General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    250327-tvvw9svvby

  • MD5

    d99d7d556d5021fbd6926bc2dbf937cb

  • SHA1

    a84dba6c50fb7a9fb96a88034a0b0beca902d816

  • SHA256

    a94e45818c0b816f85d0c2608c0a1b03e75090b2c5930f20a42c7d127579e5e9

  • SHA512

    41b1f8b7887d6288bdc868ce941c2368e576503c272e0a48f9c662e67ee253ea62c5cef3a34a25d15515e37175465c281f8219450542c18db7d5326423cae8c9

  • SSDEEP

    49152:Wvkt62XlaSFNWPjljiFa2RoUYI59RJ6ubR3LoGdroTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYI59RJ6ob

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.20:4782

Mutex

09fd8aa4-f8ef-40d0-96f7-029c82b74a3a

Attributes
  • encryption_key

    5FA4C5B780FA0149296752FBE0A794A5BF0E5B11

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    dont mind this

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      d99d7d556d5021fbd6926bc2dbf937cb

    • SHA1

      a84dba6c50fb7a9fb96a88034a0b0beca902d816

    • SHA256

      a94e45818c0b816f85d0c2608c0a1b03e75090b2c5930f20a42c7d127579e5e9

    • SHA512

      41b1f8b7887d6288bdc868ce941c2368e576503c272e0a48f9c662e67ee253ea62c5cef3a34a25d15515e37175465c281f8219450542c18db7d5326423cae8c9

    • SSDEEP

      49152:Wvkt62XlaSFNWPjljiFa2RoUYI59RJ6ubR3LoGdroTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYI59RJ6ob

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks