Overview

overview

10

Static

static

10

MB66 APP.exe

windows10-2004-x64

10

MB66 APP.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    MB66 APP.exe
  • Size 60KB
  • Sample260925-km97jscd93
  • SHA256 074ce8ba381526faa61c3f512d8901138695f7ada15f7885db886c47bed969e5
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
asyncratdefaultdefense_evasiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • mb66ax.com:8080

  • mb66ax.com:443

  • mb66ax.com:8443

  • mb66ax.com:80

  • www.mb66ax.com:8080

  • www.mb66ax.com:443

  • www.mb66ax.com:8443

  • www.mb66ax.com:80

  • c2.mb66ax.com:8080

  • c2.mb66ax.com:443

  • c2.mb66ax.com:8443

  • c2.mb66ax.com:80

  • malware.mb66ax.com:8080

  • malware.mb66ax.com:443

  • malware.mb66ax.com:8443

  • malware.mb66ax.com:80

  • backdoor.mb66ax.com:8080

  • backdoor.mb66ax.com:443

  • backdoor.mb66ax.com:8443

  • backdoor.mb66ax.com:80

Mutex

  • g1f7X2L0aGYH

Attributes
  • delay

    3

  • install

    true

  • install_file

    S8.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://mb66ax.com/load.ps1

Targets

    • Target
      MB66 APP.exe
    • Size 60KB
    • SHA256 074ce8ba381526faa61c3f512d8901138695f7ada15f7885db886c47bed969e5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

    • Async RAT payload

      rat

    • Family: AsyncRat

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

      ratasyncrat

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • 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.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks