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Merge pull request #663 from VirusTotal/feat/google-threat-intel 

feat: Google Threat Intelligence expansion module
pull/664/head
Alexandre Dulaunoy 2024-05-14 06:39:37 +02:00 committed by GitHub
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1
docs/index.md
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@ -38,6 +38,7 @@ For more information: [Extending MISP with Python modules](https://www.circl.lu/
* [EQL](misp_modules/modules/expansion/eql.py) - an expansion module to generate event query language (EQL) from an attribute. [Event Query Language](https://eql.readthedocs.io/en/latest/)
* [Farsight DNSDB Passive DNS](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/farsight_passivedns.py) - a hover and expansion module to expand hostname and IP addresses with passive DNS information.
* [GeoIP](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/geoip_country.py) - a hover and expansion module to get GeoIP information from geolite/maxmind.
* [Google Threat Intelligence] (https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/google_threat_intelligence.py) - An expansion module to have the observable's threat score assessed by Google Threat Intelligence.
* [Greynoise](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/greynoise.py) - a hover to get information from greynoise.
* [hashdd](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/hashdd.py) - a hover module to check file hashes against [hashdd.com](http://www.hashdd.com) including NSLR dataset.
* [hibp](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/hibp.py) - a hover module to lookup against Have I Been Pwned?

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44
documentation/README.md
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@ -260,7 +260,7 @@ Module to expand country codes.
An expansion module to query the CVE search API with a cpe code to get its related vulnerabilities.
- **features**:
>The module takes a cpe attribute as input and queries the CVE search API to get its related vulnerabilities.
>The module takes a cpe attribute as input and queries the CVE search API to get its related vulnerabilities.
>The list of vulnerabilities is then parsed and returned as vulnerability objects.
>
>Users can use their own CVE search API url by defining a value to the custom_API_URL parameter. If no custom API url is given, the default cve.circl.lu api url is used.
@ -640,6 +640,7 @@ Module to query a local copy of Maxmind's Geolite database.
#### [google_search](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/google_search.py)
<img src=logos/google.png height=60>
- **descrption**:
>A hover module to get information about an url using a Google search.
- **features**:
@ -655,6 +656,27 @@ Module to query a local copy of Maxmind's Geolite database.
-----
#### [google_threat_intelligence](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/google_threat_intelligence.py)
<img src=logos/google_threat_intelligence.png height=60>
- **description**:
An expansion module to have the observable's threat score assessed by Google Threat Intelligence.
- **features**:
>The module gives the Google Threat Intelligence assessment including a verdict for the given obsevable. [Example screeshot](https://github.com/MISP/MISP/assets/4747608/e275db2f-bb1e-4413-8cc0-ec3cb05e0414)
]
- **input**:
>'hostname', 'domain', 'ip-src', 'ip-dst', 'md5', 'sha1', 'sha256', 'url'.
- **output**:
>Text fields containing the threat score, the severity, the verdict and the threat label of the observable inspected.
- **references**:
>https://gtidocs.virustotal.com/reference
- **requirements**:
>- pymisp
>- vt
-----
#### [greynoise](https://github.com/MISP/misp-modules/tree/main/misp_modules/modules/expansion/greynoise.py)
<img src=logos/greynoise.png height=60>
@ -745,7 +767,7 @@ Expansion module to fetch the html content from an url and convert it into markd
HYAS Insight integration to MISP provides direct, high volume access to HYAS Insight data. It enables investigators and analysts to understand and defend against cyber adversaries and their infrastructure.
- **features**:
>This Module takes the IP Address, Domain, URL, Email, Phone Number, MD5, SHA1, Sha256, SHA512 MISP Attributes as input to query the HYAS Insight API.
> The results of the HYAS Insight API are than are then returned and parsed into Hyas Insight Objects.
> The results of the HYAS Insight API are than are then returned and parsed into Hyas Insight Objects.
>
>An API key is required to submit queries to the HYAS Insight API.
>
@ -819,9 +841,9 @@ Module to access intelmqs eventdb.
An expansion module to query IP2Location.io to gather more information on a given IP address.
- **features**:
>The module takes an IP address attribute as input and queries the IP2Location.io API.
>Free plan user will get the basic geolocation informaiton, and different subsription plan will get more information on the IP address.
> Refer to [pricing page](https://www.ip2location.io/pricing) for more information on data available for each plan.
>The module takes an IP address attribute as input and queries the IP2Location.io API.
>Free plan user will get the basic geolocation informaiton, and different subsription plan will get more information on the IP address.
> Refer to [pricing page](https://www.ip2location.io/pricing) for more information on data available for each plan.
>
>More information on the responses content is available in the [documentation](https://www.ip2location.io/ip2location-documentation).
- **input**:
@ -857,7 +879,7 @@ Module to query an IP ASN history service (https://github.com/D4-project/IPASN-H
An expansion module to query ipinfo.io to gather more information on a given IP address.
- **features**:
>The module takes an IP address attribute as input and queries the ipinfo.io API.
>The module takes an IP address attribute as input and queries the ipinfo.io API.
>The geolocation information on the IP address is always returned.
>
>Depending on the subscription plan, the API returns different pieces of information then:
@ -883,7 +905,7 @@ An expansion module to query ipinfo.io to gather more information on a given IP
IPQualityScore MISP Expansion Module for IP reputation, Email Validation, Phone Number Validation, Malicious Domain and Malicious URL Scanner.
- **features**:
>This Module takes the IP Address, Domain, URL, Email and Phone Number MISP Attributes as input to query the IPQualityScore API.
> The results of the IPQualityScore API are than returned as IPQS Fraud and Risk Scoring Object.
> The results of the IPQualityScore API are than returned as IPQS Fraud and Risk Scoring Object.
> The object contains a copy of the enriched attribute with added tags presenting the verdict based on fraud score,risk score and other attributes from IPQualityScore.
- **input**:
>A MISP attribute of type IP Address(ip-src, ip-dst), Domain(hostname, domain), URL(url, uri), Email Address(email, email-src, email-dst, target-email, whois-registrant-email) and Phone Number(phone-number, whois-registrant-phone).
@ -1222,7 +1244,7 @@ Module to get information from AlienVault OTX.
An expansion module to query the CIRCL Passive SSH.
- **features**:
>The module queries the Passive SSH service from CIRCL.
>
>
> The module can be used an hover module but also an expansion model to add related MISP objects.
>
- **input**:
@ -1965,7 +1987,7 @@ Module to query a local instance of uwhois (https://github.com/rafiot/uwhoisd).
<img src=logos/whoisfreaks.png height=60>
An expansion module for https://whoisfreaks.com/ that will provide an enriched analysis of the provided domain, including WHOIS and DNS information.
Our Whois service, DNS Lookup API, and SSL analysis, equips organizations with comprehensive threat intelligence and attack surface analysis capabilities for enhanced security.
Our Whois service, DNS Lookup API, and SSL analysis, equips organizations with comprehensive threat intelligence and attack surface analysis capabilities for enhanced security.
Explore our website's product section at https://whoisfreaks.com/ for a wide range of additional services catering to threat intelligence and attack surface analysis needs.
- **features**:
>The module takes a domain as input and queries the Whoisfreaks API with it.
@ -2104,7 +2126,7 @@ Module to process a query on Yeti.
> - https://github.com/sebdraven/pyeti
- **requirements**:
> - pyeti
> - API key
> - API key
-----
@ -2261,7 +2283,7 @@ Simple export of a MISP event to PDF.
> 'Activate_galaxy_description' is a boolean (True or void) to activate the description of event related galaxies.
> 'Activate_related_events' is a boolean (True or void) to activate the description of related event. Be aware this might leak information on confidential events linked to the current event !
> 'Activate_internationalization_fonts' is a boolean (True or void) to activate Noto fonts instead of default fonts (Helvetica). This allows the support of CJK alphabet. Be sure to have followed the procedure to download Noto fonts (~70Mo) in the right place (/tools/pdf_fonts/Noto_TTF), to allow PyMisp to find and use them during PDF generation.
> 'Custom_fonts_path' is a text (path or void) to the TTF file of your choice, to create the PDF with it. Be aware the PDF won't support bold/italic/special style anymore with this option
> 'Custom_fonts_path' is a text (path or void) to the TTF file of your choice, to create the PDF with it. Be aware the PDF won't support bold/italic/special style anymore with this option
- **input**:
>MISP Event
- **output**:

3
misp_modules/modules/expansion/__init__.py
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@ -20,7 +20,8 @@ __all__ = ['cuckoo_submit', 'vmray_submit', 'bgpranking', 'circl_passivedns', 'c
'trustar_enrich', 'recordedfuture', 'html_to_markdown', 'socialscan', 'passive-ssh',
'qintel_qsentry', 'mwdb', 'hashlookup', 'mmdb_lookup', 'ipqs_fraud_and_risk_scoring',
'clamav', 'jinja_template_rendering','hyasinsight', 'variotdbs', 'crowdsec',
'extract_url_components', 'ipinfo', 'whoisfreaks', 'ip2locationio', 'vysion', 'stairwell']
'extract_url_components', 'ipinfo', 'whoisfreaks', 'ip2locationio', 'vysion', 'stairwell',
'google_threat_intelligence']
minimum_required_fields = ('type', 'uuid', 'value')

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misp_modules/modules/expansion/google_threat_intelligence.py Normal file
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@ -0,0 +1,324 @@
#!/usr/local/bin/python
# Copyright © 2024 The Google Threat Intelligence authors. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Google Threat Intelligence MISP expansion module."""
from urllib import parse
import vt
import pymisp
MISP_ATTRIBUTES = {
'input': [
'hostname',
'domain',
'ip-src',
'ip-dst',
'md5',
'sha1',
'sha256',
'url',
],
'format': 'misp_standard',
}
MODULE_INFO = {
'version': '1',
'author': 'Google Threat Intelligence team',
'description': ('An expansion module to have the observable\'s threat'
' score assessed by Google Threat Intelligence.'),
'module-type': ['expansion'],
'config': [
'apikey',
'event_limit',
'proxy_host',
'proxy_port',
'proxy_username',
'proxy_password'
]
}
DEFAULT_RESULTS_LIMIT = 10
class GoogleThreatIntelligenceParser:
"""Main parser class to create the MISP event."""
def __init__(self, client: vt.Client, limit: int) -> None:
self.client = client
self.limit = limit or DEFAULT_RESULTS_LIMIT
self.misp_event = pymisp.MISPEvent()
self.attribute = pymisp.MISPAttribute()
self.parsed_objects = {}
self.input_types_mapping = {
'ip-src': self.parse_ip,
'ip-dst': self.parse_ip,
'domain': self.parse_domain,
'hostname': self.parse_domain,
'md5': self.parse_hash,
'sha1': self.parse_hash,
'sha256': self.parse_hash,
'url': self.parse_url
}
self.proxies = None
def query_api(self, attribute: dict) -> None:
"""Get data from the API and parse it."""
self.attribute.from_dict(**attribute)
self.input_types_mapping[self.attribute.type](self.attribute.value)
def get_results(self) -> dict:
"""Serialize the MISP event."""
event = self.misp_event.to_dict()
results = {
key: event[key] for key in ('Attribute', 'Object') \
if (key in event and event[key])
}
return {'results': results}
def create_gti_report_object(self, report):
"""Create GTI report object."""
report = report.to_dict()
permalink = ('https://www.virustotal.com/gui/'
f"{report['type']}/{report['id']}")
report_object = pymisp.MISPObject('Google-Threat-Intel-report')
report_object.add_attribute('permalink', type='link', value=permalink)
report_object.add_attribute(
'Threat Score', type='text',
value=get_key(
report, 'attributes.gti_assessment.threat_score.value'))
report_object.add_attribute(
'Verdict', type='text',
value=get_key(
report, 'attributes.gti_assessment.verdict.value').replace(
'VERDICT_', ''))
report_object.add_attribute(
'Severity', type='text',
value=get_key(
report, 'attributes.gti_assessment.severity.value').replace(
'SEVERITY_', ''))
report_object.add_attribute(
'Threat Label', type='text',
value=get_key(
report, ('attributes.popular_threat_classification'
'.suggested_threat_label')))
self.misp_event.add_object(**report_object)
return report_object.uuid
def parse_domain(self, domain: str) -> str:
"""Create domain MISP object."""
domain_report = self.client.get_object(f'/domains/{domain}')
# DOMAIN
domain_object = pymisp.MISPObject('domain-ip')
domain_object.add_attribute(
'domain', type='domain', value=domain_report.id)
report_uuid = self.create_gti_report_object(domain_report)
domain_object.add_reference(report_uuid, 'analyzed-with')
self.misp_event.add_object(**domain_object)
return domain_object.uuid
def parse_hash(self, file_hash: str) -> str:
"""Create hash MISP object."""
file_report = self.client.get_object(f'/files/{file_hash}')
file_object = pymisp.MISPObject('file')
for hash_type in ('md5', 'sha1', 'sha256'):
file_object.add_attribute(
hash_type,
**{'type': hash_type, 'value': file_report.get(hash_type)})
report_uuid = self.create_gti_report_object(file_report)
file_object.add_reference(report_uuid, 'analyzed-with')
self.misp_event.add_object(**file_object)
return file_object.uuid
def parse_ip(self, ip: str) -> str:
"""Create ip MISP object."""
ip_report = self.client.get_object(f'/ip_addresses/{ip}')
# IP
ip_object = pymisp.MISPObject('domain-ip')
ip_object.add_attribute('ip', type='ip-dst', value=ip_report.id)
report_uuid = self.create_gti_report_object(ip_report)
ip_object.add_reference(report_uuid, 'analyzed-with')
self.misp_event.add_object(**ip_object)
return ip_object.uuid
def parse_url(self, url: str) -> str:
"""Create URL MISP object."""
url_id = vt.url_id(url)
url_report = self.client.get_object(f'/urls/{url_id}')
url_object = pymisp.MISPObject('url')
url_object.add_attribute('url', type='url', value=url_report.url)
report_uuid = self.create_gti_report_object(url_report)
url_object.add_reference(report_uuid, 'analyzed-with')
self.misp_event.add_object(**url_object)
return url_object.uuid
def get_key(dictionary, key, default_value=''):
"""Get value from nested dictionaries."""
dictionary = dictionary or {}
keys = key.split('.')
field_name = keys.pop()
for k in keys:
if k not in dictionary:
return default_value
dictionary = dictionary[k]
return dictionary.get(field_name, default_value)
def get_proxy_settings(config: dict) -> dict:
"""Returns proxy settings in the requests format or None if not set up."""
proxies = None
host = config.get('proxy_host')
port = config.get('proxy_port')
username = config.get('proxy_username')
password = config.get('proxy_password')
if host:
if not port:
raise KeyError(
('The google_threat_intelligence_proxy_host config is set, '
'please also set the virustotal_proxy_port.'))
parsed = parse.urlparse(host)
if 'http' in parsed.scheme:
scheme = 'http'
else:
scheme = parsed.scheme
netloc = parsed.netloc
host = f'{netloc}:{port}'
if username:
if not password:
raise KeyError(('The google_threat_intelligence_'
' proxy_host config is set, please also'
' set the virustotal_proxy_password.'))
auth = f'{username}:{password}'
host = auth + '@' + host
proxies = {
'http': f'{scheme}://{host}',
'https': f'{scheme}://{host}'
}
return proxies
def dict_handler(request: dict):
"""MISP entry point fo the module."""
if not request.get('config') or not request['config'].get('apikey'):
return {
'error': ('A Google Threat Intelligence api '
'key is required for this module.')
}
if not request.get('attribute'):
return {
'error': ('This module requires an "attribute" field as input,'
' which should contain at least a type, a value and an'
' uuid.')
}
if request['attribute']['type'] not in MISP_ATTRIBUTES['input']:
return {'error': 'Unsupported attribute type.'}
event_limit = request['config'].get('event_limit')
attribute = request['attribute']
try:
proxy_settings = get_proxy_settings(request.get('config'))
client = vt.Client(
request['config']['apikey'],
headers={
'x-tool': 'MISPModuleGTIExpansion',
},
proxy=proxy_settings['http'] if proxy_settings else None)
parser = GoogleThreatIntelligenceParser(
client, int(event_limit) if event_limit else None)
parser.query_api(attribute)
except vt.APIError as ex:
return {'error': ex.message}
except KeyError as ex:
return {'error': str(ex)}
return parser.get_results()
def introspection():
"""Returns the module input attributes required."""
return MISP_ATTRIBUTES
def version():
"""Returns the module metadata."""
return MODULE_INFO
if __name__ == '__main__':
# Testing/debug calls.
import os
api_key = os.getenv('GTI_API_KEY')
# File
request_data = {
'config': {'apikey': api_key},
'attribute': {
'type': 'sha256',
'value': ('ed01ebfbc9eb5bbea545af4d01bf5f10'
'71661840480439c6e5babe8e080e41aa')
}
}
response = dict_handler(request_data)
report_obj = response['results']['Object'][0]
print(report_obj.to_dict())
# URL
request_data = {
'config': {'apikey': api_key},
'attribute': {
'type': 'url',
'value': 'http://47.21.48.182:60813/Mozi.a'
}
}
response = dict_handler(request_data)
report_obj = response['results']['Object'][0]
print(report_obj.to_dict())
# Ip
request_data = {
'config': {'apikey': api_key},
'attribute': {
'type': 'ip-src',
'value': '180.72.148.38'
}
}
response = dict_handler(request_data)
report_obj = response['results']['Object'][0]
print(report_obj.to_dict())
# Domain
request_data = {
'config': {'apikey': api_key},
'attribute': {
'type': 'domain',
'value': 'qexyhuv.com'
}
}
response = dict_handler(request_data)
report_obj = response['results']['Object'][0]
print(report_obj.to_dict())