blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-en-20211104
submitted
23-11-2021 10:31

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General

Target

2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Size

66KB
MD5

a55bc3368a10ca5a92c1c9ecae97ced9
SHA1

72ed32b0e8692c7caa25d61e1828cdb48c4fe361
SHA256

2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009
SHA512

da3187046c267b8053f0274de81665234dd07c1d06c61108878abccccb2f10bfe4bf7c53e0e4100ed76772b8b92bdd6c4953f19250f33be7dd9380ab3b63db3c

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 24 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\CompareImport.raw => C:\Users\Admin\Pictures\CompareImport.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\ReadWatch.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\SearchMove.png.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\UndoNew.tif => C:\Users\Admin\Pictures\UndoNew.tif.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\CopyUndo.crw => C:\Users\Admin\Pictures\CopyUndo.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\CopyUndo.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\DisableSplit.crw => C:\Users\Admin\Pictures\DisableSplit.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\DisableSplit.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\ReadWatch.raw => C:\Users\Admin\Pictures\ReadWatch.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeFind.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\SearchMove.png => C:\Users\Admin\Pictures\SearchMove.png.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\CheckpointOpen.png => C:\Users\Admin\Pictures\CheckpointOpen.png.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromPing.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromSet.raw => C:\Users\Admin\Pictures\ConvertFromSet.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\JoinAdd.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromPing.crw => C:\Users\Admin\Pictures\ConvertFromPing.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromSet.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\JoinAdd.raw => C:\Users\Admin\Pictures\JoinAdd.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\RevokeFind.crw => C:\Users\Admin\Pictures\RevokeFind.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\CheckpointOpen.png.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File renamed	C:\Users\Admin\Pictures\CheckpointResume.crw => C:\Users\Admin\Pictures\CheckpointResume.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\CheckpointResume.crw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\CompareImport.raw.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
File opened for modification	C:\Users\Admin\Pictures\UndoNew.tif.gawreXkrr	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.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"	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\gawreXkrr.bmp"	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.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	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "10"	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeDebugPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: 36	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeImpersonatePrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeIncBasePriorityPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeIncreaseQuotaPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: 33	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeManageVolumePrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeProfSingleProcessPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeRestorePrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeSecurityPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeSystemProfilePrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeTakeOwnershipPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeShutdownPrivilege	672	2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
Token: SeBackupPrivilege	1652	vssvc.exe
Token: SeRestorePrivilege	1652	vssvc.exe
Token: SeAuditPrivilege	1652	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
"C:\Users\Admin\AppData\Local\Temp\2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.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:672

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1652

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

Replay Monitor

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Downloads

memory/672-55-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

Filesize
8KB

Download
memory/672-56-0x0000000002005000-0x0000000002016000-memory.dmp

Filesize
68KB

Download
memory/672-57-0x0000000002000000-0x0000000002001000-memory.dmp

Filesize
4KB

Download
memory/672-58-0x0000000002016000-0x0000000002017000-memory.dmp

Filesize
4KB

Download