General

  • Target

    4f90acd8429781753e1b43f7c32efaa4ddc9fc108eaec01d9d1dd4ddc444208c.vbs

  • Size

    6KB

  • Sample

    250129-c5jtbaykdy

  • MD5

    5cd058a830624c948fcf2e91589e523c

  • SHA1

    f3ff01a26d55f8c01dc6d930afc526653164e2fd

  • SHA256

    4f90acd8429781753e1b43f7c32efaa4ddc9fc108eaec01d9d1dd4ddc444208c

  • SHA512

    786773fd9d87fa23680cface7236c349b560c7ad4241624f91a6fd6d6cfc05d7e554555614b93a78a2be8000b2c4e5c1b1fca9a312bd68a77cbab1b38ff23370

  • SSDEEP

    96:ej/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/3:8PjGZOmya03D

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

      4f90acd8429781753e1b43f7c32efaa4ddc9fc108eaec01d9d1dd4ddc444208c.vbs

    • Size

      6KB

    • MD5

      5cd058a830624c948fcf2e91589e523c

    • SHA1

      f3ff01a26d55f8c01dc6d930afc526653164e2fd

    • SHA256

      4f90acd8429781753e1b43f7c32efaa4ddc9fc108eaec01d9d1dd4ddc444208c

    • SHA512

      786773fd9d87fa23680cface7236c349b560c7ad4241624f91a6fd6d6cfc05d7e554555614b93a78a2be8000b2c4e5c1b1fca9a312bd68a77cbab1b38ff23370

    • SSDEEP

      96:ej/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/Eb/3:8PjGZOmya03D

    • 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