mirror of https://github.com/MISP/misp-modules
fix: Some cleanup and output types fixed
- hashes types specified in outputpull/222/head
chrisr3d
parent
35f3a5e43f
commit
179430d69d
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@ -2,201 +2,163 @@ import json
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import requests
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from requests import HTTPError
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import base64
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from collections import defaultdict
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['hostname', 'domain', "ip-src", "ip-dst", "md5", "sha1", "sha256", "sha512"],
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'output': ['domain', "ip-src", "ip-dst", "text", "md5", "sha1", "sha256", "sha512", "ssdeep",
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"authentihash", "filename"]
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}
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"authentihash", "filename"]}
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# possible module-types: 'expansion', 'hover' or both
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moduleinfo = {'version': '2', 'author': 'Hannah Ward',
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moduleinfo = {'version': '3', 'author': 'Hannah Ward',
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'description': 'Get information from virustotal',
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'module-type': ['expansion']}
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# config fields that your code expects from the site admin
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moduleconfig = ["apikey", "event_limit"]
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limit = 5 # Default
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comment = '%s: Enriched via VT'
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comment = '{}: Enriched via VirusTotal'
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hash_types = ["md5", "sha1", "sha256", "sha512"]
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class VirusTotalRequest(object):
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def __init__(self, config):
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self.apikey = config['apikey']
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self.limit = int(config.get('event_limit', 5))
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self.base_url = "https://www.virustotal.com/vtapi/v2/{}/report"
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self.results = defaultdict(set)
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self.to_return = []
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self.input_types_mapping = {'ip-src': self.get_ip, 'ip-dst': self.get_ip,
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'domain': self.get_domain, 'hostname': self.get_domain,
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'md5': self.get_hash, 'sha1': self.get_hash,
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'sha256': self.get_hash, 'sha512': self.get_hash}
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self.output_types_mapping = {'submission_names': 'filename', 'ssdeep': 'ssdeep',
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'authentihash': 'authentihash', 'ITW_urls': 'url'}
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def parse_request(self, attribute_type, attribute_value):
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error = self.input_types_mapping[attribute_type](attribute_value)
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if error is not None:
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return error
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for key, values in self.results.items():
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if isinstance(key, tuple):
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types, comment = key
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self.to_return.append({'types': list(types), 'values': list(values), 'comment': comment})
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else:
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self.to_return.append({'types': key, 'values': list(values)})
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return self.to_return
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def get_domain(self, domain, do_not_recurse=False):
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req = requests.get(self.base_url.format('domain'), params={'domain': domain, 'apikey': self.apikey})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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return str(e)
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if req["response_code"] == 0:
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# Nothing found
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return []
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if "resolutions" in req:
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for res in req["resolutions"][:self.limit]:
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ip_address = res["ip_address"]
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self.results[(("ip-dst", "ip-src"), comment.format(domain))].add(ip_address)
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# Pivot from here to find all domain info
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if not do_not_recurse:
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error = self.get_ip(ip_address, True)
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if error is not None:
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return error
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self.get_more_info(req)
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def get_hash(self, _hash):
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req = requests.get(self.base_url.format('file'), params={'resource': _hash, 'apikey': self.apikey, 'allinfo': 1})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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return str(e)
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if req["response_code"] == 0:
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# Nothing found
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return []
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self.get_more_info(req)
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def get_ip(self, ip, do_not_recurse=False):
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req = requests.get(self.base_url.format('ip-address'), params={'ip': ip, 'apikey': self.apikey})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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return str(e)
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if req["response_code"] == 0:
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# Nothing found
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return []
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if "resolutions" in req:
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for res in req["resolutions"][:self.limit]:
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hostname = res["hostname"]
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self.results[(("domain",), comment.format(ip))].add(hostname)
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# Pivot from here to find all domain info
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if not do_not_recurse:
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error = self.get_domain(hostname, True)
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if error is not None:
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return error
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self.get_more_info(req)
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def find_all(self, data):
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hashes = []
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if isinstance(data, dict):
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for key, value in data.items():
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if key in hash_types:
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print(key)
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self.results[key].add(value)
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hashes.append(value)
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else:
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if isinstance(value, (dict, list)):
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hashes.extend(self.find_all(value))
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elif isinstance(data, list):
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for d in data:
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hashes.extend(self.find_all(d))
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return hashes
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def get_more_info(self, req):
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# Get all hashes first
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hashes = self.find_all(req)
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for h in hashes[:self.limit]:
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# Search VT for some juicy info
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try:
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data = requests.get(self.base_url.format('file'), params={'resource': h, 'apikey': apikey, 'allinfo': 1}).json()
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except Exception:
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continue
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# Go through euch key and check if it exists
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for VT_type, MISP_type in self.output_types_mapping.items():
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if VT_type in data:
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self.results[((MISP_type,), comment.format(h))].add(data[VT_type])
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# Get the malware sample
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sample = requests.get(self.base_url[:-6].format('file/download'), params={'hash': h, 'apikey': apikey})
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malsample = sample.content
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# It is possible for VT to not give us any submission names
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if "submission_names" in data:
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self.to_return.append({"types": ["malware-sample"], "categories": ["Payload delivery"],
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"values": data["submimssion_names"], "data": str(base64.b64encore(malsample), 'utf-8')})
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def handler(q=False):
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global limit
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if q is False:
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return False
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q = json.loads(q)
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key = q["config"]["apikey"]
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limit = int(q["config"].get("event_limit", 5))
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r = {"results": []}
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if "ip-src" in q:
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r["results"] += getIP(q["ip-src"], key)
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if "ip-dst" in q:
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r["results"] += getIP(q["ip-dst"], key)
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if "domain" in q:
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r["results"] += getDomain(q["domain"], key)
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if 'hostname' in q:
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r["results"] += getDomain(q['hostname'], key)
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if 'md5' in q:
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r["results"] += getHash(q['md5'], key)
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if 'sha1' in q:
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r["results"] += getHash(q['sha1'], key)
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if 'sha256' in q:
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r["results"] += getHash(q['sha256'], key)
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if 'sha512' in q:
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r["results"] += getHash(q['sha512'], key)
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uniq = []
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for res in r["results"]:
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if res not in uniq:
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uniq.append(res)
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r["results"] = uniq
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return r
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def getHash(hash, key, do_not_recurse=False):
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req = requests.get("https://www.virustotal.com/vtapi/v2/file/report",
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params={"allinfo": 1, "apikey": key, 'resource': hash})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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misperrors['error'] = str(e)
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if not q.get('config') or not q['config'].get('apikey'):
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misperrors['error']: "A VirusTotal api key is required for this module."
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return misperrors
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if req["response_code"] == 0:
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# Nothing found
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return []
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return getMoreInfo(req, key)
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def getIP(ip, key, do_not_recurse=False):
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global limit
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toReturn = []
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req = requests.get("https://www.virustotal.com/vtapi/v2/ip-address/report",
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params={"ip": ip, "apikey": key})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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misperrors['error'] = str(e)
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del q['module']
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query = VirusTotalRequest(q.pop('config'))
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r = query.parse_request(*list(q.items())[0])
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if isinstance(r, str):
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misperrors['error'] = r
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return misperrors
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return {'results': r}
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if req["response_code"] == 0:
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# Nothing found
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return []
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if "resolutions" in req:
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for res in req["resolutions"][:limit]:
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toReturn.append({"types": ["domain"], "values": [res["hostname"]], "comment": comment % ip})
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# Pivot from here to find all domain info
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if not do_not_recurse:
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toReturn += getDomain(res["hostname"], key, True)
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toReturn += getMoreInfo(req, key)
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return toReturn
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def getDomain(domain, key, do_not_recurse=False):
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global limit
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toReturn = []
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req = requests.get("https://www.virustotal.com/vtapi/v2/domain/report",
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params={"domain": domain, "apikey": key})
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try:
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req.raise_for_status()
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req = req.json()
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except HTTPError as e:
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misperrors['error'] = str(e)
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return misperrors
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if req["response_code"] == 0:
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# Nothing found
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return []
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if "resolutions" in req:
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for res in req["resolutions"][:limit]:
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toReturn.append({"types": ["ip-dst", "ip-src"], "values": [res["ip_address"]], "comment": comment % domain})
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# Pivot from here to find all info on IPs
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if not do_not_recurse:
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toReturn += getIP(res["ip_address"], key, True)
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if "subdomains" in req:
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for subd in req["subdomains"]:
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toReturn.append({"types": ["domain"], "values": [subd], "comment": comment % domain})
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toReturn += getMoreInfo(req, key)
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return toReturn
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def findAll(data, keys):
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a = []
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if isinstance(data, dict):
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for key in data.keys():
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if key in keys:
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a.append(data[key])
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else:
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if isinstance(data[key], (dict, list)):
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a += findAll(data[key], keys)
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if isinstance(data, list):
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for i in data:
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a += findAll(i, keys)
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return a
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def getMoreInfo(req, key):
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global limit
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r = []
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# Get all hashes first
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hashes = []
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hashes = findAll(req, ["md5", "sha1", "sha256", "sha512"])
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r.append({"types": ["freetext"], "values": hashes})
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for hsh in hashes[:limit]:
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# Search VT for some juicy info
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try:
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data = requests.get("http://www.virustotal.com/vtapi/v2/file/report",
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params={"allinfo": 1, "apikey": key, "resource": hsh}
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).json()
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except:
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continue
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# Go through each key and check if it exists
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if "submission_names" in data:
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r.append({'types': ["filename"], "values": data["submission_names"], "comment": comment % hsh})
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if "ssdeep" in data:
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r.append({'types': ["ssdeep"], "values": [data["ssdeep"]], "comment": comment % hsh})
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if "authentihash" in data:
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r.append({"types": ["authentihash"], "values": [data["authentihash"]], "comment": comment % hsh})
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if "ITW_urls" in data:
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r.append({"types": ["url"], "values": data["ITW_urls"], "comment": comment % hsh})
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# Get the malware sample
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sample = requests.get("https://www.virustotal.com/vtapi/v2/file/download",
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params={"hash": hsh, "apikey": key})
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malsample = sample.content
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# It is possible for VT to not give us any submission names
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if "submission_names" in data:
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r.append({"types": ["malware-sample"],
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"categories": ["Payload delivery"],
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"values": data["submission_names"],
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"data": str(base64.b64encode(malsample), 'utf-8')
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}
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)
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return r
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def get_ip(ip, key):
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params = {'ip': ip, 'apikey': key}
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req = requests.get('https://www.virustotal.com/vtapi/v2/ip-address/report', params=params)
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return json.dumps(req.json(), indent=2)
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def introspection():
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return mispattributes
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def version():
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moduleinfo['config'] = moduleconfig
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return moduleinfo
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