General

  • Target
    https://github.com/Cryakl/Ultimate-RAT-Collection/tree/main/XWorm/Mods/Collapse%20HVNC%20Rat%20v1.5
  • Sample251216-npv27aymel

Malware Config

Extracted

Family
  • asyncrat

Version
  • Collapse RAT & HVNC 1.0.0

Mutex
  • lmgbxfutknlhi

Attributes
  • delay

    1

  • install

    false

  • local_host

    127.0.0.1

aes.plain

Extracted

Family
  • arrowrat

Botnet
  • Client

C2
  • 127.0.0.1:1337

Mutex
  • ZOXEEDLIj

Targets

    • Target
      https://github.com/Cryakl/Ultimate-RAT-Collection/tree/main/XWorm/Mods/Collapse%20HVNC%20Rat%20v1.5
    • 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

    • 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

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks