pysilon | 76ac6ec42758b4e9f286e4dc79d04405fb90ea89343977546aa42059b1e228fa | Triage

Sharing

General

Target

Bootstrapper.exe
Size

106.9MB
Sample

240824-emx94atgkk
MD5

6a07c32d6e77bd800cdf80b91368bebc
SHA1

43643d3aaa5ee4567a5b404de688d1389c7aa9a7
SHA256

76ac6ec42758b4e9f286e4dc79d04405fb90ea89343977546aa42059b1e228fa
SHA512

1f8440c226e93429cc8aec674c61928e9a9bd0976982dbc027919aa241785b5667ec24267243e06e96a012a810336f613141785c6b34fa63db4829f7a41cd402
SSDEEP

3145728:slvbiS6xjKcBa6R2qHO5izBVnG0iWMstB2OxpCK:Uv2SWNa6HHCittieB

Score

10^/10

pysilon discovery evasion execution persistence pyinstaller

Malware Config

Targets

- Target
  
  Bootstrapper.exe
- Size
  
  106.9MB
- MD5
  
  6a07c32d6e77bd800cdf80b91368bebc
- SHA1
  
  43643d3aaa5ee4567a5b404de688d1389c7aa9a7
- SHA256
  
  76ac6ec42758b4e9f286e4dc79d04405fb90ea89343977546aa42059b1e228fa
- SHA512
  
  1f8440c226e93429cc8aec674c61928e9a9bd0976982dbc027919aa241785b5667ec24267243e06e96a012a810336f613141785c6b34fa63db4829f7a41cd402
- SSDEEP
  
  3145728:slvbiS6xjKcBa6R2qHO5izBVnG0iWMstB2OxpCK:Uv2SWNa6HHCittieB
Score

9^/10

discovery evasion execution persistence
- 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.
  evasion
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
behavioral1 behavioral2

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

Browser Information Discovery

File and Directory Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

pyinstallerpysilon

behavioral1

behavioral2

discoveryevasionexecutionpersistence