Overview

overview

10

Static

static

10

2026-08-22...rm.exe

windows10-2004-x64

10

2026-08-22...rm.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-08-22_1fd2a7dd74f9148b30ef3e5bc0669ddb_cobalt-strike_coinminer_frostygoop_ghostlocker_glassworm_hive_luca-stealer_poet-rat_quasar-rat_salatstealer_sliver_xrat
  • Size 5.0MB
  • Sample260822-e7w8jaeq7y
  • SHA256 a6bb3d4a2f21d63a5c7d1376fa9d3fdf8b4e1c7b5d774bf57704aae12c5b329f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • 127.0.0.1:4782

Mutex

  • c106d00e-1619-4d10-8e0d-9e15186e4f09

Attributes
  • encryption_key

    995AEFDA265DE1955C899268E6A6FE6FF9BC0BB0

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      2026-08-22_1fd2a7dd74f9148b30ef3e5bc0669ddb_cobalt-strike_coinminer_frostygoop_ghostlocker_glassworm_hive_luca-stealer_poet-rat_quasar-rat_salatstealer_sliver_xrat
    • Size 5.0MB
    • SHA256 a6bb3d4a2f21d63a5c7d1376fa9d3fdf8b4e1c7b5d774bf57704aae12c5b329f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04quasarspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers

    • Detects executables containing common artifacts observed in infostealers

    behavioral1behavioral2

MITRE ATT&CK Matrix

Tasks