will zip all attachments and password protect using the password 'infected'
# unzip_attachments : Unzip all zip files that are not password protected
# guess_zip_attachment_passwords : This attempts to unzip all password protected zip files using all the strings found in the email body and subject
# extract_urls : This attempts to extract all URL's from text/html parts of the email
-moduleconfig = ["treat_attachments_as_malware",
- "unzip_attachments",
+moduleconfig = ["unzip_attachments",
"guess_zip_attachment_passwords",
"extract_urls"]
@@ -45,7 +43,7 @@ def handler(q=False):
# Extract all header information
all_headers = ""
for k, v in message.items():
- all_headers += "\n{0}: {1}".format(k, v)
+ all_headers += "{0}: {1}\n".format(k, v)
results.append({"values": all_headers,
"types": ['email-header']})
@@ -77,14 +75,10 @@ def handler(q=False):
from_addr = message.get('From')
results.append({"values": parseaddr(from_addr)[1],
"types": ['email-src'],
- "comment": "From: {0}".format(re.sub('["\']',
- '',
- from_addr))})
- results.append({"values": parseaddr(from_addr)[1],
+ "comment": "From: {0}".format(from_addr)})
+ results.append({"values": parseaddr(from_addr)[0],
"types": ['email-src-display-name'],
- "comment": "From: {0}".format(re.sub('["\']',
- '',
- from_addr))})
+ "comment": "From: {0}".format(from_addr)})
# Return Path
return_path = message.get('Return-Path')
@@ -111,15 +105,11 @@ def handler(q=False):
results.append({"values": parsed_addr[1],
"types": ["email-dst"],
"comment": "{0}: {1}".format(hdr_val,
- re.sub('["\']',
- '',
- addr))})
+ addr)})
results.append({"values": parsed_addr[0],
"types": ["email-dst-display-name"],
"comment": "{0}: {1}".format(hdr_val,
- re.sub('["\']',
- '',
- addr))})
+ addr)})
except AttributeError:
continue
@@ -127,45 +117,45 @@ def handler(q=False):
# Get E-Mail Targets
# Get the addresses that received the email.
# As pulled from the Received header
- received = message.get_all('received')
+ received = message.get_all('Received')
email_targets = set()
- for rec in received:
- try:
- email_check = re.search("for\s(.*@.*);", rec).group(1)
- email_check = email_check.strip(' <>')
- email_targets.add(parseaddr(email_check)[1])
- except (AttributeError):
- continue
- for tar in email_targets:
- results.append({"values": tar,
- "types": ["target-email"],
- "comment": "Extracted from email 'Received' header"})
+ try:
+ for rec in received:
+ try:
+ email_check = re.search("for\s(.*@.*);", rec).group(1)
+ email_check = email_check.strip(' <>')
+ email_targets.add(parseaddr(email_check)[1])
+ except (AttributeError):
+ continue
+ for tar in email_targets:
+ results.append({"values": tar,
+ "types": ["target-email"],
+ "comment": "Extracted from email 'Received' header"})
+ except TypeError:
+ pass # If received header is missing we can't iterate over NoneType
# Check if we were given a configuration
config = request.get("config", {})
# Don't be picky about how the user chooses to say yes to these
acceptable_config_yes = ['y', 'yes', 'true', 't']
- # Do we treat all attachments as malware
- treat_attachments_as_malware = config.get("treat_attachments_as_malware",
- "false")
- if treat_attachments_as_malware.lower() in acceptable_config_yes:
- treat_attachments_as_malware = True
-
# Do we unzip attachments we find?
- unzip = config.get("unzip_attachments", "false")
- if unzip.lower() in acceptable_config_yes:
+ unzip = config.get("unzip_attachments", None)
+ if (unzip is not None and
+ unzip.lower() in acceptable_config_yes):
unzip = True
# Do we try to find passwords for protected zip files?
- zip_pass_crack = config.get("guess_zip_attachment_passwords", "false")
- if zip_pass_crack.lower() in acceptable_config_yes:
+ zip_pass_crack = config.get("guess_zip_attachment_passwords", None)
+ if (zip_pass_crack is not None and
+ zip_pass_crack.lower() in acceptable_config_yes):
zip_pass_crack = True
password_list = None # Only want to collect password list once
# Do we extract URL's from the email.
- extract_urls = config.get("extract_urls", "false")
- if extract_urls.lower() in acceptable_config_yes:
+ extract_urls = config.get("extract_urls", None)
+ if (extract_urls is not None and
+ extract_urls.lower() in acceptable_config_yes):
extract_urls = True
# Get Attachments
@@ -174,41 +164,35 @@ def handler(q=False):
filename = part.get_filename()
if filename is not None:
attachment_data = part.get_payload(decode=True)
+ # Base attachment data is default
+ attachment_files = [{"values": filename,
+ "data" : base64.b64encode(attachment_data).decode()}]
if unzip is True: # Attempt to unzip the attachment and return its files
try:
- attachment_files = get_zipped_contents(filename,
+ attachment_files += get_zipped_contents(filename,
attachment_data)
except RuntimeError: # File is encrypted with a password
if zip_pass_crack is True:
if password_list is None:
password_list = get_zip_passwords(message)
password = test_zip_passwords(attachment_data, password_list)
- # If we don't guess the password just use the zip
- if password is None:
- attachment_files = [{"values": filename,
- "data" : base64.b64encode(attachment_data),
- "comment":"Password could not be cracked from message"}]
+ if password is None: # Inform the analyst that we could not crack password
+ attachment_files[0]['comment'] = "Encrypted Zip: Password could not be cracked from message"
else:
- attachment_files = get_zipped_contents(filename,
+ attachment_files[0]['comment'] = """Original Zipped Attachment with Password {0}""".format(password)
+ attachment_files += get_zipped_contents(filename,
attachment_data,
password=password)
-
except zipfile.BadZipFile: # Attachment is not a zipfile
- attachment_files = [{"values": filename,
- "data" : base64.b64encode(attachment_data)}]
- else:
- attachment_files = [{"values": filename,
- "data" : base64.b64encode(attachment_data)}]
+ attachment_files += [{"values": filename,
+ "data" : base64.b64encode(attachment_data).decode()}]
for attch_item in attachment_files:
- if treat_attachments_as_malware is True: # Malware-samples are encrypted by server
- attch_item["types"] = ['malware-sample']
- else:
- attch_item["types"] = ['attachment']
+ attch_item["types"] = ['attachment']
results.append(attch_item)
else: # Check email body part for urls
if (extract_urls is True and part.get_content_type() == 'text/html'):
url_parser = HTMLURLParser()
- charset = get_charset(i, get_charset(message))
+ charset = get_charset(part, get_charset(message))
url_parser.feed(part.get_payload(decode=True).decode(charset))
urls = url_parser.urls
for url in urls:
@@ -235,11 +219,11 @@ def get_zipped_contents(filename, data, password=None):
unzipped_files = []
if password is not None:
password = str.encode(password) # Byte encoded password required
- for zip_file_name in zf: # Get all files in the zip file
+ for zip_file_name in zf.namelist(): # Get all files in the zip file
+ with zf.open(zip_file_name, mode='rU', pwd=password) as fp:
+ file_data = fp.read()
unzipped_files.append({"values": zip_file_name,
- "data" : base64.b64encode(zf.open(zip_file_name,
- mode='rU',
- pwd=password)), # Any password works when not encrypted
+ "data" : base64.b64encode(file_data).decode(), # Any password works when not encrypted
"comment": "Extracted from {0}".format(filename)})
return unzipped_files
@@ -256,11 +240,12 @@ def test_zip_passwords(data, test_passwords):
"""
with zipfile.ZipFile(io.BytesIO(data), "r") as zf:
+ firstfile = zf.namelist()[0]
for pw_test in test_passwords:
byte_pwd = str.encode(pw_test)
try:
- zf.testzip()
- return byte_pwd
+ zf.open(firstfile, pwd=byte_pwd)
+ return pw_test
except RuntimeError: # Incorrect Password
continue
return None
@@ -315,10 +300,10 @@ def get_zip_passwords(message):
raw_text += subject
# Grab any strings that are marked off by special chars
- marking_chars = [["'", "'"], ['"', '"'], ['[', ']'], ['(', ')']]
+ marking_chars = [["\'", "\'"], ['"', '"'], ['[', ']'], ['(', ')']]
for char_set in marking_chars:
- regex = re.compile("'{0}([^{1}]*){1}'".format(char_set[0],
- char_set[1]))
+ regex = re.compile("""\{0}([^\{1}]*)\{1}""".format(char_set[0],
+ char_set[1]))
marked_off = re.findall(regex, raw_text)
possible_passwords += marked_off
@@ -350,7 +335,7 @@ class HTMLURLParser(HTMLParser):
if urls is None:
self.urls = []
else:
- self.urls = output_list
+ self.urls = urls
def handle_starttag(self, tag, attrs):
if tag == 'a':
self.urls.append(dict(attrs).get('href'))
diff --git a/tests/EICAR.com b/tests/EICAR.com
new file mode 100644
index 0000000..dec3ca5
--- /dev/null
+++ b/tests/EICAR.com
@@ -0,0 +1 @@
+X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-
\ No newline at end of file
diff --git a/tests/EICAR.com.zip b/tests/EICAR.com.zip
new file mode 100644
index 0000000000000000000000000000000000000000..56d8eaa34c507427d67383de7800a1750be472a6
GIT binary patch
literal 226
zcmWIWW@h1H0D+Hn%3del8eX;nvO$=WL59KA)7dddFF8LqG=!6Z`I}`*#
z10%}|W(Ec@5n<}D7@+Fl7!Yj|6A%?)YN8Pkr)lo&tZ81W0yaQ5IKM;
zGt4t6G*~ypH8?~!z?+dtjv1Hr5+GMGFaq(CMi2|hF{}{BpgAPKo0ScukP!&|fpjg1
G!vFwNx-b#|
literal 0
HcmV?d00001
diff --git a/tests/infected.zip b/tests/infected.zip
new file mode 100644
index 0000000000000000000000000000000000000000..8305f1050e1e34719a78db0f645decdd7b423807
GIT binary patch
literal 254
zcmWIWW@h1H;ACK6_*kdxb>gkzWj7$(3WzxwWEfmMogIVplJj#zLpT|jzggx)_*msc
zlvZ#vFtWU0W?%plB}YuNM0b~2-(SFexKd?GAXoPyznm9W&3A9#{$Z<5tDfhBwY#_{
z-ktt)?$oEt)=b`hDU>C@hW~tNu1EKj?DIeG^FLd);PLqYZ*~r3>jS(QndF#pIZXoS
lKn4azAYRf4Vj(${72;4dM+SJavVjyb0--;Uo(bYG002&6O1uC7
literal 0
HcmV?d00001
diff --git a/tests/longer_password.zip b/tests/longer_password.zip
new file mode 100644
index 0000000000000000000000000000000000000000..64ae849c60dfc5ef2c2284b94a0d705cc063c9d2
GIT binary patch
literal 254
zcmWIWW@h1H;ACK6_*kdxb>gkzWj7$(3WzxwWEfmMogIVplJj#zLpT|jzggx)_*msc
zlvZ#vFtWU0W?%ply|Q;pI={xQ%DP;1S#fvV4mPW^wgkzWj7$(3WzxwWEfmMogIVplJj#zLpT|jzggx)_*msc
zlvZ#vFtWU0W?%plmtSq2btltg`Q0;}OY%jnrllM#<`yeGU!%84vSm)7-K_0lj6DIS
z*=#QpmGe%RugF}pU5IU+`>O1w_tFhhnLezm6UsZk`bK~^I|s7$0p5&Ea?H4#CINIH
j0|O%vFKGm^kQ~YiaVVN21H4(;KnfXw&>u+81aTMu^}|LP
literal 0
HcmV?d00001
diff --git a/tests/test.py b/tests/test.py
index 3c068a8..81e7879 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -5,8 +5,11 @@ import unittest
import requests
import base64
import json
-import os
-import urllib
+import io
+import zipfile
+from email.mime.application import MIMEApplication
+from email.mime.text import MIMEText
+from email.mime.multipart import MIMEMultipart
class TestModules(unittest.TestCase):
@@ -53,164 +56,298 @@ class TestModules(unittest.TestCase):
assert("eu-society.com" in values)
def test_email_headers(self):
- with open("tests/test_no_attach.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": None,
+ "guess_zip_attachment_passwords": None,
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail"""
+ message.attach(MIMEText(text, 'plain'))
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ results = response.json()['results']
+ values = [x["values"] for x in results]
+ types = {}
+ for i in results:
+ types.setdefault(i["types"][0], 0)
+ types[i["types"][0]] += 1
+ # Check that there are the appropriate number of items
+ # Check that all the items were correct
+ self.assertEqual(types['target-email'], 1)
+ self.assertIn('test@domain.com', values)
+ self.assertEqual(types['email-dst-display-name'], 4)
+ self.assertIn('Last One', values)
+ self.assertIn('Other Friend', values)
+ self.assertIn('Second Person', values)
+ self.assertIn('Testy Testerson', values)
+ self.assertEqual(types['email-dst'], 4)
+ self.assertIn('test@domain.com', values)
+ self.assertIn('second@domain.com', values)
+ self.assertIn('other@friend.net', values)
+ self.assertIn('last_one@finally.com', values)
+ self.assertEqual(types['email-src-display-name'], 2)
+ self.assertIn("Innocent Person", values)
+ self.assertEqual(types['email-src'], 2)
+ self.assertIn("evil_spoofer@example.com", values)
+ self.assertIn("IgnoreMeImInnocent@sender.com", values)
+ self.assertEqual(types['email-thread-index'], 1)
+ self.assertIn('AQHSR8Us3H3SoaY1oUy9AAwZfMF922bnA9GAgAAi9s4AAGvxAA==', values)
+ self.assertEqual(types['email-message-id'], 1)
+ self.assertIn("<4988EF2D.40804@example.com>", values)
+ self.assertEqual(types['email-subject'], 1)
+ self.assertIn("Example Message", values)
+ self.assertEqual(types['email-header'], 1)
+ self.assertEqual(types['email-x-mailer'], 1)
+ self.assertIn("mlx 5.1.7", values)
+ self.assertEqual(types['email-reply-to'], 1)
+ # The parser inserts a newline that I can't diagnose.
+ # It does not impact analysis since the interface strips it.
+ # But, I'm leaving this test failing
+ self.assertIn("", values)
+ #self.assertIn("\n ", values)
def test_email_attachment_basic(self):
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": None,
+ "guess_zip_attachment_passwords": None,
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail"""
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/EICAR.com", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'com')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()['results']]
+ self.assertIn('EICAR.com', values)
+ for i in response.json()['results']:
+ if i["types"][0] == 'attachment':
+ self.assertEqual(i["values"], "EICAR.com")
+ attch_data = base64.b64decode(i["data"])
+ self.assertEqual(attch_data,
+ b'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+
def test_email_attachment_unpack(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_password_in_body(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- test_email = helper_create_email({"body":"""The password is infected
-
- Best,
- "some random malware researcher who thinks he is slick." """})
-
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(test_email)).encode('utf8')})
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_password_in_body_sentance(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- test_email = helper_create_email({"body":"""The password is infected.
-
- Best,
- "some random malware researcher who thinks he is slick." """})
-
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(test_email)}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_password_in_html_body(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- # TODO Encrypt baseline attachment with "i like pineapples!!!"
- # TODO Figure out how to set HTML body
- test_email = helper_create_email({"body":"""The password is found in this email.
- It is "i like pineapples!!!".
-
- Best,
- "some random malware researcher who thinks he is slick." """})
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_password_in_subject(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_passphraise_in_quotes(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- # TODO Encrypt baseline attachment with "i like pineapples!!!"
- test_email = helper_create_email({"body":"""The password is found in this email.
- It is "i like pineapples!!!".
-
- Best,
- "some random malware researcher who thinks he is slick." """})
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(test_email)}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_as_malware_passphraise_in_brackets(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- # TODO Encrypt baseline attachment with "i like pineapples!!!"
- test_email = helper_create_email({"body":"""The password is found in this email.
- It is [i like pineapples!!!].
-
- Best,
- "some random malware researcher who thinks he is slick." """})
-
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(test_email)}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_email_attachment_unpack_and_as_malware(self):
- raise NotImplementedError("NOT IMPLEMENTED")
- with open("tests/test_attachment.eml", "r") as f:
- data = json.dumps({"module":"email_import",
- "data":str(base64.b64encode(bytes(f.read(), 'utf8')),
- 'utf8')}).encode('utf8')
- response = requests.post(self.url + "query", data=data)
- response.connection.close()
- print(response.json())
-
- def test_virustotal(self):
- # This can't actually be tested without disclosing a private
- # API key. This will attempt to run with a .gitignored keyfile
- # and pass if it can't find one
-
- if not os.path.exists("tests/bodyvirustotal.json"):
- return
-
- with open("tests/bodyvirustotal.json", "r") as f:
- response = requests.post(self.url + "query", data=f.read()).json()
- assert(response)
- response.connection.close()
-
-
-
-def helper_create_email(**conf):
- raise NotImplementedError("NOT IMPLEMENTED")
- attachment_name = conf.get("attachment_name", None)
- subject = conf.get("subject", "Hello friend this is a test email")
- subject = conf.get("subject", "Hello friend this is a test email")
- received = conf.get("Received", ["""Received: via dmail-2008.19 for +INBOX;\n\tTue, 3 Feb 2009 19:29:12 -0600 (CST)""","""Received: from abc.luxsci.com ([10.10.10.10])\n\tby xyz.luxsci.com (8.13.7/8.13.7) with\n\tESMTP id n141TCa7022588\n\tfor ;\n\tTue, 3 Feb 2009 19:29:12 -0600""", """Received: from [192.168.0.3] (verizon.net [44.44.44.44])\n\t(user=test@sender.com mech=PLAIN bits=2)\n\tby abc.luxsci.com (8.13.7/8.13.7) with\n\tESMTP id n141SAfo021855\n\t(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA\n\tbits=256 verify=NOT) for ;\n\tTue, 3 Feb 2009 19:28:10 -0600"""])
- return_path = conf.get("Return-Path", "Return-Path: evil_spoofer@example.com")
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": None,
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail"""
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/EICAR.com.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ self.assertIn('EICAR.com.zip', values)
+ for i in response.json()['results']:
+ if i["values"] == 'EICAR.com.zip':
+ with zipfile.ZipFile(io.BytesIO(base64.b64decode(i["data"])), 'r') as zf:
+ with zf.open("EICAR.com") as ec:
+ attch_data = ec.read()
+ self.assertEqual(attch_data,
+ b'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"])
+ self.assertEqual(attch_data,
+ b'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+ def test_email_attachment_unpack_with_password(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": 'true',
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail"""
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/infected.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ self.assertIn('EICAR.com.zip', values)
+ for i in response.json()['results']:
+ if i["values"] == 'EICAR.com.zip':
+ with zipfile.ZipFile(io.BytesIO(base64.b64decode(i["data"])), 'r') as zf:
+ # Make sure password was set and still in place
+ self.assertRaises(RuntimeError, zf.open, "EICAR.com")
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"])
+ self.assertEqual(attch_data,
+ b'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+ def test_email_attachment_password_in_body(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": 'true',
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a -> STRINGS <- test e-mail"""
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/short_password.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ for i in response.json()['results']:
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"]).decode()
+ self.assertEqual(attch_data,
+ 'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+
+ def test_email_attachment_password_in_body_quotes(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": 'true',
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail
+ the password is "a long password".
+
+ That is all.
+ """
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/longer_password.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ for i in response.json()['results']:
+ # Check that it could be extracted.
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"]).decode()
+ self.assertEqual(attch_data,
+ 'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+
+ def test_email_attachment_password_in_html_body(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": 'true',
+ "extract_urls": None}
+ message = get_base_email()
+ text = """I am a test e-mail
+ the password is NOT "this string".
+
+ That is all.
+ """
+ html = """\
+
+
+
+ Hi!
+ This is the real password?
+ It is "a long password".
+
+
+
+"""
+ message.attach(MIMEText(text, 'plain'))
+ message.attach(MIMEText(html, 'html'))
+ with open("tests/longer_password.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ #print(response.json())
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ for i in response.json()['results']:
+ # Check that it could be extracted.
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"]).decode()
+ self.assertEqual(attch_data,
+ 'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+
+ def test_email_attachment_password_in_subject(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": "true",
+ "guess_zip_attachment_passwords": 'true',
+ "extract_urls": None}
+ message = get_base_email()
+ message.replace_header("Subject", 'I contain the -> "a long password" <- that is the password')
+ text = """I am a test e-mail
+ the password is NOT "this string".
+
+ That is all.
+ """
+ message.attach(MIMEText(text, 'plain'))
+ with open("tests/longer_password.zip", "rb") as fp:
+ eicar_mime = MIMEApplication(fp.read(), 'zip')
+ eicar_mime.add_header('Content-Disposition', 'attachment', filename="EICAR.com.zip")
+ message.attach(eicar_mime)
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn('EICAR.com', values)
+ self.assertIn('I contain the -> "a long password" <- that is the password', values)
+ for i in response.json()['results']:
+ # Check that it could be extracted.
+ if i["values"] == 'EICAR.com':
+ attch_data = base64.b64decode(i["data"]).decode()
+ self.assertEqual(attch_data,
+ 'X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-')
+ def test_email_extract_html_body_urls(self):
+ query = {"module":"email_import"}
+ query["config"] = {"unzip_attachments": None,
+ "guess_zip_attachment_passwords": None,
+ "extract_urls": "true"}
+ message = get_base_email()
+ text = """I am a test e-mail
+ That is all.
+ """
+ html = """\
+
+
+
+ Hi!
+
MISP modules are autonomous modules that can be used for expansion and other services in MISP.
+The modules are written in Python 3 following a simple API interface. The objective is to ease the extensions of MISP functionalities
+without modifying core components. The API is available via a simple REST API which is independent from MISP installation or configuration.
+MISP modules support is included in MISP starting from version 2.4.28.
+For more information: Extending MISP with Python modules slides from MISP training.
+
+
+
+"""
+ message.attach(MIMEText(text, 'plain'))
+ message.attach(MIMEText(html, 'html'))
+ query['data'] = decode_email(message)
+ data = json.dumps(query)
+ response = requests.post(self.url + "query", data=data)
+ #print(response.json())
+ values = [x["values"] for x in response.json()["results"]]
+ self.assertIn("https://github.com/MISP/MISP", values)
+ self.assertIn("https://www.circl.lu/assets/files/misp-training/3.1-MISP-modules.pdf", values)
#def test_domaintools(self):
# query = {'config': {'username': 'test_user', 'api_key': 'test_key'}, 'module': 'domaintools', 'domain': 'domaintools.com'}
@@ -221,6 +358,38 @@ def helper_create_email(**conf):
# response = requests.post(self.url + "query", data=json.dumps(query)).json()
# print(response)
+def decode_email(message):
+ message64 = base64.b64encode(message.as_bytes()).decode()
+ return message64
+
+
+def get_base_email():
+ headers = {"Received":"via dmail-2008.19 for +INBOX; Tue, 3 Feb 2009 19:29:12 -0600 (CST)",
+ "Received":"from abc.luxsci.com ([10.10.10.10]) by xyz.luxsci.com (8.13.7/8.13.7) with ESMTP id n141TCa7022588 for ; Tue, 3 Feb 2009 19:29:12 -0600",
+ "Received":"from [192.168.0.3] (verizon.net [44.44.44.44]) (user=test@sender.com mech=PLAIN bits=2) by abc.luxsci.com (8.13.7/8.13.7) with ESMTP id n141SAfo021855 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 3 Feb 2009 19:28:10 -0600",
+ "X-Received":"by 192.168.0.45 with SMTP id q4mr156123401yw1g.911.1912342394963; Tue, 3 Feb 2009 19:32:15 -0600 (PST)",
+ "Message-ID":"<4988EF2D.40804@example.com>",
+ "Date":"Tue, 03 Feb 2009 20:28:13 -0500",
+ "From":'"Innocent Person" ',
+ "User-Agent":'Thunderbird 2.0.0.19 (Windows/20081209)',
+ "Sender":'"Malicious MailAgent" ',
+ "References":"",
+ "In-Reply-To":"",
+ "Accept-Language":'en-US',
+ "X-Mailer":'mlx 5.1.7',
+ "Return-Path": "evil_spoofer@example.com",
+ "Thread-Topic":'This is a thread.',
+ "Thread-Index":'AQHSR8Us3H3SoaY1oUy9AAwZfMF922bnA9GAgAAi9s4AAGvxAA==',
+ "Content-Language":'en-US',
+ "To":'"Testy Testerson" ',
+ "Cc":'"Second Person" , "Other Friend" , "Last One" ',
+ "Subject":'Example Message',
+ "MIME-Version":'1.0'}
+ msg = MIMEMultipart()
+ for key, val in headers.items():
+ msg.add_header(key, val)
+ return msg
+
if __name__ == '__main__':
unittest.main()
diff --git a/tests/test_attachment.eml b/tests/test_attachment.eml
deleted file mode 100644
index 1b52374..0000000
--- a/tests/test_attachment.eml
+++ /dev/null
@@ -1,167 +0,0 @@
-Received: via dmail-2008.19 for +INBOX;
- Tue, 3 Feb 2009 19:29:12 -0600 (CST)
-Received: from abc.luxsci.com ([10.10.10.10])
- by xyz.luxsci.com (8.13.7/8.13.7) with
- ESMTP id n141TCa7022588
- for ;
- Tue, 3 Feb 2009 19:29:12 -0600
-Return-Path: evil_spoofer@example.com
-Received: from [192.168.0.3] (verizon.net [44.44.44.44])
- (user=test@sender.com mech=PLAIN bits=2)
- by abc.luxsci.com (8.13.7/8.13.7) with
- ESMTP id n141SAfo021855
- (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA
- bits=256 verify=NOT) for ;
- Tue, 3 Feb 2009 19:28:10 -0600
-Message-ID: <4988EF2D.40804@domain.com>
-Date: Tue, 03 Feb 2009 20:28:13 -0500
-From: "Innocent Person"
-User-Agent: Thunderbird 2.0.0.19 (Windows/20081209)
-MIME-Version: 1.0
-To: "Testy Testerson"
-Cc: "Second Person" , "Other Friend" , "Last One"
-Subject: Example Message
-Content-Type: multipart/mixed; boundary=047d7b2edc8d80dac9053f7a3f8d
-
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\ No newline at end of file
diff --git a/tests/test_no_attach.eml b/tests/test_no_attach.eml
deleted file mode 100644
index 584ff86..0000000
--- a/tests/test_no_attach.eml
+++ /dev/null
@@ -1,144 +0,0 @@
-Received: via dmail-2008.19 for +INBOX;
- Tue, 3 Feb 2009 19:29:12 -0600 (CST)
-Received: from abc.luxsci.com ([10.10.10.10])
- by xyz.luxsci.com (8.13.7/8.13.7) with
- ESMTP id n141TCa7022588
- for ;
- Tue, 3 Feb 2009 19:29:12 -0600
-Return-Path: evil_spoofer@example.com
-Received: from [192.168.0.3] (verizon.net [44.44.44.44])
- (user=test@sender.com mech=PLAIN bits=2)
- by abc.luxsci.com (8.13.7/8.13.7) with
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- Tue, 3 Feb 2009 19:28:10 -0600
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-Date: Tue, 03 Feb 2009 20:28:13 -0500
-From: "Innocent Person"
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