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fix case id, error if type is not guessed #894

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merged 1 commit into from
Nov 11, 2020
Merged

fix case id, error if type is not guessed #894

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76 changes: 56 additions & 20 deletions responders/VirustotalDownloader/VirustotalDownloader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,23 +11,33 @@
from thehive4py.api import TheHiveApi
from thehive4py.models import Case, CaseObservable


class VirustotalDownloader(Responder):
def __init__(self):
Responder.__init__(self)
self.virustotal_apikey = self.get_param('config.virustotal_apikey', None, "Virustotal API key missing!")
self.thehive_url = self.get_param('config.thehive_url', None, "TheHive URL missing!")
self.thehive_apikey = self.get_param('config.thehive_apikey', None, "TheHive API key missing!")
self.virustotal_apikey = self.get_param(
"config.virustotal_apikey", None, "Virustotal API key missing!"
)
self.thehive_url = self.get_param(
"config.thehive_url", None, "TheHive URL missing!"
)
self.thehive_apikey = self.get_param(
"config.thehive_apikey", None, "TheHive API key missing!"
)

def run(self):
Responder.run(self)

data_type = self.get_param('data.dataType')
case_id = self.get_param('data._parent')
data_type = self.get_param("data.dataType")
case_id = self.get_param("data.case._id")
ioc_types = ["hash"]

if data_type in ioc_types:
url = 'https://www.virustotal.com/vtapi/v2/file/download'
params = {'apikey': self.virustotal_apikey, 'hash': self.get_param('data.data')}
url = "https://www.virustotal.com/vtapi/v2/file/download"
params = {
"apikey": self.virustotal_apikey,
"hash": self.get_param("data.data"),
}

response = requests.get(url, params=params)

Expand All @@ -36,38 +46,64 @@ def run(self):
downloaded_file = response.content

tempdir = tempfile.gettempdir()
f = open(tempdir + "/" + self.get_param('data.data'), 'wb')
f = open(tempdir + "/" + self.get_param("data.data"), "wb")
f.write(downloaded_file)
f.close()
filename = f.name

kind = filetype.guess(f.name)

if kind.extension != None:
api = TheHiveApi(self.thehive_url, self.thehive_apikey)

if kind and kind.extension != None:
os.rename(f.name, f.name + "." + kind.extension)
filename = f.name + "." + kind.extension

api = TheHiveApi(self.thehive_url, self.thehive_apikey)

file_observable = CaseObservable(dataType='file',
file_observable = CaseObservable(
dataType="file",
data=[filename],
tlp=self.get_param('data.tlp'),
tlp=self.get_param("data.tlp"),
ioc=True,
tags=[
"src:VirusTotal",
str(kind.mime),
str(kind.extension),
"parent:" + self.get_param("data.data"),
],
message="",
)
else:
file_observable = CaseObservable(
dataType="file",
data=[f.name],
tlp=self.get_param("data.tlp"),
ioc=True,
tags=['src:VirusTotal', str(kind.mime), str(kind.extension), 'parent:' + self.get_param('data.data')],
message=''
)
tags=[
"src:VirusTotal",
"parent:" + self.get_param("data.data"),
],
message="",
)

response = api.create_case_observable(case_id, file_observable)

self.report({'message': str(response.status_code) + " " + response.text})
self.report(
{"message": str(response.status_code) + " " + response.text}
)
else:
self.report({'message': 'Virustotal returned the following error code: ' + str(response.status_code) + ". If you receive 403 this means that you are using a public API key but this responder needs a private Virustotal API key!"})
self.report(
{
"message": "Virustotal returned the following error code: "
+ str(response.status_code)
+ ". If you receive 403 this means that you are using a public API key but this responder needs a private Virustotal API key!"
}
)
else:
self.error('Incorrect dataType. "Hash" expected.')

def operations(self, raw):
return [self.build_operation('AddTagToArtifact', tag='Virustotal:Downloaded')]
return [self.build_operation("AddTagToArtifact", tag="Virustotal:Downloaded")]


if __name__ == '__main__':
if __name__ == "__main__":
VirustotalDownloader().run()