Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
21-09-2021 13:18
Static task
static1
Behavioral task
behavioral1
Sample
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
Resource
win10-en-20210920
General
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Target
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
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Size
81KB
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MD5
5a8491587ab0f96ba141ae59365bc911
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SHA1
1ab2fac4f2dc92893a9f89fc6621f66bd47cb783
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SHA256
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2
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SHA512
97e760f60e4db99983d05db69776058cf2f2c5ab98adea76000001a94a24f3b23feee4464baa23cf49dfa017e331c3b8b19c9da5b696f961f63cd65fc864c5c7
Malware Config
Extracted
C:\AVx2lZV2X.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/A9K0IM6DK7ILWAV908R3
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 10 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\PublishApprove.tiff 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\PublishApprove.tiff => C:\Users\Admin\Pictures\PublishApprove.tiff.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\PublishApprove.tiff.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SkipSplit.tiff 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\CheckpointPush.crw => C:\Users\Admin\Pictures\CheckpointPush.crw.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\CheckpointPush.crw.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\SkipSplit.tiff => C:\Users\Admin\Pictures\SkipSplit.tiff.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SkipSplit.tiff.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\SkipDismount.crw => C:\Users\Admin\Pictures\SkipDismount.crw.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SkipDismount.crw.AVx2lZV2X 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exedescription ioc process File opened (read-only) \??\Z: 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\AVx2lZV2X.bmp" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\AVx2lZV2X.bmp" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exepid process 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Modifies Control Panel 3 IoCs
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallpaperStyle = "10" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\International 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exepid process 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exevssvc.exedescription pid process Token: SeBackupPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeDebugPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: 36 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeImpersonatePrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeIncBasePriorityPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeIncreaseQuotaPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: 33 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeManageVolumePrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeProfSingleProcessPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeRestorePrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeSecurityPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeSystemProfilePrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeTakeOwnershipPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeShutdownPrivilege 2412 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeBackupPrivilege 3784 vssvc.exe Token: SeRestorePrivilege 3784 vssvc.exe Token: SeAuditPrivilege 3784 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe"C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2412
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3784