blackmatter | 520bd9ed608c668810971dbd51184c6a29819674280b018dc4027bc38fc42e57

General

Target

50c4970003a84cab1bf2634631fe39d7.exe
Size

78KB
MD5

50c4970003a84cab1bf2634631fe39d7
SHA1

721a749cbd6afcd765e07902c17d5ab949b04e4a
SHA256

520bd9ed608c668810971dbd51184c6a29819674280b018dc4027bc38fc42e57
SHA512

fb210c92f7d1be9f9361b11dffd30fac78eeaadabf844a78a7dad00169f994d089c1cf4a037d6a1b82fddf35a6bfa34b8cbf216ce1786f407dfc015c72533504
SSDEEP

1536:7nICS4ArFnRoHhcVyid9EZZoi+zQsgoZ2GwrCN:4ZnmqVyq9EN+MzW

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

F:\I92w9iew3.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/0JOA98TDMXLHJ77VDOO >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/0JOA98TDMXLHJ77VDOO

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
Renames multiple (151) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\I92w9iew3.bmp"	50c4970003a84cab1bf2634631fe39d7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\I92w9iew3.bmp"	50c4970003a84cab1bf2634631fe39d7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\Desktop	50c4970003a84cab1bf2634631fe39d7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\Desktop\WallpaperStyle = "10"	50c4970003a84cab1bf2634631fe39d7.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International	50c4970003a84cab1bf2634631fe39d7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe
1752	50c4970003a84cab1bf2634631fe39d7.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeDebugPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: 36	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeImpersonatePrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeIncBasePriorityPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeIncreaseQuotaPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: 33	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeManageVolumePrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeProfSingleProcessPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeRestorePrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeSecurityPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeSystemProfilePrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeTakeOwnershipPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeShutdownPrivilege	1752	50c4970003a84cab1bf2634631fe39d7.exe
Token: SeBackupPrivilege	4488	vssvc.exe
Token: SeRestorePrivilege	4488	vssvc.exe
Token: SeAuditPrivilege	4488	vssvc.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\50c4970003a84cab1bf2634631fe39d7.exe
"C:\Users\Admin\AppData\Local\Temp\50c4970003a84cab1bf2634631fe39d7.exe"
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1752

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

F:\I92w9iew3.README.txt

Filesize
1KB

MD5
8d8f960af0181c4ecbb0ae3d7572199c

SHA1
32169e6bec91a3275c4608120d1ba34bdbd6a004

SHA256
29181bf7ae071329e459ad38efc9986f2ff83a8d83a212f06514806d86129296

SHA512
941d22ed2163e238d3db2d72e1f0f4e59cb4924e69bc178672c7e07b84dfadfe0198ef3c7a84c47e78a1c753fbc3472798fc8466ef865aa493b75fa27f5a2de2

Download Submit
memory/1752-0-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/1752-1-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/1752-247-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/1752-248-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download

Analysis

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