General

  • Target

    https://gofile.io/d/NhhoD3

  • Sample

    240613-3wkblazejj

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4782

127.0.0.1:4781

127.0.0.1:4783

127.0.0.1:4784

127.0.0.1:4785

127.0.0.1:4786

127.0.0.1:4787

127.0.0.1:4788

127.0.0.1:4789

127.0.0.1:4790

127.0.0.1:4791

127.0.0.1:4792

127.0.0.1:4793

91.92.246.67:4782

91.92.246.67:4781

91.92.246.67:4783

91.92.246.67:4784

91.92.246.67:4785

91.92.246.67:4786

91.92.246.67:4787

Mutex

gryzaavvqgfsdtn

Attributes
  • delay

    1

  • install

    true

  • install_file

    Clien64 Bootstrapper.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      https://gofile.io/d/NhhoD3

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Async RAT payload

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks