blackmatter | f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1

General

Target

f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Size

66KB
MD5

62e9edb7e44dc3eecd59ad14f9324dff
SHA1

537f2f42c2aeef0134c2a32a84733796909f0f3e
SHA256

f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1
SHA512

93ed22604d2fac6ffb2002617a04bb7793c78cbb96fa79aead8ac4cb22ffffe8bd2ae7c7c7c026780eb3c5185af7cc534a3ed3238c05c73c9d4b21003729bd0c
SSDEEP

1536:jzICS4AT6GxdEe+TOdincJXvKvWLBjklE:8R7auJXSOhCE

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\OpA4hYU4k.README.txt

Family

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 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://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R

Signatures

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

Modifies extensions of user files 16 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\GrantStart.tiff	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\MountBackup.tiff => C:\Users\Admin\Pictures\MountBackup.tiff.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\OptimizeNew.raw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\GrantStart.tiff.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\MountBackup.tiff.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\OptimizeConnect.png.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\OptimizeConnect.png => C:\Users\Admin\Pictures\OptimizeConnect.png.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\OptimizeNew.raw => C:\Users\Admin\Pictures\OptimizeNew.raw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\RequestRestart.crw => C:\Users\Admin\Pictures\RequestRestart.crw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\ApproveClear.crw => C:\Users\Admin\Pictures\ApproveClear.crw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertToShow.raw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\GrantStart.tiff => C:\Users\Admin\Pictures\GrantStart.tiff.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\RequestRestart.crw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\ApproveClear.crw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File renamed	C:\Users\Admin\Pictures\ConvertToShow.raw => C:\Users\Admin\Pictures\ConvertToShow.raw.OpA4hYU4k	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
File opened for modification	C:\Users\Admin\Pictures\MountBackup.tiff	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\OpA4hYU4k.bmp"	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\OpA4hYU4k.bmp"	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop\WallpaperStyle = "10"	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeDebugPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: 36	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeImpersonatePrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeIncBasePriorityPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeIncreaseQuotaPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: 33	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeManageVolumePrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeProfSingleProcessPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeRestorePrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeSecurityPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeSystemProfilePrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeTakeOwnershipPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeShutdownPrivilege	5084	f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
Token: SeBackupPrivilege	4704	vssvc.exe
Token: SeRestorePrivilege	4704	vssvc.exe
Token: SeAuditPrivilege	4704	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.exe
"C:\Users\Admin\AppData\Local\Temp\f3474589cafa855a73d0830883b9909095f82c28aa468e999940faf85beca4c1.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:5084

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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