Analysis
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max time kernel
419s -
max time network
423s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
12-04-2023 17:51
Behavioral task
behavioral1
Sample
9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Resource
win7-20230220-en
General
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Target
9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
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Size
95KB
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MD5
757139e76fae876ae50dd2c3ac11d5d8
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SHA1
1c150493014d29c1f8a51e397e527f7d7c1476c7
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SHA256
9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58
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SHA512
852febe5dc991fa6dc5ff994b2de18548e98a2f53de903a480ed871d9d25413159b167a3c0ff39175bbf7c339604bb1eccc2f9425415ab16089bc56e3e998974
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SSDEEP
1536:5UICS4ADkFAztzRyxoWtBErqylVxn1fkGzyKJtM5w1w0:NBkwtdyxoUH4Blkij1
Malware Config
Extracted
C:\Users\seGgKiqg4.README.txt
blackmatter
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/U6H6RKDF6W3B8XOWL
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ExpandGet.png => C:\Users\Admin\Pictures\ExpandGet.png.seGgKiqg4 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe File opened for modification C:\Users\Admin\Pictures\ExpandGet.png.seGgKiqg4 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe File opened for modification C:\Users\Admin\Pictures\ShowGrant.tiff 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe File opened for modification C:\Users\Admin\Pictures\StopSet.tiff 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe File opened for modification C:\Users\Admin\Pictures\UpdateGet.tiff 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe -
Modifies Control Panel 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Control Panel\International 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\seGgKiqg4\DefaultIcon 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\seGgKiqg4 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\seGgKiqg4\DefaultIcon\ = "C:\\ProgramData\\seGgKiqg4.ico" 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.seGgKiqg4 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.seGgKiqg4\ = "seGgKiqg4" 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeDebugPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: 36 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeImpersonatePrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeIncBasePriorityPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeIncreaseQuotaPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: 33 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeManageVolumePrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeProfSingleProcessPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeRestorePrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeSecurityPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeSystemProfilePrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeTakeOwnershipPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeShutdownPrivilege 1048 9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe Token: SeBackupPrivilege 1680 vssvc.exe Token: SeRestorePrivilege 1680 vssvc.exe Token: SeAuditPrivilege 1680 vssvc.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe"C:\Users\Admin\AppData\Local\Temp\9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe"1⤵
- Modifies extensions of user files
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1048
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1680
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1KB
MD50842767cb65fc2fd8159fe4f2b718945
SHA1bff9ec531535e40e4f0f8365add7430d813ce035
SHA256ce9645e29fd75e2b99ad49c64d40a1fb8a5412d8a9a8cd438a64664cfed539e7
SHA512367d25b261a866a94d080e388b410485232cc00aee6862b01e164dbf0dac7f0182bf741aee95e5b7786dc6668e29fc604db3d12c17f802dc22361591dd435c7f