def to_stix(infile): """Converts the `infile` OpenIOC xml document into a STIX Package. Args: infile: OpenIOC xml filename to translate Returns: stix.core.STIXPackage object """ observables = to_cybox(infile) # Build Indicators from the Observable objects indicators = [_observable_to_indicator_stix(o) for o in observables] # Wrap the created Observables in a STIX Package/Indicator stix_package = STIXPackage() # Set the Indicators collection stix_package.indicators = indicators # Create and write the STIX Header. Warning: these fields have been # deprecated in STIX v1.2! stix_header = STIXHeader() stix_header.package_intent = PackageIntent.TERM_INDICATORS_MALWARE_ARTIFACTS stix_header.description = "CybOX-represented Indicators Translated from OpenIOC File" stix_package.stix_header = stix_header return stix_package
def to_stix(infile): """Converts the `infile` OpenIOC xml document into a STIX Package. Args: infile: OpenIOC xml filename to translate Returns: stix.core.STIXPackage object """ observables = to_cybox(infile) # Build Indicators from the Observable objects indicators = [_observable_to_indicator_stix(o) for o in observables] # Wrap the created Observables in a STIX Package/Indicator stix_package = STIXPackage() # Set the Indicators collection stix_package.indicators = Indicators(indicators) # Create and write the STIX Header. Warning: these fields have been # deprecated in STIX v1.2! stix_header = STIXHeader() stix_header.package_intent = PackageIntent.TERM_INDICATORS_MALWARE_ARTIFACTS stix_header.description = "CybOX-represented Indicators Translated from OpenIOC File" stix_package.stix_header = stix_header return stix_package
def main(): stix_package = STIXPackage() ttp = TTP(title="Phishing") stix_package.add_ttp(ttp) # Create the indicator for just the subject email_subject_object = EmailMessage() email_subject_object.header = EmailHeader() email_subject_object.header.subject = "[IMPORTANT] Please Review Before" email_subject_object.header.subject.condition = "StartsWith" email_subject_indicator = Indicator() email_subject_indicator.title = "Malicious E-mail Subject Line" email_subject_indicator.add_indicator_type("Malicious E-mail") email_subject_indicator.observable = email_subject_object email_subject_indicator.confidence = "Low" # Create the indicator for just the attachment file_attachment_object = EmailMessage() file_attachment_object.attachments = Attachments() attached_file_object = File() attached_file_object.file_name = "Final Report" attached_file_object.file_name.condition = "StartsWith" attached_file_object.file_extension = "doc.exe" attached_file_object.file_extension.condition = "Equals" file_attachment_object.add_related(attached_file_object, "Contains", inline=True) file_attachment_object.attachments.append(file_attachment_object.parent.id_) indicator_attachment = Indicator() indicator_attachment.title = "Malicious E-mail Attachment" indicator_attachment.add_indicator_type("Malicious E-mail") indicator_attachment.observable = file_attachment_object indicator_attachment.confidence = "Low" # Create the combined indicator w/ both subject an attachment full_email_object = EmailMessage() full_email_object.attachments = Attachments() # Add the previously referenced file as another reference rather than define it again: full_email_object.attachments.append(file_attachment_object.parent.id_) full_email_object.header = EmailHeader() full_email_object.header.subject = "[IMPORTANT] Please Review Before" full_email_object.header.subject.condition = "StartsWith" combined_indicator = Indicator(title="Malicious E-mail") combined_indicator.add_indicator_type("Malicious E-mail") combined_indicator.confidence = Confidence(value="High") combined_indicator.observable = full_email_object email_subject_indicator.add_indicated_ttp(TTP(idref=ttp.id_)) indicator_attachment.add_indicated_ttp(TTP(idref=ttp.id_)) combined_indicator.add_indicated_ttp(TTP(idref=ttp.id_)) stix_package.indicators = [combined_indicator, email_subject_indicator, indicator_attachment] print stix_package.to_xml()
def genStixDoc( outputDir_, targetFileSha1_, targetFileSha256_, targetFileSha512_, targetFileSsdeep_, targetFileMd5_, targetFileSize_, targetFileName_, ipv4Addresses_, hostNames_): """ Generate Stix document from the input values. The doc structure is the file object along with the related network items: addresses, domain names. Output is written to files, which are then wrapped with taxii and uploaded using a separate script. """ parsedTargetFileName = reFileName(targetFileName_)[1] parsedTargetFilePrefix = reFileName(targetFileName_)[0] stix.utils.set_id_namespace({"http://www.equifax.com/cuckoo2Stix" : "cuckoo2Stix"}) NS = cybox.utils.Namespace("http://www.equifax.com/cuckoo2Stix", "cuckoo2Stix") cybox.utils.set_id_namespace(NS) stix_package = STIXPackage() stix_header = STIXHeader() stix_header.title = 'File: ' + parsedTargetFileName + ' with the associated hashes, network indicators' stix_header.description = 'File: ' + parsedTargetFileName + ' with the associated hashes, network indicators' stix_package.stix_header = stix_header # Create the ttp malware_instance = MalwareInstance() malware_instance.add_name(parsedTargetFileName) malware_instance.description = targetFileSha1_ ttp = TTP(title='TTP: ' + parsedTargetFileName) ttp.behavior = Behavior() ttp.behavior.add_malware_instance(malware_instance) stix_package.add_ttp(ttp) # Create the indicator for the ipv4 addresses ipv4Object = Address(ipv4Addresses_, Address.CAT_IPV4) ipv4Object.condition = 'Equals' ipv4Indicator = Indicator() ipv4Indicator.title = parsedTargetFileName + ': ipv4 addresses' ipv4Indicator.add_indicator_type('IP Watchlist') ipv4Indicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship='Indicates Malware')) ipv4Indicator.observable = ipv4Object ipv4Indicator.confidence = 'Low' # Create the indicator for the domain names domainNameObject = DomainName() domainNameObject.value = hostNames_ domainNameObject.condition = 'Equals' domainNameIndicator = Indicator() domainNameIndicator.title = parsedTargetFileName + ': domain names' domainNameIndicator.add_indicator_type('Domain Watchlist') domainNameIndicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship='Indicates Malware')) domainNameIndicator.observable = domainNameObject domainNameIndicator.confidence = 'Low' # Create the indicator for the file fileObject = File() fileObject.file_name = parsedTargetFileName fileObject.file_name.condition = 'Equals' fileObject.size_in_bytes = targetFileSize_ fileObject.size_in_bytes.condition = 'Equals' fileObject.add_hash(Hash(targetFileSha1_, type_='SHA1', exact=True)) fileObject.add_hash(Hash(targetFileSha256_, type_='SHA256', exact=True)) fileObject.add_hash(Hash(targetFileSha512_, type_='SHA512', exact=True)) fileObject.add_hash(Hash(targetFileSsdeep_, type_='SSDEEP', exact=True)) fileObject.add_hash(Hash(targetFileMd5_, type_='MD5', exact=True)) fileIndicator = Indicator() fileIndicator.title = parsedTargetFileName + ': hashes' fileIndicator.description = parsedTargetFilePrefix fileIndicator.add_indicator_type('File Hash Watchlist') fileIndicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship="Indicates Malware")) fileIndicator.observable = fileObject fileIndicator.confidence = 'Low' stix_package.indicators = [fileIndicator, ipv4Indicator, domainNameIndicator] stagedStixDoc = stix_package.to_xml() stagedStixDoc = fixAddressObject(stagedStixDoc) stagedStixDoc = fixDomainObject(stagedStixDoc) today = datetime.datetime.now() now = today.strftime('%Y-%m-%d_%H%M%S') if not os.path.exists(outputDir_): os.makedirs(outputDir_) with open (outputDir_ + '/' + now + '-' + targetFileSha1_ + '.stix.xml', 'a') as myfile: myfile.write(stagedStixDoc) _l.debug('Wrote file: ' + now + '-' + targetFileSha1_ + '.stix.xml') return
def genStixDoc( outputDir_, targetFileSha1_, targetFileSha256_, targetFileSha512_, targetFileSsdeep_, targetFileMd5_, targetFileSize_, targetFileName_, ipv4Addresses_, hostNames_): """ Generate Stix document from the input values. The doc structure is the file object along with the related network items: addresses, domain names. Output is written to files, which are then wrapped with taxii and uploaded using a separate script. """ parsedTargetFileName = reFileName(targetFileName_)[1] parsedTargetFilePrefix = reFileName(targetFileName_)[0] stix.utils.set_id_namespace({"http://www.equifax.com/cuckoo2Stix" : "cuckoo2Stix"}) NS = cybox.utils.Namespace("http://www.equifax.com/cuckoo2Stix", "cuckoo2Stix") cybox.utils.set_id_namespace(NS) stix_package = STIXPackage() stix_header = STIXHeader() stix_header.title = 'File: ' + parsedTargetFileName + ' with the associated hashes, network indicators' stix_header.description = 'File: ' + parsedTargetFileName + ' with the associated hashes, network indicators' stix_package.stix_header = stix_header # Create the ttp malware_instance = MalwareInstance() malware_instance.add_name(parsedTargetFileName) malware_instance.description = targetFileSha1_ ttp = TTP(title='TTP: ' + parsedTargetFileName) ttp.behavior = Behavior() ttp.behavior.add_malware_instance(malware_instance) stix_package.add_ttp(ttp) # Create the indicator for the ipv4 addresses ipv4Object = Address(ipv4Addresses_, Address.CAT_IPV4) ipv4Object.condition = 'Equals' ipv4Indicator = Indicator() ipv4Indicator.title = parsedTargetFileName + ': ipv4 addresses' ipv4Indicator.add_indicator_type('IP Watchlist') ipv4Indicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship='Indicates Malware')) ipv4Indicator.observable = ipv4Object ipv4Indicator.confidence = 'Low' # Create the indicator for the domain names domainNameObject = DomainName() domainNameObject.value = hostNames_ domainNameObject.condition = 'Equals' domainNameIndicator = Indicator() domainNameIndicator.title = parsedTargetFileName + ': domain names' domainNameIndicator.add_indicator_type('Domain Watchlist') domainNameIndicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship='Indicates Malware')) domainNameIndicator.observable = domainNameObject domainNameIndicator.confidence = 'Low' # Create the indicator for the file fileObject = File() fileObject.file_name = parsedTargetFileName fileObject.file_name.condition = 'Equals' fileObject.size_in_bytes = targetFileSize_ fileObject.size_in_bytes.condition = 'Equals' fileObject.add_hash(Hash(targetFileSha1_, type_='SHA1', exact=True)) fileObject.add_hash(Hash(targetFileSha256_, type_='SHA256', exact=True)) fileObject.add_hash(Hash(targetFileSha512_, type_='SHA512', exact=True)) fileObject.add_hash(Hash(targetFileSsdeep_, type_='SSDEEP', exact=True)) fileObject.add_hash(Hash(targetFileMd5_, type_='MD5', exact=True)) fileIndicator = Indicator() fileIndicator.title = parsedTargetFileName + ': hashes' fileIndicator.description = parsedTargetFilePrefix fileIndicator.add_indicator_type('File Hash Watchlist') fileIndicator.add_indicated_ttp(RelatedTTP(TTP(idref=ttp.id_), relationship="Indicates Malware")) fileIndicator.observable = fileObject fileIndicator.confidence = 'Low' stix_package.indicators = [fileIndicator, ipv4Indicator, domainNameIndicator] stagedStixDoc = stix_package.to_xml() stagedStixDoc = fixAddressObject(stagedStixDoc) stagedStixDoc = fixDomainObject(stagedStixDoc) today = datetime.datetime.now() now = today.strftime('%Y-%m-%d_%H%M%S') if not os.path.exists(outputDir_): os.makedirs(outputDir_) with open (outputDir_ + '/' + now + '-' + targetFileSha1_ + '.stix.xml', 'a') as myfile: myfile.write(stagedStixDoc) _l.debug('Wrote file: ' + now + '-' + targetFileSha1_ + '.stix.xml') return
def main(): stix_package = STIXPackage() ttp = TTP(title="Phishing") stix_package.add_ttp(ttp) # Create the indicator for just the subject email_subject_object = EmailMessage() email_subject_object.header = EmailHeader() email_subject_object.header.subject = "[IMPORTANT] Please Review Before" email_subject_object.header.subject.condition = "StartsWith" email_subject_indicator = Indicator() email_subject_indicator.title = "Malicious E-mail Subject Line" email_subject_indicator.add_indicator_type("Malicious E-mail") email_subject_indicator.observable = email_subject_object email_subject_indicator.confidence = "Low" # Create the indicator for just the attachment file_attachment_object = EmailMessage() file_attachment_object.attachments = Attachments() attached_file_object = File() attached_file_object.file_name = "Final Report" attached_file_object.file_name.condition = "StartsWith" attached_file_object.file_extension = "doc.exe" attached_file_object.file_extension.condition = "Equals" file_attachment_object.add_related(attached_file_object, "Contains", inline=True) file_attachment_object.attachments.append(attached_file_object.parent.id_) indicator_attachment = Indicator() indicator_attachment.title = "Malicious E-mail Attachment" indicator_attachment.add_indicator_type("Malicious E-mail") indicator_attachment.observable = file_attachment_object indicator_attachment.confidence = "Low" # Create the combined indicator w/ both subject an attachment full_email_object = EmailMessage() full_email_object.attachments = Attachments() # Add the previously referenced file as another reference rather than define it again: full_email_object.attachments.append(attached_file_object.parent.id_) full_email_object.header = EmailHeader() full_email_object.header.subject = "[IMPORTANT] Please Review Before" full_email_object.header.subject.condition = "StartsWith" combined_indicator = Indicator(title="Malicious E-mail") combined_indicator.add_indicator_type("Malicious E-mail") combined_indicator.confidence = Confidence(value="High") combined_indicator.observable = full_email_object email_subject_indicator.add_indicated_ttp(TTP(idref=ttp.id_)) indicator_attachment.add_indicated_ttp(TTP(idref=ttp.id_)) combined_indicator.add_indicated_ttp(TTP(idref=ttp.id_)) stix_package.indicators = [ combined_indicator, email_subject_indicator, indicator_attachment ] print stix_package.to_xml()