Overview

overview

10

Static

static

10

loader.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    loader.exe
  • Size 2.6MB
  • Sample260718-efj4wsfv7k
  • SHA256 bc69d5f3877ffb4bc65b9d314d04817c84ee86fc159923337853968000270d5b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defendnotquasarretardsdiscoveryexecutionhacktoolpersistenceprivilege_escalationspywarestealertrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.6.6

Botnet

  • RETARDS

C2

  • portbuddy.dev:43689

Mutex

  • b37c4cbf-68f4-4e7c-92ba-ac265729eb51

Attributes
  • encryption_key

    7799F230382DEC15CFC54F1D560B5A8B875621D2

  • install_name

    .exe

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Targets

    • Target
      loader.exe
    • Size 2.6MB
    • SHA256 bc69d5f3877ffb4bc65b9d314d04817c84ee86fc159923337853968000270d5b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    retardsdiscoveryexecutiondefendnotquasarhacktoolpersistenceprivilege_escalationspywarestealertrojan

    • Detects Defendnot

    • Family: Defendnot

      Defendnot is a tool designed to disable Microsoft Defender.

      hacktooldefendnot

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer
    behavioral1

MITRE ATT&CK Enterprise v16

Tasks