Overview

overview

10

Static

static

10

bfaa90c6e3...0a.exe

windows7-x64

10

bfaa90c6e3...0a.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    bfaa90c6e3aacd9d9b83a4f8f0f74b0a
  • Size 534KB
  • Sample220718-ngltjsdaan
  • SHA256 6d00a6b8d581813e8af3114968274f89978b40d400c8eef2bf7e09192f5ec9e6
  • MD5 SHA1 SHA512
Score
10/10
quasarvenomratoffice04ratrootkitspywarestealersuricatatrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 2.1.0.0

Botnet

  • Office04

C2

  • 127.0.0.1:4782

Mutex

  • VNM_MUTEX_c2q7y2ayYutZ2XaYe7

Attributes
  • encryption_key

    NTih4UsOfv91J9azm70k

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      bfaa90c6e3aacd9d9b83a4f8f0f74b0a
    • Size 534KB
    • SHA256 6d00a6b8d581813e8af3114968274f89978b40d400c8eef2bf7e09192f5ec9e6
    • MD5 SHA1 SHA512
    Score
    10/10
    quasarvenomratoffice04ratrootkitspywarestealersuricatatrojan

    • Contains code to disable Windows Defender

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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • VenomRAT

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

      ratrootkitstealervenomrat

    • suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata: ET MALWARE Common RAT Connectivity Check Observed

      suricata

    • suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 2

      suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 2

      suricata

    • suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3

      suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3

      suricata

    • Looks up external IP address via web service

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

    behavioral1behavioral2

MITRE ATT&CK Matrix

Tasks