Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
24-12-2021 18:10
Static task
static1
Behavioral task
behavioral1
Sample
730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe
Resource
win10-en-20211208
General
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Target
730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe
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Size
80KB
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MD5
5fe6daa399b18058f9b7e58fe31b4131
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SHA1
1ed39024b03b3490049b4d6f2577ca36e18b405a
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SHA256
730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4
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SHA512
31baf91130c7e932068e12fec6dfde7ad283487b9f01b92e64835cf91aba1c4f51602066994a8200b73d219e6ea82929cde1f11ca82fb2a48af90418e57e324c
Malware Config
Extracted
C:\y2VGe3tGZ.README.txt
blackmatter
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/S2A4H6RGPHHLU1IJRLNTN
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 19 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\BlockSkip.crw => C:\Users\Admin\Pictures\BlockSkip.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\BlockSkip.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\UnprotectSubmit.crw => C:\Users\Admin\Pictures\UnprotectSubmit.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\UpdateUninstall.tif.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\BlockSync.png => C:\Users\Admin\Pictures\BlockSync.png.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\ExpandUnlock.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\MountLimit.png => C:\Users\Admin\Pictures\MountLimit.png.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\GrantReceive.tiff 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\GrantReceive.tiff => C:\Users\Admin\Pictures\GrantReceive.tiff.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\MountLimit.png.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\SetExit.crw => C:\Users\Admin\Pictures\SetExit.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\UnprotectSubmit.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\UpdateUninstall.tif => C:\Users\Admin\Pictures\UpdateUninstall.tif.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\BlockSync.png.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\ExpandUnlock.crw => C:\Users\Admin\Pictures\ExpandUnlock.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\GrantReceive.tiff.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\SetExit.crw.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File renamed C:\Users\Admin\Pictures\TestConfirm.tif => C:\Users\Admin\Pictures\TestConfirm.tif.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe File opened for modification C:\Users\Admin\Pictures\TestConfirm.tif.y2VGe3tGZ 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\y2VGe3tGZ.bmp" 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\y2VGe3tGZ.bmp" 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe -
Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\International 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\WallpaperStyle = "10" 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeDebugPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: 36 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeImpersonatePrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeIncBasePriorityPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeIncreaseQuotaPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: 33 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeManageVolumePrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeProfSingleProcessPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeRestorePrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeSecurityPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeSystemProfilePrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeTakeOwnershipPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeShutdownPrivilege 1608 730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe Token: SeBackupPrivilege 668 vssvc.exe Token: SeRestorePrivilege 668 vssvc.exe Token: SeAuditPrivilege 668 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.bin.exe"C:\Users\Admin\AppData\Local\Temp\730f2d6243055c786d737bae0665267b962c64f57132e9ab401d6e7625c3d0a4.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
PID:1608
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:668