pysilon | 3ea6f7524f8931299f6321074e53b931417dedfc90ab9112f33ed45f5da76858 | Triage

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Reports

Overview

overview

Static

static

S1ModLoader.exe

windows11-21h2-x64

9

Resubmissions

19/03/2025, 21:22 UTC

250319-z8a2xatshv 10

13/03/2025, 20:01 UTC

250313-yrvjjs1ydx 10

13/03/2025, 19:41 UTC

250313-yd3m1a1vbt 10

13/03/2025, 06:53 UTC

250313-hnlt8sytht 10

Sharing

General

Target

S1ModLoader.exe
Size

87.5MB
Sample

250313-yd3m1a1vbt
MD5

51d993521dfe63cc06813bedcbd6afc9
SHA1

bd3946664fadd9da36a51d39d7443efcce06cb34
SHA256

3ea6f7524f8931299f6321074e53b931417dedfc90ab9112f33ed45f5da76858
SHA512

178dc4f6949500bc8544bbb6662663091e3a8744695abc2e75fe7fe508324e096fde0efbf547d2c5f7c00eeda49ef846562ff8aa0f17354086fda83b8efad52c
SSDEEP

1572864:xNK+4lqWLqP0OkiqOv8im2A4lE7flPLiYgj+h58sMwGe3CpcJ5AS:xP4MdMOknOv8i3LeJF5qe3DA

Score

10^/10

pysilon defense_evasion execution persistence pyinstaller upx

Static task

static1

pyinstaller pysilon

4 signatures

Behavioral task

behavioral1

Sample

S1ModLoader.exe

Resource

win11-20250217-en

defense_evasion execution persistence upx

windows11-21h2-x64

12 signatures

30 seconds

Malware Config

Targets

- Target
  
  S1ModLoader.exe
- Size
  
  87.5MB
- MD5
  
  51d993521dfe63cc06813bedcbd6afc9
- SHA1
  
  bd3946664fadd9da36a51d39d7443efcce06cb34
- SHA256
  
  3ea6f7524f8931299f6321074e53b931417dedfc90ab9112f33ed45f5da76858
- SHA512
  
  178dc4f6949500bc8544bbb6662663091e3a8744695abc2e75fe7fe508324e096fde0efbf547d2c5f7c00eeda49ef846562ff8aa0f17354086fda83b8efad52c
- SSDEEP
  
  1572864:xNK+4lqWLqP0OkiqOv8im2A4lE7flPLiYgj+h58sMwGe3CpcJ5AS:xP4MdMOknOv8i3LeJF5qe3DA
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
- 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

Exfiltration

Impact

Tasks

static1

pyinstallerpysilon

behavioral1

defense_evasionexecutionpersistenceupx

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