Overview

overview

10

Static

static

3

2026-11-05...er.exe

windows10-2004-x64

10

2026-11-05...er.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-11-05_bfe261d58b55c2cdde4a74fb53849e08_akira_blankgrabber_glassworm_icedid_luca-stealer_njrat_rusty-stealer
  • Size 80.8MB
  • Sample261106-mqg2aabf73
  • SHA256 f06bbfa37e84b872204782a47d3e577dd1a13ba64b2f8a86da0bdf3bd36fb39f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 50.114.179.108:9108

Mutex

  • 3c895c84-d59b-434c-a646-f6d0ffae5442

Attributes
  • encryption_key

    2DC6A25B20D70CE3C74F4271B056E37007AD31B9

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      2026-11-05_bfe261d58b55c2cdde4a74fb53849e08_akira_blankgrabber_glassworm_icedid_luca-stealer_njrat_rusty-stealer
    • Size 80.8MB
    • SHA256 f06bbfa37e84b872204782a47d3e577dd1a13ba64b2f8a86da0bdf3bd36fb39f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04discoveryquasarspywaretrojan

    • 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

    • Checks computer location settings

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks