Modules for expansion services, import and export in MISP http://misp.github.io/misp-modules
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import json
import requests
from requests import HTTPError
import base64
misperrors = {'error': 'Error'}
mispattributes = {'input': ['hostname', 'domain', "ip-src", "ip-dst", "md5", "sha1", "sha256", "sha512"],
'output': ['domain', "ip-src", "ip-dst", "text", "md5", "sha1", "sha256", "sha512", "ssdeep",
"authentihash", "filename"]
}
# possible module-types: 'expansion', 'hover' or both
moduleinfo = {'version': '2', 'author': 'Hannah Ward',
'description': 'Get information from virustotal',
'module-type': ['expansion']}
# config fields that your code expects from the site admin
moduleconfig = ["apikey", "event_limit"]
limit = 5 # Default
comment = '%s: Enriched via VT'
def handler(q=False):
global limit
if q is False:
return False
q = json.loads(q)
key = q["config"]["apikey"]
limit = int(q["config"].get("event_limit", 5))
r = {"results": []}
if "ip-src" in q:
r["results"] += getIP(q["ip-src"], key)
if "ip-dst" in q:
r["results"] += getIP(q["ip-dst"], key)
if "domain" in q:
r["results"] += getDomain(q["domain"], key)
if 'hostname' in q:
r["results"] += getDomain(q['hostname'], key)
if 'md5' in q:
r["results"] += getHash(q['md5'], key)
if 'sha1' in q:
r["results"] += getHash(q['sha1'], key)
if 'sha256' in q:
r["results"] += getHash(q['sha256'], key)
if 'sha512' in q:
r["results"] += getHash(q['sha512'], key)
uniq = []
for res in r["results"]:
if res not in uniq:
uniq.append(res)
r["results"] = uniq
return r
def getHash(hash, key, do_not_recurse=False):
req = requests.get("https://www.virustotal.com/vtapi/v2/file/report",
params={"allinfo": 1, "apikey": key, 'resource': hash})
try:
req.raise_for_status()
req = req.json()
except HTTPError as e:
misperrors['error'] = str(e)
return misperrors
if req["response_code"] == 0:
# Nothing found
return []
return getMoreInfo(req, key)
def getIP(ip, key, do_not_recurse=False):
global limit
toReturn = []
req = requests.get("https://www.virustotal.com/vtapi/v2/ip-address/report",
params={"ip": ip, "apikey": key})
try:
req.raise_for_status()
req = req.json()
except HTTPError as e:
misperrors['error'] = str(e)
return misperrors
if req["response_code"] == 0:
# Nothing found
return []
if "resolutions" in req:
for res in req["resolutions"][:limit]:
toReturn.append({"types": ["domain"], "values": [res["hostname"]], "comment": comment % ip})
# Pivot from here to find all domain info
if not do_not_recurse:
toReturn += getDomain(res["hostname"], key, True)
toReturn += getMoreInfo(req, key)
return toReturn
def getDomain(domain, key, do_not_recurse=False):
global limit
toReturn = []
req = requests.get("https://www.virustotal.com/vtapi/v2/domain/report",
params={"domain": domain, "apikey": key})
try:
req.raise_for_status()
req = req.json()
except HTTPError as e:
misperrors['error'] = str(e)
return misperrors
if req["response_code"] == 0:
# Nothing found
return []
if "resolutions" in req:
for res in req["resolutions"][:limit]:
toReturn.append({"types": ["ip-dst", "ip-src"], "values": [res["ip_address"]], "comment": comment % domain})
# Pivot from here to find all info on IPs
if not do_not_recurse:
toReturn += getIP(res["ip_address"], key, True)
if "subdomains" in req:
for subd in req["subdomains"]:
toReturn.append({"types": ["domain"], "values": [subd], "comment": comment % domain})
toReturn += getMoreInfo(req, key)
return toReturn
def findAll(data, keys):
a = []
if isinstance(data, dict):
for key in data.keys():
if key in keys:
a.append(data[key])
else:
if isinstance(data[key], (dict, list)):
a += findAll(data[key], keys)
if isinstance(data, list):
for i in data:
a += findAll(i, keys)
return a
def getMoreInfo(req, key):
global limit
r = []
# Get all hashes first
hashes = []
hashes = findAll(req, ["md5", "sha1", "sha256", "sha512"])
r.append({"types": ["freetext"], "values": hashes})
for hsh in hashes[:limit]:
# Search VT for some juicy info
try:
data = requests.get("http://www.virustotal.com/vtapi/v2/file/report",
params={"allinfo": 1, "apikey": key, "resource": hsh}
).json()
except:
continue
# Go through each key and check if it exists
if "submission_names" in data:
r.append({'types': ["filename"], "values": data["submission_names"], "comment": comment % hsh})
if "ssdeep" in data:
r.append({'types': ["ssdeep"], "values": [data["ssdeep"]], "comment": comment % hsh})
if "authentihash" in data:
r.append({"types": ["authentihash"], "values": [data["authentihash"]], "comment": comment % hsh})
if "ITW_urls" in data:
r.append({"types": ["url"], "values": data["ITW_urls"], "comment": comment % hsh})
# Get the malware sample
sample = requests.get("https://www.virustotal.com/vtapi/v2/file/download",
params={"hash": hsh, "apikey": key})
malsample = sample.content
# It is possible for VT to not give us any submission names
if "submission_names" in data:
r.append({"types": ["malware-sample"],
"categories": ["Payload delivery"],
"values": data["submission_names"],
"data": str(base64.b64encode(malsample), 'utf-8')
}
)
return r
def introspection():
return mispattributes
def version():
moduleinfo['config'] = moduleconfig
return moduleinfo