Analysis
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max time kernel
101s -
max time network
134s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
18-08-2021 15:42
Static task
static1
Behavioral task
behavioral1
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
Resource
win10v20210410
General
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Target
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
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Size
67KB
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MD5
598c53bfef81e489375f09792e487f1a
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SHA1
80a29bd2c349a8588edf42653ed739054f9a10f5
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SHA256
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6
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SHA512
6a82ad5009588d2fa343bef8d9d2a02e2e76eec14979487a929a96a6b6965e82265a69ef8dd29a01927e9713468de3aedd7b5ee5e79839a1a50649855a160c35
Malware Config
Extracted
C:\tgln8vJnC.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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Modifies extensions of user files 9 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\ExportReceive.tiff 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File renamed C:\Users\Admin\Pictures\ExportReceive.tiff => C:\Users\Admin\Pictures\ExportReceive.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File opened for modification C:\Users\Admin\Pictures\MeasureUpdate.tiff 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File opened for modification C:\Users\Admin\Pictures\UndoRead.tiff 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File renamed C:\Users\Admin\Pictures\UndoRead.tiff => C:\Users\Admin\Pictures\UndoRead.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File opened for modification C:\Users\Admin\Pictures\UndoRead.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File opened for modification C:\Users\Admin\Pictures\ExportReceive.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File renamed C:\Users\Admin\Pictures\MeasureUpdate.tiff => C:\Users\Admin\Pictures\MeasureUpdate.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe File opened for modification C:\Users\Admin\Pictures\MeasureUpdate.tiff.tgln8vJnC 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\tgln8vJnC.bmp" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\tgln8vJnC.bmp" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Control Panel\International 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Control Panel\Desktop 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Control Panel\Desktop\WallpaperStyle = "10" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeDebugPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: 36 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeImpersonatePrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeIncBasePriorityPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeIncreaseQuotaPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: 33 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeManageVolumePrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeProfSingleProcessPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeRestorePrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeSecurityPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeSystemProfilePrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeTakeOwnershipPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeShutdownPrivilege 1080 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeBackupPrivilege 568 vssvc.exe Token: SeRestorePrivilege 568 vssvc.exe Token: SeAuditPrivilege 568 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe"C:\Users\Admin\AppData\Local\Temp\22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.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
PID:1080
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:568