General

  • Target

    gmx.bat

  • Size

    44KB

  • Sample

    240821-m41qjsvcld

  • MD5

    eef38915ff6b8176f4b7905cb9ff4d60

  • SHA1

    689183449a5d999e95161cb0ef681201b9ed5a8b

  • SHA256

    39625cd5f171675c9780cbacb56b03a158bf20f3dfd7ac086789579e3a9d11bc

  • SHA512

    44ec7348dde9a1ad9acc1ea61ab86ff764ee694345371cac6d30276fa4080f335afd45c65d66833a2e2a508981eaddbf3e823bcf978351694f85043e9cd9889e

  • SSDEEP

    768:X5Zv0YLoUmtuDiwSnNrD/2V2kLEfcy2rcYWqhQdlSR6pexjNr/4q0VvKS9oDt+mz:XoSRi97u0dM1

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

157.20.182.172:3232

45.66.231.150:3232

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Targets

    • Target

      gmx.bat

    • Size

      44KB

    • MD5

      eef38915ff6b8176f4b7905cb9ff4d60

    • SHA1

      689183449a5d999e95161cb0ef681201b9ed5a8b

    • SHA256

      39625cd5f171675c9780cbacb56b03a158bf20f3dfd7ac086789579e3a9d11bc

    • SHA512

      44ec7348dde9a1ad9acc1ea61ab86ff764ee694345371cac6d30276fa4080f335afd45c65d66833a2e2a508981eaddbf3e823bcf978351694f85043e9cd9889e

    • SSDEEP

      768:X5Zv0YLoUmtuDiwSnNrD/2V2kLEfcy2rcYWqhQdlSR6pexjNr/4q0VvKS9oDt+mz:XoSRi97u0dM1

    • AsyncRat

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Downloads MZ/PE file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Enterprise v15

Tasks