3f2e89b07e7730999d80b41a44dc29f53aaba7875da5734b8158bfa74f645f3f

Analysis

max time kernel
148s
max time network
156s
platform
windows11-21h2_x64
resource
win11-20241023-en
resource tags

arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
submitted
19-11-2024 20:30

Target

public/steambootstrapper_schinese.txt
Size

4KB
MD5

56dcf7b68f70826262a6ffaffe6b1c49
SHA1

12e4272ba0e4eabc610670cdc6941f942da1eb6a
SHA256

948cad1bb27109e008f2457248880c759d3fa98b92c5b4033b94f455cb8ac43f
SHA512

c3fd9caf0bd4c303a7cc300faada9cfe6dd752e82d67625b31f4c0c2c091596508bb477fe19f758fdf79b25b8ac3f5320a8785d2b6705b9bcc28a054a59454e2
SSDEEP

96:/BAGpCOREHce3QuRZY7yezuqY2v14q3HPG9AHINL4QI04VOo8a8Jz:Sr+re3QurY7XfHPgNL4d04V38a8Jz

Score

3^/10

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-4248760313-3670024077-2384670640-1000_Classes\Local Settings cmd.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2388 NOTEPAD.EXE
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

cmd.exe

description pid process target process

PID 1440 wrote to memory of 2388 1440 cmd.exe NOTEPAD.EXE
PID 1440 wrote to memory of 2388 1440 cmd.exe NOTEPAD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4248760313-3670024077-2384670640-1000_Classes\Local Settings	cmd.exe

pid	process
2388	NOTEPAD.EXE

description	pid	process	target process
PID 1440 wrote to memory of 2388	1440	cmd.exe	NOTEPAD.EXE
PID 1440 wrote to memory of 2388	1440	cmd.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\public\steambootstrapper_schinese.txt
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\public\steambootstrapper_schinese.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:2388

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact