Overview

overview

10

Static

static

3

461E43DA65...3E.exe

windows10-2004-x64

10

461E43DA65...3E.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    461E43DA65ED883C46B72C095FD72A3E.exe
  • Size 8.4MB
  • Sample260828-c8x54ssfph
  • SHA256 33cc64e622a224df172252aad00278e8f085925414d5fac4e821f5f7596e8c8c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice365executionpersistenceprivilege_escalationspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office365

C2

  • 35.86.129.120:4782

Mutex

  • 901394fc-07f6-4354-9247-1690abbfd02f

Attributes
  • encryption_key

    D123D7F43D63545C7A8F643ACBE73E81F35C3F14

  • install_name

    Microsoft_Free_product.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    klogs

  • reconnect_delay

    3000

  • startup_key

    windowsClient Startup

  • subdirectory

    SubDir

Targets

    • Target
      461E43DA65ED883C46B72C095FD72A3E.exe
    • Size 8.4MB
    • SHA256 33cc64e622a224df172252aad00278e8f085925414d5fac4e821f5f7596e8c8c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office365executionquasarpersistenceprivilege_escalationspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks