Overview

overview

10

Static

static

10

lexisfixer.exe

windows10-2004-x64

10

lexisfixer.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    lexisfixer.exe
  • Size 3.1MB
  • Sample260115-nr5dmscz9f
  • SHA256 2711bcb30604fa69ae499c54e4cf7b3e4e2770fe9f0fb900634459d2496290b8
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 146.70.219.230:4781

Mutex

  • b9add369-65fa-42e3-a593-47a25b1531be

Attributes
  • encryption_key

    D24446CE261F1AF99736F9E7DDF4CC987D65E82E

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    windowssystem

  • subdirectory

    SubDir

Targets

    • Target
      lexisfixer.exe
    • Size 3.1MB
    • SHA256 2711bcb30604fa69ae499c54e4cf7b3e4e2770fe9f0fb900634459d2496290b8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks