blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-en-20211104
submitted
23-11-2021 10:31

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General

Target

c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Size

66KB
MD5

ba375d0625001102fc1f2ccb6f582d91
SHA1

379ebd1eff6f8685f4ff72657626bf6df5383d87
SHA256

c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99
SHA512

795b10a638e289729192de6a6d9964b5ad3b8084f84d58da077ca8ec08c8b8cb1acadb5240962d4ccacf66242bab1430923fc77bdbbfacd0badd64df2ba1487f

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\gawreXkrr.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
suricata: ET MALWARE BlackMatter CnC Activity
suricata: ET MALWARE BlackMatter CnC Activity
suricata
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
suricata

Modifies extensions of user files 13 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\RegisterUninstall.png => C:\Users\Admin\Pictures\RegisterUninstall.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterUninstall.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\RenameRestart.tiff	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\RenameStep.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File renamed	C:\Users\Admin\Pictures\StopInvoke.png => C:\Users\Admin\Pictures\StopInvoke.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File renamed	C:\Users\Admin\Pictures\CompleteResolve.crw => C:\Users\Admin\Pictures\CompleteResolve.crw.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteResolve.crw.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File renamed	C:\Users\Admin\Pictures\RenameRestart.tiff => C:\Users\Admin\Pictures\RenameRestart.tiff.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\RenameRestart.tiff.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File renamed	C:\Users\Admin\Pictures\RenameStep.png => C:\Users\Admin\Pictures\RenameStep.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\StopInvoke.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File renamed	C:\Users\Admin\Pictures\ProtectConfirm.png => C:\Users\Admin\Pictures\ProtectConfirm.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
File opened for modification	C:\Users\Admin\Pictures\ProtectConfirm.png.gawreXkrr	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.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-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\gawreXkrr.bmp"	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\gawreXkrr.bmp"	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\International	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "10"	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeDebugPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: 36	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeImpersonatePrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeIncBasePriorityPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeIncreaseQuotaPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: 33	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeManageVolumePrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeProfSingleProcessPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeRestorePrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeSecurityPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeSystemProfilePrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeTakeOwnershipPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeShutdownPrivilege	752	c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
Token: SeBackupPrivilege	776	vssvc.exe
Token: SeRestorePrivilege	776	vssvc.exe
Token: SeAuditPrivilege	776	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.exe
"C:\Users\Admin\AppData\Local\Temp\c6e2ef30a86baa670590bd21acf5b91822117e0cbe6060060bc5fe0182dace99.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:752

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

memory/752-55-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/752-57-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/752-56-0x0000000000935000-0x0000000000946000-memory.dmp

Filesize
68KB

Download
memory/752-58-0x0000000000946000-0x0000000000947000-memory.dmp

Filesize
4KB

Download