40dca8cc9156a448082670599d1779339738028a616b3c1047178cf0a0baa6e5

Analysis

max time kernel
1175s
max time network
1183s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 12:36

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General

Target

doc/colormanage/GS9_Color_Management.tex
Size

83KB
MD5

89e718ba39ebfb13fc2cf095bd04d8bc
SHA1

010f8588665297f0d656c20cab6a50d74a204f9b
SHA256

53c5f1da6fe591327f545d9054b58de3ec80ebd6039e9185e259abab532ce937
SHA512

152545d1a3017c565bcfc7f5211f285062d0358123a3e772a50409e7305df0080a8edb2920011501f0268e1d4d10fc6a5409e3b8a0885288fe96922eda999209
SSDEEP

1536:gR+pS90yGWu7GjNnqhQhe/+tCGKXbtfacTFIm6YeSVDI+hq0jgSvGzdjpvW0FpcG:gR+A0yGWu7GjNnqhQhhtCGKXbtfacTFS

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\.tex	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\edit	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\open\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\Local Settings	cmd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\.tex\ = "tex_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\edit\command	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\tex_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3284	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4012	OpenWith.exe

Suspicious use of SetWindowsHookEx 31 IoCs

pid	Process
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe
4012	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 3284	4012	OpenWith.exe	98
PID 4012 wrote to memory of 3284	4012	OpenWith.exe	98

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\doc\colormanage\GS9_Color_Management.tex
1⤵
- Modifies registry class
PID:528

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:4012
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\doc\colormanage\GS9_Color_Management.tex
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3284

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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