def processAndSubmit(self):
# Create SDO's / Cyber Obs
ext_ref = ExternalReference(
source_name=f"Cuckoo Sandbox Report {str(self.report.info.id)}",
url=f"{self.cuckoo_url}/analysis/{str(self.report.info.id)}/summary",
external_id=str(self.report.info.id),
)
if self.report.network.hosts:
ips = self.createIPObs(self.report.network.hosts)
else:
ips = []
if self.report.network.domains:
fqdns = self.createDNSObs(self.report.network.domains)
else:
fqdns = [[], []]
if self.report.process:
processes = self.createProcessObs(self.report.process)
else:
processes = []
if self.EnableRegKeys:
if self.report.behavior:
if self.report.behavior.regkey_written:
registry_keys = self.createRegKeysObs(
self.report.behavior.regkey_written
)
else:
registry_keys = None
else:
registry_keys = None
else:
registry_keys = None
if self.EnableNetTraffic:
if self.report.network:
network_traffic = self.createNetTrafficObs(self.report.network)
else:
network_traffic = None
else:
network_traffic = None
if self.report.dropped:
dropped_binaries = self.createBinarieObs(self.report.dropped)
else:
dropped_binaries = []
if self.report.signatures:
AttackPatterns = self.getAttackPatterns(self.report.signatures)
else:
AttackPatterns = []
self.helper.log_info(fqdns)
# Get all IDs from ATPs/CyberObs
IDs = self.get_related(
ips,
fqdns[0],
processes,
network_traffic,
dropped_binaries,
AttackPatterns,
registry_keys,
)
# Create Main binary and link All ATPs/Cyber Obs
payload = self.createPrimaryBinary(self.report.target.file, ext_ref)
payload_relations = []
bundle_ids = []
for ID in IDs:
try:
IDx = ID.id
bundle_ids.append(
ID
) # Get list for bundle w/o Attack Patterns that exisit
except:
IDx = ID
payload_relations.append(
Relationship(
relationship_type="related-to",
source_ref=payload[0].id,
target_ref=IDx,
)
)
for ATP in AttackPatterns:
payload_relations.append(
Relationship(
relationship_type="related-to",
source_ref=payload[0].id,
target_ref=ATP,
)
)
IDs.append(payload[0]) # Add Observeable
IDs.append(payload[1]) # Add Indicator
bundle_ids.append(payload[0])
bundle_ids.append(payload[1])
payload_relations.append(payload[2])
if int(self.report.info.score) >= self.ReportScore:
# Create Report and link All ATPs/Cyber Obs/Payload
report = self.createCuckooReport(self.report, IDs, ext_ref)
b = Bundle(
report, bundle_ids, payload_relations, fqdns[1]
) # fqdns[1] is the Resolves-to relations
else:
b = Bundle(bundle_ids, payload_relations, fqdns[1])
self.helper.send_stix2_bundle(b.serialize())
return None
def post_language_contents(request, object_ref, ctirs_auth_user):
try:
j = json.loads(request.body)
#S-TIP Identity 作成する
stip_identity = _get_stip_identname(request.user)
#bundle 作成
bundle = Bundle(stip_identity)
#参照元の obejct を取得
object_ = get_object(object_ref)
if object_ is None:
return error(
Exception('No document. (object_ref=%s)' % (object_ref)))
for language_content in j[u'language_contents']:
selector_str = language_content[u'selector']
content_value = language_content[u'content']
language = language_content[u'language']
try:
selector_elems = selector_str.split('.')
last_elem = object_
#selector の 要素をチェックする
if len(selector_elems) == 1:
#selector が . でつながられていない場合
last_selector = selector_str
last_elem = is_exist_objects(selector_str, last_elem)
else:
#selector が . でつながられている場合は最後までたどる
for selector in selector_elems[:-1]:
last_selector = selector
last_elem = is_exist_objects(selector, last_elem)
if last_elem is None:
raise Exception('selector is invalid: ' +
str(selector_str))
if isinstance(last_elem, list) == True:
#空要素で初期化し、該当 index の要素だけ上書きする
lc_lists = [''] * len(last_elem)
lc_lists[get_list_index_from_selector(
selector_elems[-1])] = content_value
content = lc_lists
selector = '.'.join(selector_elems[:-1])
elif isinstance(last_elem, dict) == True:
#空辞書で初期化し、該当 index の要素だけ上書きする
content = {}
content[selector_elems[-1]] = content_value
selector = '.'.join(selector_elems[:-1])
else:
#list ではない
content = content_value
selector = last_selector
except Exception as e:
traceback.print_exc()
raise e
contents = {}
contents[language] = {selector: content}
language_content = LanguageContent(
created_by_ref=stip_identity,
object_ref=object_ref,
object_modified=object_[u'modified'],
contents=contents)
bundle.objects.append(language_content)
#viaを取得
via = Vias.get_via_rest_api_upload(uploader=ctirs_auth_user.id)
community = Communities.get_default_community()
#stixファイルを一時ファイルに出力
stix_file_path = tempfile.mktemp(suffix='.json')
with open(stix_file_path, 'wb+') as fp:
fp.write(
bundle.serialize(indent=4, ensure_ascii=False).encode('utf-8'))
#登録処理
regist(stix_file_path, community, via)
resp = get_normal_response_json()
bundle_json = json.loads(str(bundle))
resp['data'] = {'bundle': bundle_json}
return JsonResponse(resp, status=201, safe=False)
except Exception as e:
traceback.print_exc()
return error(e)
def post_language_contents(request, object_ref, ctirs_auth_user):
try:
j = json.loads(request.body)
stip_identity = _get_stip_identname(request.user)
bundle = Bundle(stip_identity)
object_ = get_object(object_ref)
if object_ is None:
return error(
Exception('No document. (object_ref=%s)' % (object_ref)))
for language_content in j['language_contents']:
selector_str = language_content['selector']
content_value = language_content['content']
language = language_content['language']
try:
selector_elems = selector_str.split('.')
last_elem = object_
if len(selector_elems) == 1:
last_selector = selector_str
last_elem = is_exist_objects(selector_str, last_elem)
else:
for selector in selector_elems[:-1]:
last_selector = selector
last_elem = is_exist_objects(selector, last_elem)
if last_elem is None:
raise Exception('selector is invalid: ' +
str(selector_str))
if isinstance(last_elem, list):
lc_lists = [''] * len(last_elem)
lc_lists[get_list_index_from_selector(
selector_elems[-1])] = content_value
content = lc_lists
selector = '.'.join(selector_elems[:-1])
elif isinstance(last_elem, dict):
content = {}
content[selector_elems[-1]] = content_value
selector = '.'.join(selector_elems[:-1])
else:
content = content_value
selector = last_selector
except Exception as e:
traceback.print_exc()
raise e
contents = {}
contents[language] = {selector: content}
language_content = LanguageContent(
created_by_ref=stip_identity,
object_ref=object_ref,
object_modified=object_['modified'],
contents=contents)
bundle.objects.append(language_content)
via = Vias.get_via_rest_api_upload(uploader=ctirs_auth_user.id)
community = Communities.get_default_community()
stix_file_path = tempfile.mktemp(suffix='.json')
with open(stix_file_path, 'wb+') as fp:
fp.write(bundle.serialize(indent=4, ensure_ascii=False)).encode()
regist(stix_file_path, community, via)
resp = get_normal_response_json()
bundle_json = json.loads(str(bundle))
resp['data'] = {'bundle': bundle_json}
return JsonResponse(resp, status=201, safe=False)
except Exception as e:
traceback.print_exc()
return error(e)
def get_stix2_bundle(indicators,
ttps,
tas,
title,
content,
stix2_titles=[],
stix2_contents=[],
stip_user=None):
# S-TIP Identity 作成する
stip_identity = _get_stip_identname(stip_user)
# Report と StipSns に格納する granular_markings を取得する
granular_markings = _make_granular_markings(stix2_titles[0],
stix2_contents[0],
stip_user.language)
# 共通 lang
common_lang = stip_user.language
# StipSns Object (Custom Object)
stip_sns = StipSns(lang=common_lang,
granular_markings=granular_markings,
post_type='post',
created_by_ref=stip_identity,
name=title,
description=content)
# ReportObject
report = Report(lang=common_lang,
granular_markings=granular_markings,
name=title,
description=content,
created_by_ref=stip_identity,
published=datetime.datetime.now(tz=pytz.utc),
report_types=['threat-report'],
object_refs=[stip_sns])
# language-content 作成
if granular_markings is None:
# S-TIP オブジェクト用の language-content 作成
language_contents = _get_language_contents(stix2_titles,
stix2_contents)
if common_lang in language_contents:
del language_contents[common_lang]
s_tip_lc = LanguageContent(created_by_ref=stip_identity,
object_ref=stip_sns,
object_modified=stip_sns.created,
contents=language_contents)
# Report オブジェクト用の language-content 作成
report_lc = LanguageContent(object_ref=report,
created_by_ref=stip_identity,
object_modified=report.created,
contents=language_contents)
# bundle 作成
bundle = Bundle(stip_identity, report, stip_sns, s_tip_lc, report_lc)
else:
# granular_markings が存在するときは language-content は作成しない
# bundle 作成
bundle = Bundle(stip_identity, report, stip_sns)
# objects に Vulnerability 追加
for ttp in ttps:
bundle.objects.append(_get_vulnerability_object(ttp, stip_identity))
# objects に ThreatActor 追加
for ta in tas:
bundle.objects.append(_get_threat_actor_object(ta, stip_identity))
# objects に Indicator 追加
for indicator in indicators:
indicator_o = _get_indicator_object(indicator, stip_identity)
if indicator_o is not None:
bundle.objects.append(indicator_o)
return bundle
def get_post_stix2_bundle(indicators,
ttps,
tas,
title,
content,
tlp,
referred_url,
sharing_range,
stix2_titles=[],
stix2_contents=[],
x_stip_sns_attachment_refs=None,
stip_user=None):
# S-TIP Identity 作成する
individual_identity = _get_individual_identity(stip_user)
organization_identity = _get_organization_identity(stip_user)
# x_stip_sns_author
x_stip_sns_author = _get_x_stip_sns_author(stip_user)
# x_stip_sns_post
x_stip_sns_post = _get_x_stip_sns_post(title, content, tlp, sharing_range,
referred_url)
# x_stip_sns_object_ref
x_stip_sns_object_ref = None
# x_stip_sns_tags
x_stip_sns_tags = None
# x_stip_sns_indicators
x_stip_sns_indicators = None
# x_stip_sns_identity
x_stip_sns_identity = _get_x_stip_sns_identity()
# x_stip_sns_tool
x_stip_sns_tool = _get_x_stip_sns_tool()
# Report Object 用 object_refs
report_object_refs = []
# TLP marking_object 取得
tlp_marking_object = _get_tlp_markings(tlp)
# bundle 作成
bundle = Bundle(individual_identity, tlp_marking_object)
if organization_identity:
bundle.objects.append(organization_identity)
bundle.objects.append(
_get_relationship_between_individual_to_organization(
individual_identity, organization_identity))
# objects に Vulnerability 追加
for ttp in ttps:
vulnerablity_object = _get_vulnerability_object(
ttp, individual_identity, tlp_marking_object)
bundle.objects.append(vulnerablity_object)
report_object_refs.append(vulnerablity_object)
# objects に ThreatActor 追加
for ta in tas:
ta_object = _get_threat_actor_object(ta, individual_identity,
tlp_marking_object)
bundle.objects.append(ta_object)
report_object_refs.append(ta_object)
# objects に Indicator 追加
for indicator in indicators:
indicator_o = _get_indicator_object(indicator, individual_identity,
tlp_marking_object)
if indicator_o is not None:
bundle.objects.append(indicator_o)
report_object_refs.append(indicator_o)
# 共通 lang
common_lang = stip_user.language
# Report と StipSns に格納する granular_markings を取得する
if len(stix2_titles) > 0 and len(stix2_contents) > 0:
granular_markings = _make_granular_markings(stix2_titles[0],
stix2_contents[0],
stip_user.language)
else:
granular_markings = None
# StipSns Object (Custom Object)
stip_sns = StipSns(lang=common_lang,
granular_markings=granular_markings,
object_marking_refs=[tlp_marking_object],
created_by_ref=individual_identity,
name=title,
description=content,
x_stip_sns_type='post',
x_stip_sns_author=x_stip_sns_author,
x_stip_sns_post=x_stip_sns_post,
x_stip_sns_attachment_refs=x_stip_sns_attachment_refs,
x_stip_sns_object_ref=x_stip_sns_object_ref,
x_stip_sns_tags=x_stip_sns_tags,
x_stip_sns_indicators=x_stip_sns_indicators,
x_stip_sns_identity=x_stip_sns_identity,
x_stip_sns_tool=x_stip_sns_tool)
report_object_refs.append(stip_sns)
bundle.objects.append(stip_sns)
# ReportObject
published = format_stix2_datetime(datetime.datetime.now(tz=pytz.utc))
report = Report(lang=common_lang,
granular_markings=granular_markings,
object_marking_refs=[tlp_marking_object],
name=title,
description=content,
created_by_ref=individual_identity,
published=published,
report_types=['threat-report'],
object_refs=report_object_refs)
bundle.objects.append(report)
# language-content 作成
if granular_markings is None:
# S-TIP オブジェクト用の language-content 作成
language_contents = _get_language_contents(stix2_titles,
stix2_contents)
if common_lang in language_contents:
del language_contents[common_lang]
if language_contents != {}:
s_tip_lc = LanguageContent(created_by_ref=individual_identity,
object_ref=stip_sns,
object_modified=stip_sns.created,
contents=language_contents)
bundle.objects.append(s_tip_lc)
# Report オブジェクト用の language-content 作成
report_lc = LanguageContent(object_ref=report,
created_by_ref=individual_identity,
object_modified=report.created,
contents=language_contents)
bundle.objects.append(report_lc)
return bundle
