def each(self, target):
self.results = dict()
try:
# lief
oat = lief.parse(target)
oat_dict = json.loads(lief.to_json(oat), parse_int=str)
self.results.update(oat_dict)
# add extracted dex files
for idx, dex_file in enumerate(oat.dex_files):
temp = tempdir()
fname = 'classes_{}.dex'.format(str(idx))
dex_filepath = os.path.join(temp, fname)
dex_file.save(dex_filepath)
if os.path.isfile(dex_filepath):
self.add_extracted_file(dex_filepath)
# androguard
sha256, vm, vm_analysis = AnalyzeDex(target)
aguard_dict = {
'androguard': {
'internal_classes': self._get_internal_classes(vm_analysis)
}
}
self.results.update(aguard_dict)
except:
self.log('error', traceback.print_exc())
return True
def each(self, target):
tmpdir = tempdir()
rf = RarFile(target)
namelist = rf.namelist()
for name in namelist:
try:
rf.extract(name, tmpdir)
filepath = os.path.join(
tmpdir,
name,
)
if os.path.isfile(filepath):
self.add_extracted_file(filepath)
except RuntimeError:
for password in ['virus', 'infected']:
try:
filepath = rf.extract(name, tmpdir, pwd=password)
if os.path.isfile(filepath):
self.add_extracted_file(filepath)
break
except RuntimeError:
pass
else:
self.log('error', 'Could not extract {}'.format(name))
return True
def register_response_as(self, type, response, zipped=False):
if response.status_code != 200:
self.log(
'error', 'could not find {0} for task id {1}'.format(
type, self.task_id))
else:
tmpdir = tempdir()
if zipped:
f = open(os.path.join(tmpdir, 'zip'), 'a+b')
else:
filename = os.path.join(tmpdir, 'cuckoo_response')
f = open(filename, "wb")
for chunk in response.iter_content(1024):
f.write(chunk)
if zipped:
f.seek(0)
z = zipfile.ZipFile(f)
for name in z.namelist():
filename = z.extract(name, tmpdir)
self.register_files(type, filename)
f.close()
else:
f.close()
self.register_files(type, filename)
def extract_info(self, report):
self.results['unpacked_executables'] = []
if report.get('results'):
for item in report['results']:
sig = dict()
sig['name'] = item['hashes']['sha256']
sig['malwares'] = []
sig['detects'] = []
if item.get('malware_id'):
for mal in item['malware_id']:
sig['malwares'].append(mal['name'])
if item.get('detectit'):
for detect in item['detectit']:
sig['detects'].append(detect['name'])
self.results['unpacked_executables'].append(sig)
if self.collect_unpacked:
API_KEY_STRING = 'Key %s' % self.api_key
auth_header = {'Authorization': API_KEY_STRING}
r = requests.get(self.api_endpoint + 'download/' +
item['hashes']['sha256'],
headers=auth_header)
sample_data = r.content
tmpdir = tempdir()
filename = os.path.join(tmpdir,
'unpacme_unpacked_executable')
with open(filename, "wb") as f:
f.write(sample_data)
self.register_files('unpacked_executable', filename)
def process_report(self):
url = self.base_url + 'analysis/download'
# Download JSON report to extract IOCs
params = dict(self.joe_params)
params['type'] = 'lightjson'
response = urlopen(url, urlencode(params))
if response.getcode() != 200:
self.log(
'error', 'could not find report for task id {}: {}'.format(
self.joe_params['webid'], response.read()))
else:
self.extract_iocs(response)
# Download HTML report to extract execution graph
params['type'] = 'lighthtml'
response = urlopen(url, urlencode(params))
if response.getcode() != 200:
self.log(
'error', 'could not find report for task id {}: {}'.format(
self.joe_params['webid'], response.read()))
else:
tmpdir = tempdir()
filepath = os.path.join(tmpdir, 'joe_report.html')
with open(filepath, 'w+b') as fd:
copyfileobj(response, fd)
fd.seek(0, 0)
self.extract_graph(fd)
self.add_support_file('Report', filepath)
def each(self, target):
self.results = {'warnings': []}
# Create temporary directory to get results
self.outdir = tempdir()
self.results_dir = os.path.join(self.outdir, 'output')
if not os.path.isdir(self.results_dir):
os.mkdir(self.results_dir)
with open(os.path.join(self.outdir, "passwords_candidates.txt"),
"w+") as f:
f.write(self.password_candidates)
copyfile(target, os.path.join(self.outdir, os.path.basename(target)))
target = os.path.join("/data/", os.path.basename(target))
# execute docker container
output = self.extract(target)
# save log output from dockerized app, extract potential redirections
self.save_output(output)
return True
def each(self, target):
self.add_ioc(target)
response = requests.get(target, stream=True)
if response.status_code == 200:
tmpdir = tempdir()
try:
filename = parse_header(response.headers['content-disposition'])[1]['filename']
except KeyError:
filename = target.split('/')[-1]
if not filename:
filename = "no_filename"
filepath = os.path.join(tmpdir, filename)
with open(filepath, 'wb') as fd:
for chunk in response.iter_content(1024):
fd.write(chunk)
self.add_extracted_file(filepath)
self.add_ioc(target, 'payload_delivery')
return True
else:
raise ModuleExecutionError("Could not download file. Status: {}".format(response.status_code))
def each(self, target):
self.results = {'warnings': []}
tmpdir = tempdir()
password_candidates = self.password_candidates.split("\n")
zf = ZipFile(target)
namelist = zf.namelist()
if 'classes.dex' in namelist and 'META-INF/MANIFEST.MF' in namelist:
self.change_type(target, 'apk')
self.results['warnings'].append(
'File type was changed to apk, files were not extracted.')
else:
should_extract = len(namelist) <= self.maximum_extracted_files
should_analyze = len(namelist) <= self.maximum_automatic_analyses
if should_extract:
for name in namelist:
try:
filepath = zf.extract(name, tmpdir)
if os.path.isfile(filepath):
self.add_extracted_file(
filepath, automatic_analysis=should_analyze)
except RuntimeError:
for password in password_candidates:
try:
filepath = zf.extract(name,
tmpdir,
pwd=password)
if os.path.isfile(filepath):
self.add_extracted_file(
filepath,
automatic_analysis=should_analyze)
break
except RuntimeError:
pass
else:
self.results['warnings'].append(
u'Could not extract {} (password not known)'.
format(name))
if not should_analyze:
self.results['warnings'].append(
"Archive contains more than {} files ({}), so no analysis was automatically created."
.format(self.maximum_automatic_analyses,
len(namelist)))
else:
self.results['warnings'].append(
"Archive contains more than {} files ({}), so they were not extracted."
.format(self.maximum_extracted_files, len(namelist)))
if self.results['warnings']:
self.results['files'] = namelist
else:
self.results = None
return True
def each(self, target):
tmpdir = tempdir()
password_candidates = self.password_candidates.split("\n")
with open(target, "rb") as myfile:
document = OfficeFile(myfile)
for password in password_candidates:
password = password.strip()
try:
document.load_key(password=password)
out_file = tmpdir + os.path.sep + "decrypted_" + os.path.basename(
target)
with open(out_file, "wb") as output:
document.decrypt(output)
if os.path.isfile(out_file):
self.add_extracted_file(out_file)
break
except:
pass
else:
self.log(
'error',
'Could not extract {} (password not known)'.format(target))
return True
def each(self, target):
fp = open(target)
msg = email.message_from_file(fp)
fp.close()
path_temp = tempdir()
counter = 1
for part in msg.walk():
# multipart/* are just containers
if part.get_content_maintype() == 'multipart':
continue
# Applications should really sanitize the given filename so that an
# email message can't be used to overwrite important files
filename = part.get_filename()
if not filename:
ext = mimetypes.guess_extension(part.get_content_type())
if not ext:
# Use a generic bag-of-bits extension
ext = '.bin'
filename = 'part-%03d%s' % (counter, ext)
counter += 1
filepath = os.path.join(path_temp, filename)
fp = open(filepath, 'wb')
fp.write(part.get_payload(decode=True))
fp.close()
self.add_extracted_file(filepath)
def store_report_summary(self):
url = self.web_base_url + '/filereport/{}/htmlsummary/'.format(
self.task_id)
tmpdir = tempdir()
filepath = urlretrieve(url, os.path.join(tmpdir,
'cuckoo_report.html'))[0]
self.add_support_file('Report', filepath)
def extract(self, target):
tmpdir = tempdir()
os.system("acefile-unace -d {} -x {}".format(tmpdir, target))
files = os.popen("acefile-unace -l {}".format(target)).read().split('\n')
for i in range(len(files)):
files[i] = tmpdir + '/' + files[i]
return files
def each(self, target):
tmpdir = tempdir()
password_candidates = self.password_candidates.split("\n")
zf = ZipFile(target)
namelist = zf.namelist()
if 'classes.dex' in namelist and 'META-INF/MANIFEST.MF' in namelist:
self.change_type(target, 'apk')
self.results = {'message': 'File type was changed to apk.'}
else:
for name in namelist:
try:
filepath = zf.extract(name, tmpdir)
if os.path.isfile(filepath):
self.add_extracted_file(filepath)
except RuntimeError:
for password in password_candidates:
try:
filepath = zf.extract(name, tmpdir, pwd=password)
if os.path.isfile(filepath):
self.add_extracted_file(filepath)
break
except RuntimeError:
pass
else:
self.log(
'error',
'Could not extract {} (password not known)'.format(
name))
return True
def each(self, target):
with open(target, 'r') as f:
msg = email.message_from_file(f)
outdir = tempdir()
# Extract Headers
self.register_headers(msg, outdir)
self.extract_urls(msg)
# Extract Attachments
counter = 1
for part in msg.walk():
# multipart/* are just containers
if part.get_content_maintype() == 'multipart':
continue
content_disposition = part.get('Content-Disposition', None)
if content_disposition and 'attachment' in content_disposition:
filename = part.get_filename()
if not filename:
ext = mimetypes.guess_extension(part.get_content_type())
if not ext:
# Use a generic bag-of-bits extension
ext = '.bin'
filename = 'part-{}{}'.format(counter, ext)
counter += 1
filepath = os.path.join(outdir, filename)
with open(filepath, 'wb') as out:
out.write(part.get_payload(decode=True))
self.add_extracted_file(filepath)
def get_unpacked_executables(self):
url = self.base_url + 'analysis/download'
# Download JSON report to extract IOCs
params = dict(self.joe_params)
params['type'] = 'unpackpe'
response = urlopen(url, urlencode(params))
if response.getcode() != 200:
self.log(
'error',
'could not find unpacked PEs for task id {}: {}'.format(
self.joe_params['webid'], response.read()))
else:
tmpdir = tempdir()
filepath = os.path.join(tmpdir, 'unpacked.zip')
with open(filepath, 'w+b') as fd:
copyfileobj(response, fd)
try:
unpacked_files = []
zf = ZipFile(filepath)
for name in zf.namelist():
unpacked_files.append(
zf.extract(name, tmpdir, pwd='infected'))
self.register_files('unpacked_executable', unpacked_files)
except BadZipfile:
pass
def _store_internal_classes(self):
filepath = os.path.join(tempdir(), 'internal_classes.json')
with open(filepath, 'w') as f:
json.dump(self.results['internal_classes'],
f,
sort_keys=True,
indent=4)
self.add_support_file('Internal Classes & Methods', filepath)
def each(self, target):
tmpdir = tempdir()
filepath = os.path.join(tmpdir, target+'-extracted')
with gzip.open(target, 'rb') as f_in:
with open(filepath, 'wb') as f_out:
shutil.copyfileobj(f_in, f_out)
if os.path.isfile(filepath):
self.add_extracted_file(filepath)
return True
def temp_volume(target):
"""Create a temporary directory and copy the target to it.
Meant to be mounted inside the Docker container to send the target and get the results."""
tmp = tempdir()
os.makedirs(os.path.join(tmp, 'output'))
copy(target, os.path.join(tmp, os.path.basename(target)))
return tmp
def each(self, target):
if not target.lower().endswith('.jse'):
return False
tmpdir = tempdir()
decoded_filename = target.split('/')[-1][:-1]
dest_file = "{}/{}".format(tmpdir, decoded_filename)
os.system('fame/modules/srozb/processing/decoder {} {}'.format(
target, dest_file))
self.add_extracted_file(dest_file)
return True
def __extract(self, name, checksum, countid, data):
fpath = "%s/res%d_%s" % (tempdir(), countid, name)
with open(fpath, 'wb') as f:
f.write(data)
for i in range(0, 5):
try:
self.add_extracted_file(fpath)
break
except:
continue
return fpath
def each(self, target):
self.results = {'warnings': []}
tmpdir = tempdir()
password_candidates = self.password_candidates.split("\n")
rf = rarfile.RarFile(target)
filelist = rf.infolist()
should_extract = len(filelist) <= self.maximum_extracted_files
should_analyze = len(filelist) <= self.maximum_automatic_analyses
if should_extract:
for f in filelist:
try:
filepath = rf.extract(f.filename, path=tmpdir)
if os.path.isfile(filepath):
self.add_extracted_file(
filepath, automatic_analysis=should_analyze)
except RuntimeError:
for password in password_candidates:
try:
filepath = rf.extract(f.filename,
path=tmpdir,
pwd=password)
if os.path.isfile(filepath):
self.add_extracted_file(
filepath,
automatic_analysis=should_analyze)
break
except RuntimeError:
pass
else:
self.results['warnings'].append(
u'Could not extract {} (password not known)'.
format(f.filename))
if not should_analyze:
self.results['warnings'].append(
"Archive contains more than {} files ({}), so no analysis was automatically created."
.format(self.maximum_automatic_analyses, len(filelist)))
else:
self.results['warnings'].append(
"Archive contains more than {} files ({}), so they were not extracted."
.format(self.maximum_extracted_files, len(filelist)))
if self.results['warnings']:
self.results['files'] = filelist
else:
self.results = None
return True
def each(self, target):
tmpdir = tempdir()
zf = ZipFile(target)
namelist = zf.namelist()
if 'classes.dex' in namelist and 'META-INF/MANIFEST.MF' in namelist:
self.change_type(target, 'apk')
self.results = {
'message': 'File type was changed to apk.'
}
return True
def get_unpacked_executables(self):
try:
data = self.joe.analysis_download(self.webid, "unpackpe")
unpackpe = io.BytesIO(data[1])
tmpdir = tempdir()
unpacked_files = []
with ZipFile(unpackpe) as zf:
for name in zf.namelist():
unpacked_files.append(zf.extract(name, tmpdir, pwd='infected'))
self.register_files('unpacked_executable', unpacked_files)
except Exception as err:
raise ModuleExecutionError('Error encountered while processing unpacked executables:\n{}'.format(err))
def each(self, target):
tmpdir = tempdir()
f = magic.Magic(mime=False, uncompress=False)
details = f.from_file(target)
if details.find('UPX compressed') != -1:
output = os.path.join(tmpdir, 'unpacked_upx_%s' % os.path.basename(target))
r = self.unpack(target, output)
if os.path.isfile(output) and r:
self.add_extracted_file(output)
else:
return False
return True
def each_with_type(self, target, filetype):
self.results = {
'redirections': [],
'target': None
}
# Create temporary directory to get results
self.outdir = tempdir()
# Check if we're trying to analyze a local html file
# if it is, the file is copied to the docker volume
if filetype == "html":
copyfile(target, os.path.join(self.outdir, "input.html"))
target = "file:///data/input.html"
# add http protocol if missing
# requests lib needs it
if filetype == "url" and not target.startswith('http'):
target = 'http://{}'.format(target)
if filetype == "url":
self.add_ioc(target)
# output dir
results_dir = os.path.join(self.outdir, 'output')
if not os.path.isdir(results_dir):
os.mkdir(results_dir)
# execute docker container
output = self.preview(target)
# save log output from dockerized app, extract potential redirections
self.save_output(output)
# save preview image
screenshot = self.save_preview(results_dir)
with open(os.path.join(results_dir, "output.html")) as f:
parser = MyHTMLParser()
parser.feed(f.read())
for url in parser.get_urls():
self.add_ioc(url)
if len(self.results['redirections']) > 0:
# save redirections as observable
self.add_ioc(self.results['redirections'], ['redirection'])
# save target as observable
self.add_ioc(self.results['target'])
return len(self.results['redirections']) > 0 or screenshot
def register_response_as(self, type, response, zipped=False):
if response.status_code != 200:
self.log('error', 'could not find {0} for task id {1}'.format(type, self.task_id))
else:
tmpdir = tempdir()
filename = os.path.join(tmpdir, 'cuckoo_response')
f = open(filename, "wb")
for chunk in response.iter_content(1024):
f.write(chunk)
f.close()
self.register_files(type, filename)
def each(self, target):
self.tmpdir = tempdir()
self.results = dict()
apk, vm, vm_analysis = AnalyzeAPK(target)
self.results['package'] = apk.get_package()
self.validate_signature(target)
ref_apk = self.download_reference_apk()
self.validate_signature(ref_apk, "ref")
self.results['verification_result'] = self.results['target_status'] and self.results['ref_status'] and (self.results['target_certificate'] == self.results['ref_certificate'])
return True
def each_dump(self):
self.ignored_rules = list_value(self.ignored_rules)
# Create file containing rules
tmpdir = tempdir()
rules_path = os.path.join(tmpdir, "rules")
rules = open(rules_path, "w")
rules.write(self.rules)
rules.close()
# Build a VadYaraScan plugin instance
vad_yara_scan = self.configure_plugin(
"windows.vadyarascan.VadYaraScan",
yara_file="file://{}".format(rules_path))
rules = yarascan.YaraScan.process_yara_options(
dict(vad_yara_scan.config))
for task in pslist.PsList.list_processes(
context=vad_yara_scan.context,
layer_name=vad_yara_scan.config["primary"],
symbol_table=vad_yara_scan.config["nt_symbols"],
):
layer_name = task.add_process_layer()
layer = vad_yara_scan.context.layers[layer_name]
for offset, rule_name, name, value in layer.scan(
context=vad_yara_scan.context,
scanner=yarascan.YaraScanner(rules=rules),
sections=vad_yara_scan.get_vad_maps(task),
):
if rule_name not in self.ignored_rules:
self.results.append({
"rule":
rule_name,
"owner":
task.ImageFileName.cast(
"string",
max_length=task.ImageFileName.vol.count,
errors="replace"),
"pid":
task.UniqueProcessId,
"variable":
name,
"hexdump":
hexdump(value, result="return"),
})
self.add_tag(rule_name)
return len(self.results) > 0
def each(self, target):
self.results = {'warnings': []}
# Create temporary directory to get results
self.outdir = tempdir()
copyfile(target, os.path.join(self.outdir, "archive.ace"))
target = "/data/archive.ace"
# execute docker container
output = self.extract(target)
# save log output from dockerized app, extract potential redirections
self.save_output(output)
return True
def process_report(self):
try:
data = self.joe.analysis_download(self.webid, type="lightjson")
report = io.BytesIO(data[1])
self.extract_iocs(report)
data = self.joe.analysis_download(self.webid, type="html")
report = io.BytesIO(data[1])
self.extract_graph(report)
tmpdir = tempdir()
filepath = os.path.join(tmpdir, 'joe_report.html')
with open(filepath, 'w+b') as fd:
fd.write(data[1])
self.add_support_file('Report', filepath)
except Exception as error:
raise ModuleExecutionError(
'Error encountered while processing report:\n{}'.format(error))
