General

  • Target
    New folder.rar
  • Size 16.2MB
  • Sample260730-yc69ssfl9v
  • SHA256 c5099e7bd4a63581755c0cda59324f651d646cfab49668b967612f898645731f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • %ProgramData%

Botnet
  • js-crypter

Mutex
  • VN6KXtHmRFqI

Attributes
  • delay

    3

  • install

    false

  • install_file

    WindowsUpdate

  • install_folder

    schtasks

aes.plain

Targets

    • Target
      New folder.rar
    • Size 16.2MB
    • SHA256 c5099e7bd4a63581755c0cda59324f651d646cfab49668b967612f898645731f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Async RAT payload

    • Detects DonutLoader

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound

      Network activity triggered a Suricata alert

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v16

Tasks