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43 lines
1.7 KiB
YAML
43 lines
1.7 KiB
YAML
title: SOURGUM Actor Behaviours
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id: 7ba08e95-1e0b-40cd-9db5-b980555e42fd
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description: Suspicious behaviours related to an actor tracked by Microsoft as SOURGUM
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author: MSTIC, FPT.EagleEye
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status: experimental
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level: high
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references:
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- https://www.virustotal.com/gui/file/c299063e3eae8ddc15839767e83b9808fd43418dc5a1af7e4f44b97ba53fbd3d/detection
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- https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/SOURGUM_IOC.yaml
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- https://www.microsoft.com/security/blog/2021/07/15/protecting-customers-from-a-private-sector-offensive-actor-using-0-day-exploits-and-devilstongue-malware/
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date: 2021/06/15
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modified: 2021/07/30
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tags:
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- attack.t1546
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- attack.t1546.015
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- attack.persistence
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- attack.privilege_escalation
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logsource:
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product: windows
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category: process_creation
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detection:
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selection1:
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Image|contains: 'windows\system32\Physmem.sys'
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selection2:
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Image|contains:
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- 'Windows\system32\ime\SHARED\WimBootConfigurations.ini'
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- 'Windows\system32\ime\IMEJP\WimBootConfigurations.ini'
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- 'Windows\system32\ime\IMETC\WimBootConfigurations.ini'
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selection3:
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Image|contains:
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- 'windows\system32\filepath2'
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- 'windows\system32\ime'
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registry_command:
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CommandLine|contains:
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- 'reg add'
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registry_key:
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CommandLine|contains:
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- 'HKEY_LOCAL_MACHINE\software\classes\clsid\{7c857801-7381-11cf-884d-00aa004b2e24}\inprocserver32'
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- 'HKEY_LOCAL_MACHINE\software\classes\clsid\{cf4cc405-e2c5-4ddd-b3ce-5e7582d8c9fa}\inprocserver32'
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condition: selection1 or selection2 or (selection3 and registry_command and registry_key)
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falsepositives:
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- Unknown
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