blackmatter | f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884

General

Target
f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Size 78KB
Sample210830-87hen5tppa
SHA256 f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884
MD5 ead753c057b5c3888ed2484013400b82
SHA1 e7de753b9f1e4e771f51f9dc044628288ea831bd
SHA512 fd6e2a1ddc79d313b12f84f1df91d45b3972b825e153dfc62fd02d4fb9af72c4a0d1d05fcd141ab21232c7e72c0571562533c418bff7233206c89309f623b564
MD5 SHA1 SHA512

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

\??\Z:\UCzUExPUL.README.txt

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What data stolen? From your network was stolen 750 GB of data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. Blog post link: http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/xscSyb9oue/b2ec5065190ebe423b201a9f2af97bb7 >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OR7OTLBK8D5UVHZ0Q >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/xscSyb9oue/b2ec5065190ebe423b201a9f2af97bb7
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OR7OTLBK8D5UVHZ0Q

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter

Modifies extensions of user files 22 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\EnterCopy.crw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\JoinPush.crw => C:\Users\Admin\Pictures\JoinPush.crw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\JoinPush.crw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\MoveOpen.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\ResetCompress.png => C:\Users\Admin\Pictures\ResetCompress.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\CheckpointClear.png => C:\Users\Admin\Pictures\CheckpointClear.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\EnterCopy.crw => C:\Users\Admin\Pictures\EnterCopy.crw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\HideGrant.raw => C:\Users\Admin\Pictures\HideGrant.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\LimitPing.png => C:\Users\Admin\Pictures\LimitPing.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\MoveOpen.raw => C:\Users\Admin\Pictures\MoveOpen.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\ResizeWrite.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\DismountFind.png => C:\Users\Admin\Pictures\DismountFind.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\HideGrant.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\LimitPing.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\ResetCompress.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\UseOut.tif.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\CheckpointClear.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\DisableRegister.tif => C:\Users\Admin\Pictures\DisableRegister.tif.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\DisableRegister.tif.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File opened for modification	C:\Users\Admin\Pictures\DismountFind.png.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\ResizeWrite.raw => C:\Users\Admin\Pictures\ResizeWrite.raw.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
File renamed	C:\Users\Admin\Pictures\UseOut.tif => C:\Users\Admin\Pictures\UseOut.tif.UCzUExPUL	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Z:	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\UCzUExPUL.bmp"	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\UCzUExPUL.bmp"	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallpaperStyle = "10"	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeDebugPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: 36	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeImpersonatePrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeIncBasePriorityPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeIncreaseQuotaPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: 33	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeManageVolumePrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeProfSingleProcessPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeRestorePrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeSecurityPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeSystemProfilePrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeTakeOwnershipPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeShutdownPrivilege	4648	f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
Token: SeBackupPrivilege	3224	vssvc.exe
Token: SeRestorePrivilege	3224	vssvc.exe
Token: SeAuditPrivilege	3224	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.exe
"C:\Users\Admin\AppData\Local\Temp\f7b3da61cb6a37569270554776dbbd1406d7203718c0419c922aa393c07e9884.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:4648