Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
23-11-2021 11:10
Static task
static1
Behavioral task
behavioral1
Sample
3.bin.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
3.bin.exe
Resource
win10-en-20211104
General
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Target
3.bin.exe
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Size
67KB
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MD5
d0512f2063cbd79fb0f770817cc81ab3
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SHA1
e324a2c8fae0d26b12f00ac859340f8d9945a9c1
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SHA256
7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984
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SHA512
a62cecdf8887e426332d56914dfe03780402a34896ffe7a3a932986832db7080e599db32bb2113238443750227a50de84ae36c6811993c43b7eee8b1a018d641
Malware Config
Extracted
C:\gawreXkrr.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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suricata: ET MALWARE BlackMatter CnC Activity
suricata: ET MALWARE BlackMatter CnC Activity
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
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Modifies extensions of user files 16 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
3.bin.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\RemoveWrite.tiff 3.bin.exe File renamed C:\Users\Admin\Pictures\RemoveWrite.tiff => C:\Users\Admin\Pictures\RemoveWrite.tiff.gawreXkrr 3.bin.exe File renamed C:\Users\Admin\Pictures\SearchTrace.raw => C:\Users\Admin\Pictures\SearchTrace.raw.gawreXkrr 3.bin.exe File renamed C:\Users\Admin\Pictures\SearchWatch.tiff => C:\Users\Admin\Pictures\SearchWatch.tiff.gawreXkrr 3.bin.exe File renamed C:\Users\Admin\Pictures\MeasureLock.crw => C:\Users\Admin\Pictures\MeasureLock.crw.gawreXkrr 3.bin.exe File renamed C:\Users\Admin\Pictures\RegisterSkip.png => C:\Users\Admin\Pictures\RegisterSkip.png.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\RemoveWrite.tiff.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\SendConvertTo.tif.gawreXkrr 3.bin.exe File renamed C:\Users\Admin\Pictures\SendConvertTo.tif => C:\Users\Admin\Pictures\SendConvertTo.tif.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\MeasureLock.crw.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\RegisterSkip.png.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\SearchTrace.raw.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\SearchWatch.tiff 3.bin.exe File renamed C:\Users\Admin\Pictures\MountRemove.crw => C:\Users\Admin\Pictures\MountRemove.crw.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\MountRemove.crw.gawreXkrr 3.bin.exe File opened for modification C:\Users\Admin\Pictures\SearchWatch.tiff.gawreXkrr 3.bin.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
3.bin.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\gawreXkrr.bmp" 3.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\gawreXkrr.bmp" 3.bin.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
Processes:
3.bin.exepid process 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe -
Modifies Control Panel 3 IoCs
Processes:
3.bin.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\International 3.bin.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop 3.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "10" 3.bin.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
3.bin.exepid process 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe 1408 3.bin.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
3.bin.exevssvc.exedescription pid process Token: SeBackupPrivilege 1408 3.bin.exe Token: SeDebugPrivilege 1408 3.bin.exe Token: 36 1408 3.bin.exe Token: SeImpersonatePrivilege 1408 3.bin.exe Token: SeIncBasePriorityPrivilege 1408 3.bin.exe Token: SeIncreaseQuotaPrivilege 1408 3.bin.exe Token: 33 1408 3.bin.exe Token: SeManageVolumePrivilege 1408 3.bin.exe Token: SeProfSingleProcessPrivilege 1408 3.bin.exe Token: SeRestorePrivilege 1408 3.bin.exe Token: SeSecurityPrivilege 1408 3.bin.exe Token: SeSystemProfilePrivilege 1408 3.bin.exe Token: SeTakeOwnershipPrivilege 1408 3.bin.exe Token: SeShutdownPrivilege 1408 3.bin.exe Token: SeBackupPrivilege 484 vssvc.exe Token: SeRestorePrivilege 484 vssvc.exe Token: SeAuditPrivilege 484 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3.bin.exe"C:\Users\Admin\AppData\Local\Temp\3.bin.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1408-55-0x0000000075C51000-0x0000000075C53000-memory.dmpFilesize
8KB
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memory/1408-56-0x00000000009A5000-0x00000000009B6000-memory.dmpFilesize
68KB
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memory/1408-57-0x00000000009A0000-0x00000000009A1000-memory.dmpFilesize
4KB
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memory/1408-58-0x00000000009B6000-0x00000000009B7000-memory.dmpFilesize
4KB