387ceccdce7de1fcdcc5115318f41ee384c231ee914695f507081f5afc712f94

Analysis

max time kernel
132s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 16:53

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General

Target

locales/th.pak
Size

964KB
MD5

4917873d8118906bdc08f31afb1ea078
SHA1

49440a3b156d7703533367f8f13f66ec166db6e9
SHA256

d051b400096922089f6daa723fac18c9640ba203b2879aac4ca89b05738dd32d
SHA512

30e6446bad54b86be553fa293c7a92ec221adb54b99624ed69702df75347a98697158041a45f77ece4e7ed0fda41306ef21eb27981f24f0a4e42e8306175a88e
SSDEEP

12288:OgFN2HN9LyZYA1T6z1L/LLftDjsAnILwgv1V5UBGsL3fBj8BlzEdq3Ro9lGdI9uN:OgFYdK5J5j

Score

3^/10

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 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\.pak\ = "pak_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\edit\command	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\.pak	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\open\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\pak_auto_file\shell\edit	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4708	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5044	OpenWith.exe

Suspicious use of SetWindowsHookEx 21 IoCs

pid	Process
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe
5044	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 4708	5044	OpenWith.exe	95
PID 5044 wrote to memory of 4708	5044	OpenWith.exe	95

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\th.pak
1⤵
- Modifies registry class
PID:684

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\locales\th.pak
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:4708

Network

MITRE ATT&CK Enterprise v15

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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