def static_analyzer(request, api=False):
"""Do static analysis on an request and save to db."""
try:
if api:
typ = request.POST['scan_type']
checksum = request.POST['hash']
filename = request.POST['file_name']
rescan = str(request.POST.get('re_scan', 0))
else:
typ = request.GET['type']
checksum = request.GET['checksum']
filename = request.GET['name']
rescan = str(request.GET.get('rescan', 0))
# Input validation
app_dic = {}
match = re.match('^[0-9a-f]{32}$', checksum)
if ((match) and (filename.lower().endswith('.apk')
or filename.lower().endswith('.zip'))
and (typ in ['zip', 'apk'])):
app_dic['dir'] = settings.BASE_DIR # BASE DIR
app_dic['app_name'] = filename # APP ORGINAL NAME
app_dic['md5'] = checksum # MD5
app_dic['app_dir'] = os.path.join(
settings.UPLD_DIR, app_dic['md5'] + '/') # APP DIRECTORY
app_dic['tools_dir'] = os.path.join(
app_dic['dir'], 'StaticAnalyzer/tools/') # TOOLS DIR
# DWD_DIR = settings.DWD_DIR # not needed? Var is never used.
logger.info("Starting Analysis on : " + app_dic['app_name'])
if typ == 'apk':
# Check if in DB
# pylint: disable=E1101
db_entry = StaticAnalyzerAndroid.objects.filter(
MD5=app_dic['md5'])
if db_entry.exists() and rescan == '0':
context = get_context_from_db_entry(db_entry)
else:
app_dic[
'app_file'] = app_dic['md5'] + '.apk' # NEW FILENAME
app_dic['app_path'] = app_dic['app_dir'] + \
app_dic['app_file'] # APP PATH
# ANALYSIS BEGINS
app_dic['size'] = str(file_size(
app_dic['app_path'])) + 'MB' # FILE SIZE
app_dic['sha1'], app_dic['sha256'] = hash_gen(
app_dic['app_path'])
app_dic['files'] = unzip(app_dic['app_path'],
app_dic['app_dir'])
if not app_dic['files']:
# Can't Analyze APK, bail out.
msg = "APK file is invalid or corrupt"
if api:
return print_n_send_error_response(
request, msg, True)
else:
return print_n_send_error_response(
request, msg, False)
app_dic['certz'] = get_hardcoded_cert_keystore(
app_dic['files'])
logger.info("APK Extracted")
# Manifest XML
app_dic['parsed_xml'] = get_manifest(
app_dic['app_path'], app_dic['app_dir'],
app_dic['tools_dir'], '', True)
# Get icon
res_path = os.path.join(app_dic['app_dir'], 'res')
app_dic['icon_hidden'] = True
# Even if the icon is hidden, try to guess it by the
# default paths
app_dic['icon_found'] = False
app_dic['icon_path'] = ''
# TODO: Check for possible different names for resource
# folder?
if os.path.exists(res_path):
icon_dic = get_icon(app_dic['app_path'], res_path)
if icon_dic:
app_dic['icon_hidden'] = icon_dic['hidden']
app_dic['icon_found'] = bool(icon_dic['path'])
app_dic['icon_path'] = icon_dic['path']
# Set Manifest link
app_dic['mani'] = '../ManifestView/?md5=' + \
app_dic['md5'] + '&type=apk&bin=1'
man_data_dic = manifest_data(app_dic['parsed_xml'])
app_dic['playstore'] = get_app_details(
man_data_dic['packagename'])
man_an_dic = manifest_analysis(app_dic['parsed_xml'],
man_data_dic)
bin_an_buff = []
bin_an_buff += elf_analysis(app_dic['app_dir'])
bin_an_buff += res_analysis(app_dic['app_dir'])
cert_dic = cert_info(app_dic['app_dir'],
app_dic['app_file'],
app_dic['tools_dir'])
apkid_results = apkid_analysis(app_dic['app_dir'],
app_dic['app_path'],
app_dic['app_name'])
tracker = Trackers.Trackers(app_dic['app_dir'],
app_dic['tools_dir'])
tracker_res = tracker.get_trackers()
dex_2_jar(app_dic['app_path'], app_dic['app_dir'],
app_dic['tools_dir'])
dex_2_smali(app_dic['app_dir'], app_dic['tools_dir'])
jar_2_java(app_dic['app_dir'], app_dic['tools_dir'])
code_an_dic = code_analysis(app_dic['app_dir'],
man_an_dic['permissons'],
"apk")
# Get the strings
string_res = strings_jar(app_dic['app_file'],
app_dic['app_dir'])
if string_res:
app_dic['strings'] = string_res['strings']
code_an_dic["urls_list"].extend(
string_res['urls_list'])
code_an_dic["urls"].extend(string_res['url_nf'])
code_an_dic["emails"].extend(string_res['emails_nf'])
else:
app_dic['strings'] = []
# Firebase DB Check
code_an_dic['firebase'] = firebase_analysis(
list(set(code_an_dic["urls_list"])))
# Domain Extraction and Malware Check
logger.info(
"Performing Malware Check on extracted Domains")
code_an_dic["domains"] = malware_check(
list(set(code_an_dic["urls_list"])))
logger.info("Generating Java and Smali Downloads")
gen_downloads(app_dic['app_dir'], app_dic['md5'],
app_dic['icon_path'])
app_dic['zipped'] = '&type=apk'
logger.info("Connecting to Database")
try:
# SAVE TO DB
if rescan == '1':
logger.info("Updating Database...")
update_db_entry(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
update_scan_timestamp(app_dic['md5'])
elif rescan == '0':
logger.info("Saving to Database")
create_db_entry(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
except:
PrintException("Saving to Database Failed")
context = get_context_from_analysis(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
context["average_cvss"], context["security_score"] = score(
context["findings"])
context['dynamic_analysis_done'] = os.path.exists(
os.path.join(app_dic['app_dir'], 'logcat.txt'))
context['VT_RESULT'] = None
if settings.VT_ENABLED:
vt = VirusTotal.VirusTotal()
context['VT_RESULT'] = vt.get_result(
os.path.join(app_dic['app_dir'], app_dic['md5']) +
'.apk', app_dic['md5'])
template = "static_analysis/android_binary_analysis.html"
if api:
return context
else:
return render(request, template, context)
elif typ == 'zip':
# Check if in DB
# pylint: disable=E1101
cert_dic = {}
cert_dic['cert_info'] = ''
cert_dic['issued'] = ''
cert_dic['sha256Digest'] = False
bin_an_buff = []
app_dic['strings'] = ''
app_dic['zipped'] = ''
# Above fields are only available for APK and not ZIP
db_entry = StaticAnalyzerAndroid.objects.filter(
MD5=app_dic['md5'])
if db_entry.exists() and rescan == '0':
context = get_context_from_db_entry(db_entry)
else:
app_dic[
'app_file'] = app_dic['md5'] + '.zip' # NEW FILENAME
app_dic['app_path'] = app_dic['app_dir'] + \
app_dic['app_file'] # APP PATH
logger.info("Extracting ZIP")
app_dic['files'] = unzip(app_dic['app_path'],
app_dic['app_dir'])
# Check if Valid Directory Structure and get ZIP Type
pro_type, valid = valid_android_zip(app_dic['app_dir'])
if valid and pro_type == 'ios':
logger.info("Redirecting to iOS Source Code Analyzer")
if api:
return {"type": "ios"}
else:
return HttpResponseRedirect(
'/StaticAnalyzer_iOS/?name=' +
app_dic['app_name'] + '&type=ios&checksum=' +
app_dic['md5'])
app_dic['certz'] = get_hardcoded_cert_keystore(
app_dic['files'])
app_dic['zipped'] = pro_type
logger.info("ZIP Type - " + pro_type)
if valid and (pro_type in ['eclipse', 'studio']):
# ANALYSIS BEGINS
app_dic['size'] = str(file_size(
app_dic['app_path'])) + 'MB' # FILE SIZE
app_dic['sha1'], app_dic['sha256'] = hash_gen(
app_dic['app_path'])
# Manifest XML
app_dic['persed_xml'] = get_manifest(
"", app_dic['app_dir'], app_dic['tools_dir'],
pro_type, False)
# Set manifest view link
app_dic['mani'] = ('../ManifestView/?md5=' +
app_dic['md5'] + '&type=' +
pro_type + '&bin=0')
man_data_dic = manifest_data(app_dic['persed_xml'])
app_dic['playstore'] = get_app_details(
man_data_dic['packagename'])
man_an_dic = manifest_analysis(app_dic['persed_xml'],
man_data_dic)
# Get icon
eclipse_res_path = os.path.join(
app_dic['app_dir'], 'res')
studio_res_path = os.path.join(app_dic['app_dir'],
'app', 'src', 'main',
'res')
if os.path.exists(eclipse_res_path):
res_path = eclipse_res_path
elif os.path.exists(studio_res_path):
res_path = studio_res_path
else:
res_path = ''
app_dic['icon_hidden'] = man_an_dic['icon_hidden']
app_dic['icon_found'] = False
app_dic['icon_path'] = ''
if res_path:
app_dic['icon_path'] = find_icon_path_zip(
res_path, man_data_dic['icons'])
if app_dic['icon_path']:
app_dic['icon_found'] = True
if app_dic['icon_path']:
if os.path.exists(app_dic['icon_path']):
shutil.copy2(
app_dic['icon_path'],
os.path.join(settings.DWD_DIR,
app_dic['md5'] + '-icon.png'))
code_an_dic = code_analysis(app_dic['app_dir'],
man_an_dic['permissons'],
pro_type)
# Firebase DB Check
code_an_dic['firebase'] = firebase_analysis(
list(set(code_an_dic["urls_list"])))
# Domain Extraction and Malware Check
logger.info(
"Performing Malware Check on extracted Domains")
code_an_dic["domains"] = malware_check(
list(set(code_an_dic["urls_list"])))
logger.info("Connecting to Database")
try:
# SAVE TO DB
if rescan == '1':
logger.info("Updating Database...")
update_db_entry(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
update_scan_timestamp(app_dic['md5'])
elif rescan == '0':
logger.info("Saving to Database")
create_db_entry(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
except:
PrintException("Saving to Database Failed")
context = get_context_from_analysis(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
else:
msg = "This ZIP Format is not supported"
if api:
return print_n_send_error_response(
request, msg, True)
else:
print_n_send_error_response(request, msg, False)
return HttpResponseRedirect('/zip_format/')
context["average_cvss"], context["security_score"] = score(
context["findings"])
template = "static_analysis/android_source_analysis.html"
if api:
return context
else:
return render(request, template, context)
else:
logger.error(
"Only APK,IPA and Zipped Android/iOS Source code supported now!"
)
else:
msg = "Hash match failed or Invalid file extension or file type"
if api:
return print_n_send_error_response(request, msg, True)
else:
return print_n_send_error_response(request, msg, False)
except Exception as excep:
msg = str(excep)
exp = excep.__doc__
if api:
return print_n_send_error_response(request, msg, True, exp)
else:
return print_n_send_error_response(request, msg, False, exp)
def static_analyzer(request, api=False):
"""Do static analysis on an request and save to db."""
try:
if api:
typ = request.POST['scan_type']
checksum = request.POST['hash']
filename = request.POST['file_name']
rescan = str(request.POST.get('re_scan', 0))
else:
typ = request.GET['type']
checksum = request.GET['checksum']
filename = request.GET['name']
rescan = str(request.GET.get('rescan', 0))
# Input validation
app_dic = {}
match = re.match('^[0-9a-f]{32}$', checksum)
if ((match) and (filename.lower().endswith('.apk')
or filename.lower().endswith('.zip'))
and (typ in ['zip', 'apk'])):
app_dic['dir'] = Path(settings.BASE_DIR) # BASE DIR
app_dic['app_name'] = filename # APP ORGINAL NAME
app_dic['md5'] = checksum # MD5
# APP DIRECTORY
app_dic['app_dir'] = Path(settings.UPLD_DIR) / checksum
app_dic['tools_dir'] = app_dic['dir'] / 'StaticAnalyzer' / 'tools'
app_dic['tools_dir'] = app_dic['tools_dir'].as_posix()
logger.info('Starting Analysis on : %s', app_dic['app_name'])
if typ == 'apk':
app_dic['app_file'] = app_dic['md5'] + '.apk' # NEW FILENAME
app_dic['app_path'] = (app_dic['app_dir'] /
app_dic['app_file']).as_posix()
app_dic['app_dir'] = app_dic['app_dir'].as_posix() + '/'
# Check if in DB
# pylint: disable=E1101
db_entry = StaticAnalyzerAndroid.objects.filter(
MD5=app_dic['md5'])
if db_entry.exists() and rescan == '0':
context = get_context_from_db_entry(db_entry)
else:
# ANALYSIS BEGINS
app_dic['size'] = str(file_size(
app_dic['app_path'])) + 'MB' # FILE SIZE
app_dic['sha1'], app_dic['sha256'] = hash_gen(
app_dic['app_path'])
app_dic['files'] = unzip(app_dic['app_path'],
app_dic['app_dir'])
if not app_dic['files']:
# Can't Analyze APK, bail out.
msg = 'APK file is invalid or corrupt'
if api:
return print_n_send_error_response(
request, msg, True)
else:
return print_n_send_error_response(
request, msg, False)
app_dic['certz'] = get_hardcoded_cert_keystore(
app_dic['files'])
logger.info('APK Extracted')
# Manifest XML
app_dic['parsed_xml'] = get_manifest(
app_dic['app_path'],
app_dic['app_dir'],
app_dic['tools_dir'],
'',
True,
)
# get app_name
app_dic['real_name'] = get_app_name(
app_dic['app_path'],
app_dic['app_dir'],
app_dic['tools_dir'],
True,
)
# Get icon
res_path = os.path.join(app_dic['app_dir'], 'res')
app_dic['icon_hidden'] = True
# Even if the icon is hidden, try to guess it by the
# default paths
app_dic['icon_found'] = False
app_dic['icon_path'] = ''
# TODO: Check for possible different names for resource
# folder?
if os.path.exists(res_path):
icon_dic = get_icon(app_dic['app_path'], res_path)
if icon_dic:
app_dic['icon_hidden'] = icon_dic['hidden']
app_dic['icon_found'] = bool(icon_dic['path'])
app_dic['icon_path'] = icon_dic['path']
# Set Manifest link
app_dic['mani'] = ('../ManifestView/?md5=' +
app_dic['md5'] + '&type=apk&bin=1')
man_data_dic = manifest_data(app_dic['parsed_xml'])
app_dic['playstore'] = get_app_details(
man_data_dic['packagename'])
man_an_dic = manifest_analysis(
app_dic['parsed_xml'],
man_data_dic,
'',
app_dic['app_dir'],
)
bin_an_buff = []
bin_an_buff += elf_analysis(app_dic['app_dir'])
bin_an_buff += res_analysis(app_dic['app_dir'])
cert_dic = cert_info(app_dic['app_dir'],
app_dic['app_file'])
apkid_results = apkid_analysis(app_dic['app_dir'],
app_dic['app_path'],
app_dic['app_name'])
tracker = Trackers.Trackers(app_dic['app_dir'],
app_dic['tools_dir'])
tracker_res = tracker.get_trackers()
apk_2_java(app_dic['app_path'], app_dic['app_dir'],
app_dic['tools_dir'])
dex_2_smali(app_dic['app_dir'], app_dic['tools_dir'])
code_an_dic = code_analysis(app_dic['app_dir'], 'apk')
# Get the strings
string_res = strings_jar(app_dic['app_file'],
app_dic['app_dir'])
if string_res:
app_dic['strings'] = string_res['strings']
app_dic['secrets'] = string_res['secrets']
code_an_dic['urls_list'].extend(
string_res['urls_list'])
code_an_dic['urls'].extend(string_res['url_nf'])
code_an_dic['emails'].extend(string_res['emails_nf'])
else:
app_dic['strings'] = []
app_dic['secrets'] = []
# Firebase DB Check
code_an_dic['firebase'] = firebase_analysis(
list(set(code_an_dic['urls_list'])))
# Domain Extraction and Malware Check
logger.info(
'Performing Malware Check on extracted Domains')
code_an_dic['domains'] = malware_check(
list(set(code_an_dic['urls_list'])))
# Copy App icon
copy_icon(app_dic['md5'], app_dic['icon_path'])
app_dic['zipped'] = 'apk'
logger.info('Connecting to Database')
try:
# SAVE TO DB
if rescan == '1':
logger.info('Updating Database...')
save_or_update(
'update',
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
update_scan_timestamp(app_dic['md5'])
elif rescan == '0':
logger.info('Saving to Database')
save_or_update(
'save',
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
except Exception:
logger.exception('Saving to Database Failed')
context = get_context_from_analysis(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
apkid_results,
tracker_res,
)
context['average_cvss'], context['security_score'] = score(
context['code_analysis'])
context['dynamic_analysis_done'] = is_file_exists(
os.path.join(app_dic['app_dir'], 'logcat.txt'))
context['virus_total'] = None
if settings.VT_ENABLED:
vt = VirusTotal.VirusTotal()
context['virus_total'] = vt.get_result(
app_dic['app_path'], app_dic['md5'])
template = 'static_analysis/android_binary_analysis.html'
if api:
return context
else:
return render(request, template, context)
elif typ == 'zip':
ios_ret = HttpResponseRedirect('/StaticAnalyzer_iOS/?name=' +
app_dic['app_name'] +
'&type=ios&checksum=' +
app_dic['md5'])
# Check if in DB
# pylint: disable=E1101
cert_dic = {
'certificate_info': '',
'certificate_status': '',
'description': '',
}
bin_an_buff = []
app_dic['strings'] = []
app_dic['secrets'] = []
app_dic['zipped'] = ''
# Above fields are only available for APK and not ZIP
app_dic['app_file'] = app_dic['md5'] + '.zip' # NEW FILENAME
app_dic['app_path'] = (app_dic['app_dir'] /
app_dic['app_file']).as_posix()
app_dic['app_dir'] = app_dic['app_dir'].as_posix() + '/'
db_entry = StaticAnalyzerAndroid.objects.filter(
MD5=app_dic['md5'])
ios_db_entry = StaticAnalyzerIOS.objects.filter(
MD5=app_dic['md5'])
if db_entry.exists() and rescan == '0':
context = get_context_from_db_entry(db_entry)
elif ios_db_entry.exists() and rescan == '0':
if api:
return {'type': 'ios'}
else:
return ios_ret
else:
logger.info('Extracting ZIP')
app_dic['files'] = unzip(app_dic['app_path'],
app_dic['app_dir'])
# Check if Valid Directory Structure and get ZIP Type
pro_type, valid = valid_android_zip(app_dic['app_dir'])
if valid and pro_type == 'ios':
logger.info('Redirecting to iOS Source Code Analyzer')
if api:
return {'type': 'ios'}
else:
return ios_ret
app_dic['certz'] = get_hardcoded_cert_keystore(
app_dic['files'])
app_dic['zipped'] = pro_type
logger.info('ZIP Type - %s', pro_type)
if valid and (pro_type in ['eclipse', 'studio']):
# ANALYSIS BEGINS
app_dic['size'] = str(file_size(
app_dic['app_path'])) + 'MB' # FILE SIZE
app_dic['sha1'], app_dic['sha256'] = hash_gen(
app_dic['app_path'])
# Manifest XML
app_dic['persed_xml'] = get_manifest(
'',
app_dic['app_dir'],
app_dic['tools_dir'],
pro_type,
False,
)
# get app_name
app_dic['real_name'] = get_app_name(
app_dic['app_path'],
app_dic['app_dir'],
app_dic['tools_dir'],
False,
)
# Set manifest view link
app_dic['mani'] = ('../ManifestView/?md5=' +
app_dic['md5'] + '&type=' +
pro_type + '&bin=0')
man_data_dic = manifest_data(app_dic['persed_xml'])
app_dic['playstore'] = get_app_details(
man_data_dic['packagename'])
man_an_dic = manifest_analysis(
app_dic['persed_xml'],
man_data_dic,
pro_type,
app_dic['app_dir'],
)
# Get icon
eclipse_res_path = os.path.join(
app_dic['app_dir'], 'res')
studio_res_path = os.path.join(app_dic['app_dir'],
'app', 'src', 'main',
'res')
if os.path.exists(eclipse_res_path):
res_path = eclipse_res_path
elif os.path.exists(studio_res_path):
res_path = studio_res_path
else:
res_path = ''
app_dic['icon_hidden'] = man_an_dic['icon_hidden']
app_dic['icon_found'] = False
app_dic['icon_path'] = ''
if res_path:
app_dic['icon_path'] = find_icon_path_zip(
res_path, man_data_dic['icons'])
if app_dic['icon_path']:
app_dic['icon_found'] = True
if app_dic['icon_path']:
if os.path.exists(app_dic['icon_path']):
shutil.copy2(
app_dic['icon_path'],
os.path.join(settings.DWD_DIR,
app_dic['md5'] + '-icon.png'))
code_an_dic = code_analysis(app_dic['app_dir'],
pro_type)
# Firebase DB Check
code_an_dic['firebase'] = firebase_analysis(
list(set(code_an_dic['urls_list'])))
# Domain Extraction and Malware Check
logger.info(
'Performing Malware Check on extracted Domains')
code_an_dic['domains'] = malware_check(
list(set(code_an_dic['urls_list'])))
logger.info('Connecting to Database')
try:
# SAVE TO DB
if rescan == '1':
logger.info('Updating Database...')
save_or_update(
'update',
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
update_scan_timestamp(app_dic['md5'])
elif rescan == '0':
logger.info('Saving to Database')
save_or_update(
'save',
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
except Exception:
logger.exception('Saving to Database Failed')
context = get_context_from_analysis(
app_dic,
man_data_dic,
man_an_dic,
code_an_dic,
cert_dic,
bin_an_buff,
{},
{},
)
else:
msg = 'This ZIP Format is not supported'
if api:
return print_n_send_error_response(
request, msg, True)
else:
print_n_send_error_response(request, msg, False)
ctx = {
'title': 'Invalid ZIP archive',
'version': settings.MOBSF_VER,
}
template = 'general/zip.html'
return render(request, template, ctx)
context['average_cvss'], context['security_score'] = score(
context['code_analysis'])
template = 'static_analysis/android_source_analysis.html'
if api:
return context
else:
return render(request, template, context)
else:
err = ('Only APK,IPA and Zipped '
'Android/iOS Source code supported now!')
logger.error(err)
else:
msg = 'Hash match failed or Invalid file extension or file type'
if api:
return print_n_send_error_response(request, msg, True)
else:
return print_n_send_error_response(request, msg, False)
except Exception as excep:
logger.exception('Error Performing Static Analysis')
msg = str(excep)
exp = excep.__doc__
if api:
return print_n_send_error_response(request, msg, True, exp)
else:
return print_n_send_error_response(request, msg, False, exp)