General

  • Target

    7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

  • Size

    365KB

  • Sample

    241123-ce4e2a1mcl

  • MD5

    181069ef56a26e9996d2bdcd7264b103

  • SHA1

    dd56a9675cc074fe2022bd94562e9ddc3e172659

  • SHA256

    7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2

  • SHA512

    17d96e01880bb8a361f64502e5f20e80ccc8f41c31ec20d80aa57bbd7ea9bad6bebdf035a6f45ac0efc104cf6f12e47058f83d836b3b9a735e2536114a367e51

  • SSDEEP

    6144:beQ8CfYK6Uqd2GhNPwT2NE6UVKbM0I28VHbWpXqX1vST01i:beQjY3Ui2iNYTQE6UYbMRZbv0yi

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

194.5.97.229:1195

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

    • Size

      365KB

    • MD5

      181069ef56a26e9996d2bdcd7264b103

    • SHA1

      dd56a9675cc074fe2022bd94562e9ddc3e172659

    • SHA256

      7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2

    • SHA512

      17d96e01880bb8a361f64502e5f20e80ccc8f41c31ec20d80aa57bbd7ea9bad6bebdf035a6f45ac0efc104cf6f12e47058f83d836b3b9a735e2536114a367e51

    • SSDEEP

      6144:beQ8CfYK6Uqd2GhNPwT2NE6UVKbM0I28VHbWpXqX1vST01i:beQjY3Ui2iNYTQE6UYbMRZbv0yi

    • AsyncRat

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

    • Asyncrat family

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks