Malware Analysis Report

2025-05-05 21:08

Sample ID 241025-zpzk6awcjq
Target source_prepared.py
SHA256 7ab7c3855092fd3a05a2130e76f84961cb10fd885aac6d6e555aa02d2967004b
Tags
discovery pysilon
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7ab7c3855092fd3a05a2130e76f84961cb10fd885aac6d6e555aa02d2967004b

Threat Level: Known bad

The file source_prepared.py was found to be: Known bad.

Malicious Activity Summary

discovery pysilon

Detect Pysilon

Pysilon family

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Modifies registry class

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-25 20:54

Signatures

Detect Pysilon

Description Indicator Process Target
N/A N/A N/A N/A

Pysilon family

pysilon

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-25 20:54

Reported

2024-10-25 20:54

Platform

win7-20241023-en

Max time kernel

14s

Max time network

0s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.py

Signatures

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.py

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\source_prepared.py

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\source_prepared.py"

Network

N/A

Files

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

MD5 a20ae8f46f72bf24e9f3d73a42b3741c
SHA1 b48635225fa76d031a0ac713af12d68f5ca449d9
SHA256 430b7ab600286ad0589acac399bf713d2ff6d8e7a464079a4ca9a1b1b7a19480
SHA512 6f4463208facfb23c9b6a8595ddebc41880df08ec82b6baf72c631ddf2fa4ed4bb63cf14633dc6f23e15fd9c228b9a19139289c7c04b464d5b761777842097bf

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-25 20:54

Reported

2024-10-25 20:54

Platform

win10v2004-20241007-en

Max time kernel

12s

Max time network

14s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.py

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.py

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 219.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp

Files

N/A