General

  • Target

    Loader.exe

  • Size

    3.1MB

  • Sample

    240728-xs4m6syhnr

  • MD5

    6c0cfc9686b74302e726ddcc3252740e

  • SHA1

    a588ad7e2398448a1587576b1f90c9c59bcd78fc

  • SHA256

    342c074263edefc48959a9c15cb1cc05046c53a1607728eb6679f9c8303680a0

  • SHA512

    1e9ae56b2ee6bef507cfd3137616b1ea0ffb98c4e0bd5fdf429fb77d5c6ee475ee9d22edacdc883dd7e0bd2b2b6c0e13c43a55f8cf3c84b229a98f42fa1acc02

  • SSDEEP

    49152:PvyI22SsaNYfdPBldt698dBcjHE/Ta95fQ7k/tLoGdQTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHMa1

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.51:4782

Mutex

f27e08a6-ff49-4d45-95d3-6cd8cee7819a

Attributes
  • encryption_key

    9E15BDE09B20CFD0A6A2957840462A93B6C4BFD6

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Loader.exe

    • Size

      3.1MB

    • MD5

      6c0cfc9686b74302e726ddcc3252740e

    • SHA1

      a588ad7e2398448a1587576b1f90c9c59bcd78fc

    • SHA256

      342c074263edefc48959a9c15cb1cc05046c53a1607728eb6679f9c8303680a0

    • SHA512

      1e9ae56b2ee6bef507cfd3137616b1ea0ffb98c4e0bd5fdf429fb77d5c6ee475ee9d22edacdc883dd7e0bd2b2b6c0e13c43a55f8cf3c84b229a98f42fa1acc02

    • SSDEEP

      49152:PvyI22SsaNYfdPBldt698dBcjHE/Ta95fQ7k/tLoGdQTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHMa1

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks