blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
121s
max time network
120s
platform
windows7_x64
resource
win7-en-20211104
submitted
23-11-2021 10:31

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General

Target

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Size

80KB
MD5

cdece7491402c7cb06964ffc680d791a
SHA1

8c5427baa48d840bc7508eeaa7c091d368a68e0a
SHA256

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a
SHA512

5ff6eb1f81bb309aede35a9aef26ea587b6c2e49bea66f6e91bf1dbc02cc978869a1bfd376b524522cc8bf99f48ee7f62db9322212342bc4d7af40984290e501

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 data stolen? From your network was stolen some amount of data automatically (reach us to get the amount). 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: %BLOG_URL% >>> 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/9YDGH04DC6ZS7RP0085Q >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/9YDGH04DC6ZS7RP0085Q

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
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 (nowautomation .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
suricata

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\InstallUnregister.tiff.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File renamed	C:\Users\Admin\Pictures\SelectSearch.tif => C:\Users\Admin\Pictures\SelectSearch.tif.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\SelectSearch.tif.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File renamed	C:\Users\Admin\Pictures\WaitExit.raw => C:\Users\Admin\Pictures\WaitExit.raw.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\ExportSearch.tiff.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File renamed	C:\Users\Admin\Pictures\InstallUnregister.tiff => C:\Users\Admin\Pictures\InstallUnregister.tiff.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\ExportSearch.tiff	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File renamed	C:\Users\Admin\Pictures\ExportSearch.tiff => C:\Users\Admin\Pictures\ExportSearch.tiff.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\InstallUnregister.tiff	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\WaitExit.raw.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File renamed	C:\Users\Admin\Pictures\ExitTrace.png => C:\Users\Admin\Pictures\ExitTrace.png.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
File opened for modification	C:\Users\Admin\Pictures\ExitTrace.png.gawreXkrr	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\gawreXkrr.bmp"	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\gawreXkrr.bmp"	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

pid	process
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

Modifies Control Panel 3 IoCs

evasion

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\International	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "10"	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

pid	process
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exevssvc.exe

description	pid	process
Token: SeBackupPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeDebugPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: 36	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeImpersonatePrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeIncBasePriorityPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeIncreaseQuotaPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: 33	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeManageVolumePrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeProfSingleProcessPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeRestorePrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeSecurityPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeSystemProfilePrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeTakeOwnershipPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeShutdownPrivilege	952	b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
Token: SeBackupPrivilege	1068	vssvc.exe
Token: SeRestorePrivilege	1068	vssvc.exe
Token: SeAuditPrivilege	1068	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.exe
"C:\Users\Admin\AppData\Local\Temp\b0e929e35c47a60f65e4420389cad46190c26e8cfaabe922efd73747b682776a.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:952

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1068

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

T1491

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Downloads

memory/952-55-0x0000000075971000-0x0000000075973000-memory.dmp

Filesize
8KB

Download
memory/952-56-0x0000000001D35000-0x0000000001D46000-memory.dmp

Filesize
68KB

Download
memory/952-57-0x0000000001D30000-0x0000000001D31000-memory.dmp

Filesize
4KB

Download
memory/952-58-0x0000000001D46000-0x0000000001D47000-memory.dmp

Filesize
4KB

Download