Overview

overview

10

Static

static

3

Seed (infected).7z

windows10-2004-x64

10

Sharing

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General

  • Target
    Seed (infected).7z
  • Size 1.2MB
  • Sample250905-j3db3stpx3
  • SHA256 02520e7ad8dcdc2ca21c7bb9e6d9985834c8adeabcfb27334abf8a6787963d7f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasarsystem32discoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://iredi.lu/quasar/Client-built.exe

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • system32

C2

  • othmanesp.ddns.net:7000

Mutex

  • 49a659e4-c7ed-4e8d-aa2d-21976dbb9e5c

Attributes
  • encryption_key

    76CF9571D653146AD0E018CBA7B97D77CA420587

  • install_name

    system.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    logs

  • reconnect_delay

    3000

  • startup_key

    Audio Driver

  • subdirectory

    win

Targets

    • Target
      Seed (infected).7z
    • Size 1.2MB
    • SHA256 02520e7ad8dcdc2ca21c7bb9e6d9985834c8adeabcfb27334abf8a6787963d7f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    system32discoveryexecutionquasarpersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

      execution

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks