Overview

overview

10

Static

static

10

77-Venom.exe

windows7_x64

10

77-Venom.exe

windows10_x64

10

Sharing

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General

  • Target
    77-Venom.exe
  • Size 576KB
  • Sample200815-r64bjdd2ae
  • SHA256 e83d13fcdc0f133482d558c8ce25b45a491ba3aff13849ce8169f05bb4972f0d
  • MD5 SHA1 SHA512
Score
10/10
orcusquasarvenomratoffice04evasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 2.1.0.0

Botnet

  • Office04

C2

  • 178.33.23.183:60000

Mutex

  • VNM_MUTEX_c2q7y2ayYutZ2XaYe7

Attributes
  • encryption_key

    EjSlCu0gcLJmleDu0lDT

  • install_name

    Discord.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Extracted

Family

  • orcus

C2

  • 2a03:75c0:27:cce0::1:587

Mutex

  • db4b0e3c31bf4b41bf8b2ec94ff95c0f

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %LOCALAPPDATA%\Discord\Discord.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Discord

  • watchdog_path

    AppData\Discord.exe

Targets

    • Target
      77-Venom.exe
    • Size 576KB
    • SHA256 e83d13fcdc0f133482d558c8ce25b45a491ba3aff13849ce8169f05bb4972f0d
    • MD5 SHA1 SHA512
    Score
    10/10
    quasarvenomratoffice04evasionratrootkitspywarestealertrojanorcus

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Orcus

      Orcus is a Remote Access Trojan that is being sold on underground forums.

      ratspywarestealerorcus

    • Orcus Main Payload

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

      ratrootkitstealervenomrat

    • Orcurs Rat Executable

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks