General

  • Target

    rXoBUpDZJm.WSF.wsf

  • Size

    463KB

  • Sample

    250128-m8jylawqgy

  • MD5

    264f5367e4122a1d79c65688daef19cb

  • SHA1

    b56fbe178275a6ca6440711056dbcdacb5bb7186

  • SHA256

    c0727985c6dcc2b21c67ef3e3c5ac0f01ff220024505089ddd116e423562b2f9

  • SHA512

    e4e4a79d9eae8a3cd9c9ce53c243ee0a35514b0d31731a1360935556dc08cd8ffb5d7e69575e9cb2bbf4e7d2d0b1273faa9f258b1f1c6fce4647767f44a879cc

  • SSDEEP

    12288:hSgSgSgSgSgSgSgSgSgSgSgSMSgSgSgSgSgSgSgSgSgSgSgSlSgSgSgSgSgSgSgo:X

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

C2

81.10.39.58:7077

Mutex

AsyncMutex_alosh

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      rXoBUpDZJm.WSF.wsf

    • Size

      463KB

    • MD5

      264f5367e4122a1d79c65688daef19cb

    • SHA1

      b56fbe178275a6ca6440711056dbcdacb5bb7186

    • SHA256

      c0727985c6dcc2b21c67ef3e3c5ac0f01ff220024505089ddd116e423562b2f9

    • SHA512

      e4e4a79d9eae8a3cd9c9ce53c243ee0a35514b0d31731a1360935556dc08cd8ffb5d7e69575e9cb2bbf4e7d2d0b1273faa9f258b1f1c6fce4647767f44a879cc

    • SSDEEP

      12288:hSgSgSgSgSgSgSgSgSgSgSgSMSgSgSgSgSgSgSgSgSgSgSgSlSgSgSgSgSgSgSgo:X

    • AsyncRat

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

    • Asyncrat family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks