25f771e57e57c0b078285aeda8b48e0a8ac77e02e4202193b2eae25d415f9e11

Analysis

max time kernel
21s
max time network
46s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2023, 11:52

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General

Target
04228599.exe
Size 191KB
Sample230613-n1wsvsga49
SHA256 25f771e57e57c0b078285aeda8b48e0a8ac77e02e4202193b2eae25d415f9e11
MD5 067594d9f40a1ff4f492dd14b4b5a2a7
SHA1 797c6d73c986a3ebe8e8c5f304213ac4c935d853
SHA512 b78b6efb8efb51f8c27abf933c6210f2533df6e74c94bbe19ec3ca27180a48420702532e2bc739f35a1bf3950e79126ed7ddaf23f75de01d45db93dbedef71cd
SSDEEP 3072:uD9bRd2l5nafJNZrogIE/OZBPymfc2gJn+dyv1GNysh30kUrIH:uD9r85oJN5rIbZBamfwJoh
MD5 SHA1 SHA512 SSDEEP

Score

5^/10

ransomware

Malware Config

Signatures

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\Desktop\Wallpaper	04228599.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
560	winver.exe
560	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3152	Explorer.EXE
Token: SeCreatePagefilePrivilege	3152	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
560	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 560	4416	04228599.exe	82
PID 4416 wrote to memory of 560	4416	04228599.exe	82
PID 4416 wrote to memory of 560	4416	04228599.exe	82
PID 4416 wrote to memory of 560	4416	04228599.exe	82
PID 560 wrote to memory of 3152	560	winver.exe	37
PID 560 wrote to memory of 2488	560	winver.exe	12
PID 560 wrote to memory of 2504	560	winver.exe	48
PID 560 wrote to memory of 2736	560	winver.exe	40
PID 560 wrote to memory of 3152	560	winver.exe	37
PID 560 wrote to memory of 3304	560	winver.exe	36

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3304

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3152
- C:\Users\Admin\AppData\Local\Temp\04228599.exe
  "C:\Users\Admin\AppData\Local\Temp\04228599.exe"
  2⤵
  - Sets desktop wallpaper using registry
  - Suspicious use of WriteProcessMemory
  PID:4416
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:560

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2736

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2504

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/560-137-0x00000000009E0000-0x00000000009E7000-memory.dmp

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memory/560-141-0x00000000009E0000-0x00000000009E7000-memory.dmp

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memory/2504-145-0x00000000004C0000-0x00000000004C7000-memory.dmp

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memory/2736-146-0x00000000000E0000-0x00000000000E7000-memory.dmp

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memory/3152-138-0x0000000003330000-0x0000000003337000-memory.dmp

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memory/3152-136-0x0000000003330000-0x0000000003337000-memory.dmp

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memory/3152-147-0x0000000003340000-0x0000000003347000-memory.dmp

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memory/3304-148-0x00000000009D0000-0x00000000009D7000-memory.dmp

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memory/3548-149-0x0000000000860000-0x0000000000867000-memory.dmp

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memory/4416-140-0x0000000008B00000-0x0000000009500000-memory.dmp

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memory/4416-134-0x0000000002330000-0x0000000002331000-memory.dmp

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memory/4416-143-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/4416-133-0x00000000023C0000-0x0000000002550000-memory.dmp

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