Analysis
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max time kernel
98s -
max time network
103s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
05-10-2021 12:34
Static task
static1
Behavioral task
behavioral1
Sample
2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Resource
win10v20210408
General
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Target
2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
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Size
79KB
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MD5
f1c260c31b9d3f9ff54a142d508ec602
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SHA1
6b25c80e8b2dca94ea6b6a95745a496ec0bcabd3
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SHA256
2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c
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SHA512
9412a185d008ded02e2061cd4e998222071923f6260ecdcc9a3f1969ea2aa89a9493866e13450d82b8ab390ec78b24d7ba82a6e2618d11cf27d67f43a7d39d6a
Malware Config
Extracted
\??\Z:\UCzUExPUL.README.txt
blackmatter
https://prnt.sc/1o6e5a2
https://prnt.sc/1o6ei7g
https://prnt.sc/1o6exr8
https://prnt.sc/1o6fbxu
https://prnt.sc/1o6fvkn
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/EBVCVJNCPM6A3NKJ
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 Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
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Modifies extensions of user files 18 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\ReceiveConvert.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\SaveUnblock.tif.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\ShowLimit.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\ReceiveConvert.png => C:\Users\Admin\Pictures\ReceiveConvert.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\ClearMeasure.tiff.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\CompressCheckpoint.tiff.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\EnterRead.png => C:\Users\Admin\Pictures\EnterRead.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\ClearMeasure.tiff => C:\Users\Admin\Pictures\ClearMeasure.tiff.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\CompressCheckpoint.tiff => C:\Users\Admin\Pictures\CompressCheckpoint.tiff.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\EnterRead.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\PublishPush.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\SaveUnblock.tif => C:\Users\Admin\Pictures\SaveUnblock.tif.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\ShowLimit.png => C:\Users\Admin\Pictures\ShowLimit.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\SkipGet.crw.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\ClearMeasure.tiff 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\PublishPush.png => C:\Users\Admin\Pictures\PublishPush.png.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File renamed C:\Users\Admin\Pictures\SkipGet.crw => C:\Users\Admin\Pictures\SkipGet.crw.UCzUExPUL 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe File opened for modification C:\Users\Admin\Pictures\CompressCheckpoint.tiff 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Z: 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\UCzUExPUL.bmp" 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\UCzUExPUL.bmp" 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallpaperStyle = "10" 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeDebugPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: 36 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeImpersonatePrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeIncBasePriorityPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeIncreaseQuotaPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: 33 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeManageVolumePrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeProfSingleProcessPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeRestorePrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeSecurityPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeSystemProfilePrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeTakeOwnershipPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeShutdownPrivilege 4796 2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe Token: SeBackupPrivilege 4896 vssvc.exe Token: SeRestorePrivilege 4896 vssvc.exe Token: SeAuditPrivilege 4896 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe"C:\Users\Admin\AppData\Local\Temp\2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.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:4796
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4896