General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241116-y4q2wstane

  • MD5

    9ff508735b3785e3697ad97896820845

  • SHA1

    01c2d68abbac2caefc163d389f43ec53798952cb

  • SHA256

    6470715a18148c46c345978216785766d8fa1548d3378dda685146d6e5cd6c7f

  • SHA512

    cf9ae7a63f1988c614d75b71da7244d3ea046120868dec2f6d85debd1d454a55531294da3cd02fb7e2fb02cca7f4457f819c06f9600dcc9940b11f45ea5c427b

  • SSDEEP

    49152:2vht62XlaSFNWPjljiFa2RoUYITrgCjhdGoGddTHHB72eh2NT:2vL62XlaSFNWPjljiFXRoUYITrgP

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.82:4782

Mutex

3783d7ca-3a06-404f-a250-4e9a22f8ac32

Attributes
  • encryption_key

    47D9E81F01D52C405867EC357C00214579A008BB

  • install_name

    sysupdate32.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    sysupdate32

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      9ff508735b3785e3697ad97896820845

    • SHA1

      01c2d68abbac2caefc163d389f43ec53798952cb

    • SHA256

      6470715a18148c46c345978216785766d8fa1548d3378dda685146d6e5cd6c7f

    • SHA512

      cf9ae7a63f1988c614d75b71da7244d3ea046120868dec2f6d85debd1d454a55531294da3cd02fb7e2fb02cca7f4457f819c06f9600dcc9940b11f45ea5c427b

    • SSDEEP

      49152:2vht62XlaSFNWPjljiFa2RoUYITrgCjhdGoGddTHHB72eh2NT:2vL62XlaSFNWPjljiFXRoUYITrgP

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks