Overview

overview

10

Static

static

10

b6ab9db1c2...3d.exe

windows7_x64

10

b6ab9db1c2...3d.exe

windows10_x64

10

Sharing

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General

  • Target
    b6ab9db1c2c1e606268a6f613cfcdf3d
  • Size 348KB
  • Sample210623-2e5tpkwzka
  • SHA256 f4070df8414261f9d218626189c7d3c303457fc6ea442ea413a42131f57cca21
  • MD5 SHA1 SHA512
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.3.0.0

Botnet

  • Office04

C2

  • microsoftupdate001.duckdns.org:8181

Mutex

  • QSR_MUTEX_lcSkaiuYWXiGj5p7L5

Attributes
  • encryption_key

    IoLP1WwBgmTlOyHP9LJW

  • install_name

    Audio.exe

  • log_directory

    Logs

  • reconnect_delay

    2000

  • startup_key

    Realtek Audio Driver

  • subdirectory

    SubDir

Targets

    • Target
      b6ab9db1c2c1e606268a6f613cfcdf3d
    • Size 348KB
    • SHA256 f4070df8414261f9d218626189c7d3c303457fc6ea442ea413a42131f57cca21
    • MD5 SHA1 SHA512
    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 Enterprise v6

Tasks