mirror of https://github.com/MISP/PyMISP
Raphaël Vinot
GitHub
commit
db768ffef0
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@ -1,4 +1,4 @@
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#!/usr/bin/env python
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import os
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@ -10,67 +10,136 @@ try:
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except ImportError:
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has_bs4 = False
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iocMispMapping = {
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#~ @Link https://wiki.ops.fr/doku.php/manuels:misp:event-guidelines
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'CookieHistoryItem/HostName': {'type': 'hostname', 'comment': 'CookieHistory.'},
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'DriverItem/DriverName': {'category': 'Artifacts dropped', 'type': 'other', 'comment': 'DriverName.'},
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'DriverItem/CertificateIssuer' : {'category': 'Artifacts dropped', 'type': 'other', 'comment': 'DriverCertificateIssuer.'},
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'DriverItem/DeviceItem/AttachedDeviceName' : {'category': 'Artifacts dropped','type': 'other', 'comment': 'DriverDeviceName. '},
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'DnsEntryItem/Host': {'type': 'domain'},
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'DnsEntryItem/RecordName' : {'type': 'domain'},
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'Email/To': {'type': 'target-email'},
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'Email/Date': {'type': 'comment', 'comment': 'EmailDate.'},
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# 'Email/Body': {'type': 'email-subject'},
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'Email/Body': {'type': 'email-subject'},
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'Email/From': {'type': 'email-dst'},
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'Email/Subject': {'type': 'email-subject'},
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'Email/Attachment/Name': {'type': 'email-attachment'},
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'FileItem/Md5sum' : {'type': 'md5'},
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'FileItem/Sha1sum' : {'type': 'sha1'},
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'FileItem/Sha256sum': {'type': 'sha256'},
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'ServiceItem/serviceDLLmd5sum': {'type': 'md5', 'category': 'Payload installation'},
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'ServiceItem/serviceDLLsha1sum': {'type': 'sha1', 'category': 'Payload installation'},
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'ServiceItem/serviceDLLsha256sum': {'type': 'sha256', 'category': 'Payload installation'},
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'TaskItem/md5sum': {'type': 'md5'},
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'TaskItem/sha1sum': {'type': 'sha1'},
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'TaskItem/Sha256sum': {'type': 'sha256'},
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'FileItem/FileName' : {'type': 'filename'},
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'FileItem/FullPath' : {'type': 'filename'},
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'FileItem/FilePath' : {'type': 'filename'},
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'DriverItem/DriverName': {'type': 'filename'},
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'FileItem/Sha256sum' : {'type': 'sha256'},
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'FileItem/DevicePath' : {'type': 'comment', 'comment': 'DevicePath. '},
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'FileItem/SizeInBytes' : {'type': 'size-in-bytes'},
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'FileItem/PEInfo/Type' : {'type': 'comment','comment': 'PE Type. '},
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'FileItem/FileExtension' : {'type': 'comment','comment': 'FileExtension. '},
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'FileItem/FilenameCreated' : {'type': 'filename', 'comment': 'FilenameCreated. '},
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'FileItem/StringList/string' : {'type': 'pattern-in-file', 'comment': 'string list. '},
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'FileItem/PEInfo/PETimeStamp' : {'type': 'pattern-in-file', 'comment': 'PE TimeStamp. '},
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'FileItem/PEInfo/Exports/DllName' : {'type': 'pattern-in-memory', 'comment': 'PE export DllName. '},
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'FileItem/PEInfo/Sections/Section/Name' : {'type': 'pattern-in-memory', 'comment': 'PE SectionName. '},
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'FileItem/PEInfo/DetectedAnomalies/string' : {'type': 'pattern-in-file', 'comment': 'PE DEtected AnomaliesString. '},
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'FileItem/PEInfo/Exports/NumberOfFunctions' : {'type': 'pattern-in-file', 'comment': 'PE Export NumberOfFunctions. '},
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'FileItem/PEInfo/ImportedModules/Module/Name' : {'type': 'pattern-in-file', 'comment': 'PE ImportedModulesName. '},
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'FileItem/PEInfo/DigitalSignature/Description' : {'type': 'comment', 'comment': 'PE DigitalSignatureDescription. '},
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'FileItem/PEInfo/DigitalSignature/SignatureExists' : {'type': 'comment','comment': 'PE SignatureExists. '},
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'FileItem/PEInfo/Exports/ExportedFunctions/string' : {'type': 'comment', 'comment': 'PE ExportedFunctions. '},
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'FileItem/PEInfo/DigitalSignature/CertificateIssuer' : {'type': 'comment', 'comment': 'PE SignatureCertificateIssuer. '},
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'FileItem/PEInfo/DigitalSignature/SignatureVerified' : {'type': 'comment', 'comment': 'PE SignatureVerified. '},
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'FileItem/PEInfo/DigitalSignature/CertificateSubject' : {'type': 'other', 'comment': 'PE CertificateDigitalSignatureSubject. '},
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'FileItem/PEInfo/ResourceInfoList/ResourceInfoItem/Name' : {'type': 'comment', 'comment': 'PE ResourceName. '},
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'FileItem/PEInfo/ResourceInfoList/ResourceInfoItem/Type' : {'type': 'comment', 'comment': 'PE ResourceType. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/Language' : {'type': 'pattern-in-file', 'comment': 'PE LanguageVersion. '},
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'FileItem/PEInfo/ResourceInfoList/ResourceInfoItem/Language' : {'type': 'pattern-in-file', 'comment': 'PE LanguageResource. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/CompanyName' : {'type': 'pattern-in-file','comment': 'PE versionInfo CompanyName. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/FileVersion' : {'type': 'pattern-in-file', 'comment': 'PE Version. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/ProductName' : {'type': 'pattern-in-file', 'comment': 'PE ProductName. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/InternalName' : {'type': 'pattern-in-file', 'comment': 'PE InternalName. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/LegalCopyright' : {'type': 'pattern-in-file', 'comment': 'PE LegalCopyright. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/ProductVersion' : {'type': 'pattern-in-file', 'comment': 'PE ProductVersion. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/FileDescription' : {'type': 'comment', 'comment': 'PE FileDescription .'},
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'FileItem/PEInfo/ImportedModules/Module/ImportedFunctions/string' : {'type': 'pattern-in-file', 'comment': 'PE ImportedModules. '},
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'FileItem/PEInfo/VersionInfoList/VersionInfoItem/OriginalFilename' : {'type': 'pattern-in-file', 'comment': 'OriginalFilename of PE. '},
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'FormHistoryItem/HostName': {'type': 'hostname', 'comment': 'FormHistory. '},
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'Network/URI' : {'type': 'uri'},
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'Network/DNS' : {'type': 'domain'},
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'Network/String': {'type': 'ip-dst'},
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'RouteEntryItem/Destination': {'type': 'ip-dst'},
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'Network/String' : {'type': 'url'},
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'Network/IPRange' : {'type': 'ip-dst'},
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'Network/UserAgent' : {'type': 'user-agent'},
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'PortItem/localIP' : {'type': 'ip-src'},
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'PortItem/remoteIP' : {'type': 'ip-dst'},
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'PortItem/remotePort' : {'type': 'pattern-in-traffic', 'comment': 'RemotePort. '},
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'ProcessItem/name' : {'type': 'pattern-in-memory', 'comment': 'ProcessName. '},
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'ProcessItem/path' : {'type': 'pattern-in-memory', 'comment': 'ProcessPath. '},
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'ProcessItem/Mutex': {'type': 'mutex'},
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'ProcessItem/Mutex' : {'type': 'mutex', 'comment': 'mutex'},
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'ProcessItem/arguments' : {'type': 'pattern-in-memory', 'comment': 'ProcessArguments. '},
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'ProcessItem/NamedPipe' : {'type': 'named pipe'},
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'ProcessItem/Pipe/Name' : {'type': 'named pipe'},
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'ProcessItem/Mutex/Name' : {'type': 'mutex', 'comment': 'MutexName. '},
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'ProcessItem/Event/Name' : {'type': 'pattern-in-memory', 'comment': 'ProcessEventName. '},
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'ProcessItem/StringList/string' : {'type': 'pattern-in-memory', 'comment': 'StringlistName. '},
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'ProcessItem/HandleList/Handle/Name' : {'type': 'pattern-in-memory', 'comment': 'ProcessHandleListName'},
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'ProcessItem/HandleList/Handle/Type' : {'type': 'pattern-in-memory', 'comment': 'ProcessHandleType'},
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'ProcessItem/SectionList/MemorySection/Name' : {'type': 'pattern-in-memory', 'comment': 'ProcessSectionMemoryName'},
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'ProcessItem/SectionList/MemorySection/PEInfo/Exports/DllName' : {'type': 'pattern-in-memory', 'comment': 'ProcessMemoryPEExportsDllName'},
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'ProcessItem/SectionList/MemorySection/PEInfo/Sections/Section/Name' : {'type': 'pattern-in-memory', 'comment': 'Section name from PE in process memory section'},
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'CookieHistoryItem/HostName': {'type': 'hostname'},
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'FormHistoryItem/HostName': {'type': 'hostname'},
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'SystemInfoItem/HostName': {'type': 'hostname'},
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'UrlHistoryItem/HostName': {'type': 'hostname'},
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'DnsEntryItem/RecordName': {'type': 'hostname'},
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'DnsEntryItem/Host': {'type': 'hostname'},
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'RegistryItem/Text' : {'type': 'regkey', 'comment': 'RegistryText. '},
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'RegistryItem/Path' : {'type': 'regkey', 'comment': 'RegistryPath. '},
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'RegistryItem/Value' : {'type': 'regkey', 'comment': 'RegistryValue. '},
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'RegistryItem/KeyPath' : {'type': 'regkey', 'comment': 'RegistryKeyPath. '},
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'RegistryItem/ValueName' : {'type': 'regkey', 'comment': 'RegistryValueName. '},
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'RouteEntryItem/Destination': {'type': 'ip-dst'},
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'RouteEntryItem/Destination/IP' : {'type': 'ip-dst', 'comment': 'RouteDestination. '},
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'RouteEntryItem/Destination/string' : {'type': 'url', 'comment': 'RouteDestination. '},
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# Is it the regkey value?
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# 'RegistryItem/Text': {'type': 'regkey', 'RegistryText. '},
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'RegistryItem/KeyPath': {'type': 'regkey'},
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'RegistryItem/Path': {'type': 'regkey'},
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'ServiceItem/name' : {'type': 'windows-service-name'},
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'ServiceItem/type' : {'type': 'pattern-in-memory', 'comment': 'ServiceType. '},
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'ServiceItem/startedAs' : {'type': 'pattern-in-memory', 'comment': 'ServiceStartedAs. '},
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'ServiceItem/serviceDLL' : {'type': 'pattern-in-memory', 'comment': 'ServiceDll. '},
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'ServiceItem/description' : {'type': 'comment', 'comment': 'ServiceDescription. '},
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'ServiceItem/descriptiveName' : {'type': 'windows-service-displayname'},
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'ServiceItem/serviceDLLmd5sum': {'type': 'md5', 'comment': 'ServiceDLL. '},
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'ServiceItem/serviceDLLsha1sum': {'type': 'sha1', 'comment': 'ServiceDLL. '},
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'ServiceItem/serviceDLLsha256sum': {'type': 'sha256', 'comment': 'ServiceDLL. '},
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'ServiceItem/serviceDLLSignatureVerified' : {'type': 'pattern-in-memory', 'comment': 'ServiceDllSignatureVerified. '},
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'Snort/Snort' : {'type': 'snort'},
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'SystemInfoItem/HostName': {'type': 'hostname', 'comment': 'SystemInfo. '},
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'TaskItem/Name' : {'type': 'windows-scheduled-task', 'comment': 'TaskName. '},
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'TaskItem/sha1sum' : {'type': 'windows-scheduled-task', 'comment': 'TashSha1. '},
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'TaskItem/sha256sum' : {'type': 'windows-scheduled-task', 'comment': 'TashSha256. '},
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'TaskItem/AccountName' : {'type': 'windows-scheduled-task', 'comment': 'TaskAccountName'},
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'TaskItem/ActionList/Action/ExecProgramPath' : {'type': 'windows-scheduled-task', 'comment': 'TaskExecProgramPath. '},
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'TaskItem/TriggerList/Trigger/TriggerFrequency' : {'type': 'windows-scheduled-task', 'comment': 'TaskTriggerFrequency. '},
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'UrlHistoryItem/URL' : {'type': 'url','comment': 'UrlHistory. '},
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'UrlHistoryItem/HostName': {'type': 'hostname','comment': 'UrlHistory. '},
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'Yara/Yara' : {'type': 'yara'},
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# mapping for composite object
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# maybe later filename|sizeinbyte
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'FileItem/FileName|FileItem/Md5sum' : {'type': 'filename|md5'},
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'FileItem/FileName|FileItem/Sha1sum' : {'type': 'filename|sha1'},
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'FileItem/FileName|FileItem/Sha256sum' : {'type': 'filename|sha256'},
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'Network/DNS|PortItem/remoteIP' : {'type': 'domain|ip'},
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'PortItem/remoteIP|PortItem/remotePort' : {'comment': 'ip-dst|port'},
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'RegistryItem/Path|RegistryItem/Value' : {'type': 'regkey|value'},
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'RegistryItem/KeyPath|RegistryItem/Value' : {'type': 'regkey|value'},
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}
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@ -124,18 +193,107 @@ def get_mapping(openioc_type):
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return v
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return False
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def set_composite_values(value1, value2):
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attribute_values = {'comment': ''}
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# construct attribut composite type
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compositeMapping = value1.find('context')['search']+'|'+value2.find('context')['search']
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mapping = get_mapping(compositeMapping)
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if mapping:
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attribute_values.update(mapping)
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else:
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# prevent some mistake error
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attribute_values.update({'category': 'External analysis', 'type': 'other'})
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# construct attribut composite value
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compositeValue = value1.find('content').text + "|" +value2.find('content').text
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if compositeValue:
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attribute_values['value'] = compositeValue
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# construct composite comment
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compositeComment = ""
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if value1.find('comment'):
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compositeComment += value1.find('comment').text
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if value2.find('comment'):
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compositeComment += value2.find('comment').text
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attribute_values["comment"] = compositeComment
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return attribute_values
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def set_all_attributes(openioc, misp_event):
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processed = set()
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hashName = ["FileItem/Md5sum","FileItem/Sha1sum","FileItem/Sha256sum"]
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# check for composite item
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for composite in openioc.find_all("indicator", operator="AND"):
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# check for composite number under
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childs = composite.find_all('indicatoritem')
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if len(childs) == 2:
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childList = [child.find('context')['search'] for child in childs]
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if ('FileItem/FileName' in childList) and\
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(set(hashName) - set(childList) != set(hashName)):
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if childs[0].find('context')['search'] == 'FileItem/FileName':
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value1, value2 = childs[0], childs[1]
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else:
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value1, value2 = childs[1], childs[0]
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attribute_values = set_composite_values(value1, value2)
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misp_event.add_attribute(**attribute_values)
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processed.add(childs[0]['id'])
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processed.add(childs[1]['id'])
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elif ("Network/DNS" and "PortItem/RemoteIP") in childList:
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if childs[0].find('context')['search'] == 'Network/DNS':
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value1, value2 = childs[0], childs[1]
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else:
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value1, value2 = childs[1], childs[0]
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attribute_values = set_composite_values(value1, value2)
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misp_event.add_attribute(**attribute_values)
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processed.add(childs[0]['id'])
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processed.add(childs[1]['id'])
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elif ("PortItem/RemoteIP" and "PortItem/RemotePort") in childList:
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if childs[0].find('context')['search'] == 'PortItem/RemoteIP':
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value1, value2 = childs[0], childs[1]
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else:
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value1, value2 = childs[1], childs[0]
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attribute_values = set_composite_values(value1, value2)
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misp_event.add_attribute(**attribute_values)
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processed.add(childs[0]['id'])
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processed.add(childs[1]['id'])
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elif ("RegistryItem/Path" and "RegistryItem/Value") in childList:
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if childs[0].find('context')['search'] == 'RegistryItem/PathP':
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value1, value2 = childs[0], childs[1]
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else:
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value1, value2 = childs[1], childs[0]
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attribute_values = set_composite_values(value1, value2)
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misp_event.add_attribute(**attribute_values)
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processed.add(childs[0]['id'])
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processed.add(childs[1]['id'])
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for item in openioc.find_all("indicatoritem"):
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# check if id in processed list
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if item['id'] in processed:
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continue
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attribute_values = {'comment': ''}
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if item.find('context'):
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mapping = get_mapping(item.find('context')['search'])
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if mapping:
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attribute_values.update(mapping)
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else:
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# Unknown mapping, ignoring
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# print(item.find('context'))
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continue
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# Unknown mapping, assign to default
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attribute_values.update({'category': 'External analysis', 'type': 'other'})
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#continue
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else:
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continue
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value = extract_field(item, 'Content')
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@ -148,8 +306,22 @@ def set_all_attributes(openioc, misp_event):
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if comment:
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attribute_values["comment"] = '{} {}'.format(attribute_values["comment"], comment)
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# change value to composite
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# 127.0.0.1:80 ip-* to 127.0.0.1|80 ip-*|port
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if mapping['type'] in ['ip-src', 'ip-dst'] and value.count(':') == 1:
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attribute_values['type'] = mapping['type'] + '|port'
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attribute_values['value'] = attribute_values['value'].replace(':', '|')
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misp_event.add_attribute(**attribute_values)
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return misp_event
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if __name__ == '__main__':
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# test file for composite
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# https://github.com/fireeye/iocs/blob/master/BlogPosts/9cee306d-5441-4cd3-932d-f3119752634c.ioc
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x = open('test.ioc', 'r')
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mispEvent = load_openioc(x.read())
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#~ print(mispEvent._json_full())
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from pymisp import PyMISP
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misp = PyMISP('http://misp.local', 'xxxxx')
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r = misp.add_event(mispEvent)
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print(r)
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