Overview

overview

10

Static

static

10

Client-built.exe

windows10-ltsc_2021-x64

10

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample260419-vr61ssfs4q
  • SHA256 83c4a5e97fbecfb93ef4ac297ce8e6870da08a2e69b8ccd54e730ebb9928eed6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • thankyou.servehalflife.com:4782

Mutex

  • 1fda2b73-e6b9-46ba-bb0c-ffaa6ca06f90

Attributes
  • encryption_key

    64956975C2CBF5FD86285F0720015586D1DFDD42

  • install_name

    Microsoft_sql_server.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft Realtek

  • subdirectory

    MicrosoftWindowsSecurity

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 83c4a5e97fbecfb93ef4ac297ce8e6870da08a2e69b8ccd54e730ebb9928eed6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks