pysilon | 3c6f5107ee6b84574bffbbb56d74f4b5df955b40183613d62ce388905a407d6b | Triage

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Reports

Overview

overview

Static

static

source_prepared.exe

windows10-ltsc_2021-x64

9

Sharing

General

Target

source_prepared.exe
Size

84.1MB
Sample

250321-xttjlawwhz
MD5

93f046badf8b5175ec05d50037c4d5fc
SHA1

b3b9b295a51e8abc6dd49cdd9e925f76b27810bf
SHA256

3c6f5107ee6b84574bffbbb56d74f4b5df955b40183613d62ce388905a407d6b
SHA512

8fd69e9019973b48696afa9143642dd64c8862af126264d658c73a4fcec157282b8343e93e280cc592cdd230babff4188b240b4dae2424a63589f49a8bc005f7
SSDEEP

1572864:utIupuqVjl/lWXdP4OkiqOv8im2AUdfUE7nlhnwgiYweyJulZUdg/Xgz2UZvkOJv:NYFrcdgOknOv8i3XfNLwZpu7XgznkOF

Score

10^/10

pysilon defense_evasion execution persistence pyinstaller upx

Static task

static1

pyinstaller pysilon

4 signatures

Behavioral task

behavioral1

Sample

source_prepared.exe

Resource

win10ltsc2021-20250314-en

defense_evasion execution persistence upx

windows10-ltsc_2021-x64

15 signatures

300 seconds

Malware Config

Targets

- Target
  
  source_prepared.exe
- Size
  
  84.1MB
- MD5
  
  93f046badf8b5175ec05d50037c4d5fc
- SHA1
  
  b3b9b295a51e8abc6dd49cdd9e925f76b27810bf
- SHA256
  
  3c6f5107ee6b84574bffbbb56d74f4b5df955b40183613d62ce388905a407d6b
- SHA512
  
  8fd69e9019973b48696afa9143642dd64c8862af126264d658c73a4fcec157282b8343e93e280cc592cdd230babff4188b240b4dae2424a63589f49a8bc005f7
- SSDEEP
  
  1572864:utIupuqVjl/lWXdP4OkiqOv8im2AUdfUE7nlhnwgiYweyJulZUdg/Xgz2UZvkOJv:NYFrcdgOknOv8i3XfNLwZpu7XgznkOF
Score

9^/10

defense_evasion execution persistence upx
- Enumerates VirtualBox DLL files
- Command and Scripting Interpreter: PowerShell
  Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
  execution
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  defense_evasion
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

PowerShell

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Hide Artifacts

Hidden Files and Directories

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

File and Directory Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Web Service

Exfiltration

Impact

Tasks

static1

pyinstallerpysilon

behavioral1

defense_evasionexecutionpersistenceupx

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