d37fc36a97ad87e3f422657e90896bbf38f7a41af1a2a3d8d64962991673fdc0

Analysis

max time kernel
298s
max time network
206s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
01/03/2026, 14:36

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General

Target
Unwwoven/Cowboyen.txt
Size 618B
Sample260301-ryw8dsd18e
SHA256 d37fc36a97ad87e3f422657e90896bbf38f7a41af1a2a3d8d64962991673fdc0
MD5 2e125a64fe5fe81bc568ab359e4bc620
SHA1 73e52cdd0865e53744862bc27f0094658b5667aa
SHA512 9709113ce0d4cdabbab7fd9dcd95a9bd7e56dec04d18172229d5542453dc5ca4aafa51dd92f91767fc1daf5c1256d321eb54adee902f3c50389ca66bab93068a
TLSH
T1D1F002A6A89C1C8696CE83E2AC91C8719D4B800A4E1600F4807E003C713A71CF8BDA59
MD5 SHA1 SHA512 TLSH

Score

3^/10

ransomware

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000_Classes\Local Settings	cmd.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1336	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5912 wrote to memory of 1336	5912	cmd.exe	80

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Unwwoven\Cowboyen.txt
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5912
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Unwwoven\Cowboyen.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:1336

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1336-1-0x00000206317F0000-0x000002063189F000-memory.dmp

Download

memory/5912-0-0x000001EAB55E0000-0x000001EAB568F000-memory.dmp