Analysis
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max time kernel
155s -
max time network
158s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
29-01-2022 20:51
Static task
static1
Behavioral task
behavioral1
Sample
2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe
Resource
win10-en-20211208
General
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Target
2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe
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Size
80KB
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MD5
5c66cd4f21254f83663819138e634dd9
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SHA1
6626cae85970e6490b8b0bf9da9aa4b57a79bb62
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SHA256
2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c
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SHA512
093e1fb491d73ee240f1b0084bda233ef272618b56e61ed8602a57dec7b241b3f80a4a1749ff46d141399e71dd6127c9a8893c9d8d24c6aa48b0479a7ab42a2a
Malware Config
Extracted
C:\uR7ZOTnZH.README.txt
blackmatter
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/EWX33VYY3IGOXSG5ZZ2
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 27 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\PingSync.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\SendGrant.png.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\FormatRegister.crw => C:\Users\Admin\Pictures\FormatRegister.crw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\GetCompress.raw => C:\Users\Admin\Pictures\GetCompress.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\InstallConfirm.tiff 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\OptimizeDeny.png => C:\Users\Admin\Pictures\OptimizeDeny.png.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\WriteLimit.raw => C:\Users\Admin\Pictures\WriteLimit.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\AssertRemove.raw => C:\Users\Admin\Pictures\AssertRemove.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\AssertRemove.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\InstallConfirm.tiff => C:\Users\Admin\Pictures\InstallConfirm.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\InstallConfirm.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\PingSync.tiff => C:\Users\Admin\Pictures\PingSync.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\UninstallWatch.raw => C:\Users\Admin\Pictures\UninstallWatch.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\GetCompress.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\PingSync.tiff 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\UnlockLimit.tif.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\WriteJoin.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\EnterEdit.raw => C:\Users\Admin\Pictures\EnterEdit.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\FormatRegister.crw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\WriteJoin.tiff => C:\Users\Admin\Pictures\WriteJoin.tiff.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\WriteLimit.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\OptimizeDeny.png.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\SendGrant.png => C:\Users\Admin\Pictures\SendGrant.png.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File renamed C:\Users\Admin\Pictures\UnlockLimit.tif => C:\Users\Admin\Pictures\UnlockLimit.tif.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\WriteJoin.tiff 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\EnterEdit.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe File opened for modification C:\Users\Admin\Pictures\UninstallWatch.raw.uR7ZOTnZH 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\uR7ZOTnZH.bmp" 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\uR7ZOTnZH.bmp" 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe -
Modifies Control Panel 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\WallpaperStyle = "10" 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Key created \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\International 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Key created \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeDebugPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: 36 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeImpersonatePrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeIncBasePriorityPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeIncreaseQuotaPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: 33 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeManageVolumePrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeProfSingleProcessPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeRestorePrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeSecurityPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeSystemProfilePrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeTakeOwnershipPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeShutdownPrivilege 3900 2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe Token: SeBackupPrivilege 2852 vssvc.exe Token: SeRestorePrivilege 2852 vssvc.exe Token: SeAuditPrivilege 2852 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.exe"C:\Users\Admin\AppData\Local\Temp\2aad85dbd4c79bd21c6218892552d5c9fb216293a251559ba59d45d56a01437c.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:3900
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2852