Overview

overview

10

Static

static

1

WMIEventLog.vbs

windows10-2004-x64

10

WMIEventLog.vbs

windows11-21h2-x64

10

Sharing

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General

  • Target
    WMIEventLog.vbs
  • Size 5.8MB
  • Sample250624-gjaqqsysfx
  • SHA256 6cef2a9dfe5e84b67c901ff1e8d8544ed3f763b47a462f9014f3674db182e464
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratnuevosdiscoveryexecutionrat

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://archive.org/download/wp4096799-lost-in-space-wallpapers_20250621_1447/wp4096799-lost-in-space-wallpapers.jpg
  • exe.dropper

    https://archive.org/download/wp4096799-lost-in-space-wallpapers_20250621_1447/wp4096799-lost-in-space-wallpapers.jpg

Extracted

Family

  • asyncrat

Version

  • 1.0.7

Botnet

  • Nuevos

C2

  • wmieventlogonlinehelp.ydns.eu:1000

Mutex

  • asdfkbsdfgsdjnbtgnir

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      WMIEventLog.vbs
    • Size 5.8MB
    • SHA256 6cef2a9dfe5e84b67c901ff1e8d8544ed3f763b47a462f9014f3674db182e464
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    asyncratnuevosdiscoveryexecutionrat

    • AsyncRat

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

      ratasyncrat

    • Asyncrat family

      asyncrat

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks