Overview

overview

10

Static

static

10

Client.exe

windows7-x64

10

Client.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    Client.exe
  • Size 3.2MB
  • Sample240120-xkrnmsfca3
  • SHA256 c26c0c278655f9edd48624a9181f44b070dfd0e3331e910a76466f1373648e81
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04persistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 247.45.183.207:4782

Mutex

  • e18fc961-9411-45f1-a9d4-bd71bfe35096

Attributes
  • encryption_key

    4038901489FB4E8014A0DA74DC0CBFBD4D0D61E8

  • install_name

    fnspoofer.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    1 1 1 1 1

  • subdirectory

    SubDir

Targets

    • Target
      Client.exe
    • Size 3.2MB
    • SHA256 c26c0c278655f9edd48624a9181f44b070dfd0e3331e910a76466f1373648e81
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojanpersistence

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks