General

  • Target

    ReBomb2.exe

  • Size

    8.8MB

  • Sample

    241124-1tgfta1rb1

  • MD5

    11f3d124b89d4c6a737f993442e15259

  • SHA1

    290b45651633021d3afd4bdedf8f03c2c705cf11

  • SHA256

    80d1631227d5b253b69f1004286c4562e765d54be593ac0b6ad0d34b35275f94

  • SHA512

    43822db6a9dd226579c136e7049012714fb54ca4915fdf4b4ba92e2a72380b1b56de7a9a6cef79e9b62139e36244812955ca4bb2ff8991f03ef96f929d95b4f8

  • SSDEEP

    196608:jnXFXAjanN0pJEFaSWADbBZpY8kqt0W9X41CoOw0bldnC9t:DFrypJEDpnpzkqt0kX41CtBdnC9t

Malware Config

Extracted

Family

arrowrat

Botnet

VenomHVNC

C2

windows-services.linkpc.net:4448

Mutex

waDQmvKdS.exe

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

windows-services.linkpc.net:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    System.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      ReBomb2.exe

    • Size

      8.8MB

    • MD5

      11f3d124b89d4c6a737f993442e15259

    • SHA1

      290b45651633021d3afd4bdedf8f03c2c705cf11

    • SHA256

      80d1631227d5b253b69f1004286c4562e765d54be593ac0b6ad0d34b35275f94

    • SHA512

      43822db6a9dd226579c136e7049012714fb54ca4915fdf4b4ba92e2a72380b1b56de7a9a6cef79e9b62139e36244812955ca4bb2ff8991f03ef96f929d95b4f8

    • SSDEEP

      196608:jnXFXAjanN0pJEFaSWADbBZpY8kqt0W9X41CoOw0bldnC9t:DFrypJEDpnpzkqt0kX41CtBdnC9t

    • ArrowRat

      Remote access tool with various capabilities first seen in late 2021.

    • Arrowrat family

    • AsyncRat

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

    • Asyncrat family

    • Modifies WinLogon for persistence

    • Async RAT payload

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks