Overview

overview

10

Static

static

1

ea0dbb78a3...48.cmd

windows7-x64

8

ea0dbb78a3...48.cmd

windows10-2004-x64

10

Sharing

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General

  • Target
    ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848.cmd
  • Size 2.0MB
  • Sample241111-dn17ps1jfv
  • SHA256 ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04defense_evasionexecutionspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • walkout.ddnsgeek.com:8080

Mutex

  • 27391f85-a482-471a-b2cd-1f8ab5bde32e

Attributes
  • encryption_key

    6469F8C5BA9A2CFDCF4A3F1651D1E92DBEA41117

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848.cmd
    • Size 2.0MB
    • SHA256 ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    executionquasaroffice04defense_evasionspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Executes dropped EXE

    • Loads dropped DLL

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks