General

  • Target

    aimr.exe

  • Size

    62.5MB

  • Sample

    241228-bt7wbstjgw

  • MD5

    9de2f7e5b6aec38fe08b447296413421

  • SHA1

    4e5dbfdbb5512c545abaff0b9561bea95f4abdd4

  • SHA256

    8c8bdba7313a236d8d90adffa63402ae96e1b2a6314713883a1a3832dc3fecfb

  • SHA512

    48e01b5698bd2bfb29fda2d40a166896aafbf9086fda89590af8f476686e584fc14fb464400c13488abf55db7be39d62bdc226fa95ce8456fb2a1112ddf82b10

  • SSDEEP

    49152:CbOWffF0ChpMq2yNO/6heTR8DgVmkLoqlfqcIjRmUwhD8aW+bX1aeTDjotOieZxG:GOfChpMq

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

87.120.113.125:55644

Mutex

Syx7cNbJlqC2

Attributes
  • delay

    3

  • install

    false

  • install_file

    winserve.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      aimr.exe

    • Size

      62.5MB

    • MD5

      9de2f7e5b6aec38fe08b447296413421

    • SHA1

      4e5dbfdbb5512c545abaff0b9561bea95f4abdd4

    • SHA256

      8c8bdba7313a236d8d90adffa63402ae96e1b2a6314713883a1a3832dc3fecfb

    • SHA512

      48e01b5698bd2bfb29fda2d40a166896aafbf9086fda89590af8f476686e584fc14fb464400c13488abf55db7be39d62bdc226fa95ce8456fb2a1112ddf82b10

    • SSDEEP

      49152:CbOWffF0ChpMq2yNO/6heTR8DgVmkLoqlfqcIjRmUwhD8aW+bX1aeTDjotOieZxG:GOfChpMq

    • AsyncRat

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

    • Asyncrat family

    • Async RAT payload

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks