matrix | aebc7adbfa6abde961966f30524f8c2a12d2c21132a7d647983209c061d9885e

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
29-07-2023 12:42

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General

Target

test.zip
Size

178KB
MD5

637f1b621634196dd7628c5ce387da62
SHA1

c727727ed610d62da7e51d099f809a13f656e99e
SHA256

aebc7adbfa6abde961966f30524f8c2a12d2c21132a7d647983209c061d9885e
SHA512

0ceed157c8362e6f01b2f2d90f458008d0fc3d0b6721e7abcd61dcd89f24036e681b0e5a976aeea7eff6a8a012425b8024c4912661e81207559424ec8c2c8183
SSDEEP

3072:DdEZd15mu8QHZWzq6ifTvfy4WVmqbPmEd8N9NBmVKeM6z50zo4FEXMuxI:GP5WG62yZxbOEqHmhV10zwMr

Score

10^/10

matrix ransomware

Malware Config

Signatures

Matrix Ransomware 3 IoCs

Targeted ransomware with information collection and encryption functionality.

ransomware matrix

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	test.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop//wallpaper.bit.png"	test.exe
File created	C:\Users\Admin\Desktop\readme.rtf	decryptor.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Executes dropped EXE 1 IoCs

pid	Process
2768	decryptor.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	test.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-1-5-21-1024678951-1535676557-2778719785-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop//wallpaper.bit.png"	test.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	test.exe

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
1384	timeout.exe
576	timeout.exe

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
1776	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2600	vssvc.exe
Token: SeRestorePrivilege	2600	vssvc.exe
Token: SeAuditPrivilege	2600	vssvc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2768	decryptor.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1776	1712	test.exe	36
PID 1712 wrote to memory of 1776	1712	test.exe	36
PID 1712 wrote to memory of 1776	1712	test.exe	36
PID 1712 wrote to memory of 1776	1712	test.exe	36
PID 1712 wrote to memory of 2768	1712	test.exe	39
PID 1712 wrote to memory of 2768	1712	test.exe	39
PID 1712 wrote to memory of 2768	1712	test.exe	39
PID 1712 wrote to memory of 2768	1712	test.exe	39
PID 1712 wrote to memory of 1004	1712	test.exe	40
PID 1712 wrote to memory of 1004	1712	test.exe	40
PID 1712 wrote to memory of 1004	1712	test.exe	40
PID 1712 wrote to memory of 1004	1712	test.exe	40
PID 1004 wrote to memory of 576	1004	cmd.exe	43
PID 1004 wrote to memory of 576	1004	cmd.exe	43
PID 1004 wrote to memory of 576	1004	cmd.exe	43
PID 1004 wrote to memory of 576	1004	cmd.exe	43
PID 1004 wrote to memory of 1384	1004	cmd.exe	44
PID 1004 wrote to memory of 1384	1004	cmd.exe	44
PID 1004 wrote to memory of 1384	1004	cmd.exe	44
PID 1004 wrote to memory of 1384	1004	cmd.exe	44

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

C:\Windows\Explorer.exe
C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\test.zip
1⤵
PID:2064

C:\Users\Admin\Desktop\test.exe
"C:\Users\Admin\Desktop\test.exe"
1⤵
- Matrix Ransomware
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\vssadmin.exe
  "vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:1776
- C:\Users\Admin\Desktop\decryptor.exe
  "C:\Users\Admin\Desktop\decryptor.exe" C:\Users\Admin\Desktop//test.exe
  2⤵
  - Matrix Ransomware
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  PID:2768
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\//destruct.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:576
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:1384

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact