blackmatter | b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f

General

Target

b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Size

72KB
MD5

1dd464cbb3fbd6881eef3f05b8b1fbd5
SHA1

cafd8d20f2abaebbbfc367b4b4512107362f3758
SHA256

b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f
SHA512

1564fffe28c2b7c2b18c35d68e3e254106620b2c3b7b5f41b95cfbb3a2cf0d9c42616d670b4060d09129ff18f0148c03e00bbd205f9d10697b265109a43d053c

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\AVx2lZV2X.README.txt

Family

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> Hello B&G International >>> 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 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/RSW33BDOYPLWM78U9A09BZDI >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/RSW33BDOYPLWM78U9A09BZDI

Signatures

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

Modifies extensions of user files 19 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ConvertToExit.png => C:\Users\Admin\Pictures\ConvertToExit.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\JoinConfirm.png => C:\Users\Admin\Pictures\JoinConfirm.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\StartUpdate.raw => C:\Users\Admin\Pictures\StartUpdate.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\ApproveSubmit.crw => C:\Users\Admin\Pictures\ApproveSubmit.crw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\BackupInvoke.raw => C:\Users\Admin\Pictures\BackupInvoke.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertToExit.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\HideEdit.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\JoinConfirm.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\NewCompare.tiff	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\ApproveSubmit.crw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\ExitExport.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\HideEdit.png => C:\Users\Admin\Pictures\HideEdit.png.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\NewCompare.tiff.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\WriteCopy.raw => C:\Users\Admin\Pictures\WriteCopy.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\BackupInvoke.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\ExitExport.raw => C:\Users\Admin\Pictures\ExitExport.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File renamed	C:\Users\Admin\Pictures\NewCompare.tiff => C:\Users\Admin\Pictures\NewCompare.tiff.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\StartUpdate.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
File opened for modification	C:\Users\Admin\Pictures\WriteCopy.raw.AVx2lZV2X	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.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:	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.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-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\AVx2lZV2X.bmp"	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\AVx2lZV2X.bmp"	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallpaperStyle = "10"	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeDebugPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: 36	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeImpersonatePrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeIncBasePriorityPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeIncreaseQuotaPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: 33	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeManageVolumePrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeProfSingleProcessPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeRestorePrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeSecurityPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeSystemProfilePrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeTakeOwnershipPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeShutdownPrivilege	2136	b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
Token: SeBackupPrivilege	2708	vssvc.exe
Token: SeRestorePrivilege	2708	vssvc.exe
Token: SeAuditPrivilege	2708	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.exe
"C:\Users\Admin\AppData\Local\Temp\b824bbc645f15e213b4cb2628f7d383e9e37282059b03f6fe60f7c84ea1fed1f.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:2136

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

memory/2136-115-0x0000000000F33000-0x0000000000F35000-memory.dmp

Filesize
8KB

Download
memory/2136-116-0x0000000000F30000-0x0000000000F31000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing