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General

  • Target

    https://github.com/Rebomb/ReBomb2/raw/refs/heads/main/ReBomb2.exe

  • Sample

    250204-bhqgxa1nhn

Malware Config

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
1
DkAgXLH63obAPLYUUuokTUGDjt1Yn9Es

Extracted

Family

arrowrat

Botnet

VenomHVNC

C2

windows-services.linkpc.net:4448

Mutex

waDQmvKdS.exe

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

C2

windows-services.linkpc.net:5552

Mutex

c2d3daef88a746

Attributes
  • reg_key

    c2d3daef88a746

  • splitter

    @!#&^%$

Targets

    • Target

      https://github.com/Rebomb/ReBomb2/raw/refs/heads/main/ReBomb2.exe

    • 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

    • Njrat family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Async RAT payload

    • Blocklisted process makes network request

    • Boot or Logon Autostart Execution: Active Setup

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

    • Downloads MZ/PE file

    • 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.

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

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