Overview

overview

10

Static

static

10

Client-built.exe

windows10-1703-x64

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Resubmissions

19/04/2024, 22:32

240419-2f4jvsab4t10

19/04/2024, 22:30

240419-2e2c4saa9110

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample240419-2f4jvsab4t
  • SHA256 97cd6ad3a56efc266ba1860e2d1c5958094b988be74bd36e9499d22fdaed9c59
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.1.139:4782

Mutex

  • e12e9d8f-f86f-4c20-aaa9-ca4ae3df9435

Attributes
  • encryption_key

    8A5C503C69142D8C1F9A30FB7AA52FB2729B3861

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 97cd6ad3a56efc266ba1860e2d1c5958094b988be74bd36e9499d22fdaed9c59
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks