Overview

overview

10

Static

static

10

83d1e736a7...70.exe

windows7-x64

10

83d1e736a7...70.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    83d1e736a793ba5d14b51f8ef8310bf13a2591fc40ad34d1fa3e74acf5d40c70.exe
  • Size 3.1MB
  • Sample240307-cys4eadd26
  • SHA256 83d1e736a793ba5d14b51f8ef8310bf13a2591fc40ad34d1fa3e74acf5d40c70
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 209.182.234.69:5000

Mutex

  • 1d7ed661-c682-43f5-973b-fc9bfdbd96a8

Attributes
  • encryption_key

    ABD5B6E1498842B0D7FFC59005525F3510E9622D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      83d1e736a793ba5d14b51f8ef8310bf13a2591fc40ad34d1fa3e74acf5d40c70.exe
    • Size 3.1MB
    • SHA256 83d1e736a793ba5d14b51f8ef8310bf13a2591fc40ad34d1fa3e74acf5d40c70
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojan

    • 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 Enterprise v15

Tasks