General

  • Target

    test.exe

  • Size

    348KB

  • Sample

    250209-3jd9tawkfr

  • MD5

    2f671e7ebc050b4f024988ef32316937

  • SHA1

    73a69d7d9ed1c8a63d626edf59702b470d2d6650

  • SHA256

    25f2d280e685bf93f437553620a4b4e89d362205af34c22263bcd6bb33386fe3

  • SHA512

    86f0a286e39040a86504c306f9587e840d8ea74bfaaaee5105f0689434b4e433ab5c30032077a8e3e7eae697a65ebae3a09001434a31f9ac5863c323d2d7d7be

  • SSDEEP

    3072:hjrN+Jhi1vwWdCqLlpyDcsvPBsPJ+bgCr8a8JLEThlbVBD5JVWt8nwU69r4rUYT1:hHUhIvTCqLyR0LtUbPdv69r4rUYTMm

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

127.0.0.1:4782

Mutex

QSR_MUTEX_n0f6at7YDD5llBKKrq

Attributes
  • encryption_key

    WTfCCpEEZrrjQU0Hwnaj

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    csrss.exe

  • subdirectory

    SubDir

Targets

    • Target

      test.exe

    • Size

      348KB

    • MD5

      2f671e7ebc050b4f024988ef32316937

    • SHA1

      73a69d7d9ed1c8a63d626edf59702b470d2d6650

    • SHA256

      25f2d280e685bf93f437553620a4b4e89d362205af34c22263bcd6bb33386fe3

    • SHA512

      86f0a286e39040a86504c306f9587e840d8ea74bfaaaee5105f0689434b4e433ab5c30032077a8e3e7eae697a65ebae3a09001434a31f9ac5863c323d2d7d7be

    • SSDEEP

      3072:hjrN+Jhi1vwWdCqLlpyDcsvPBsPJ+bgCr8a8JLEThlbVBD5JVWt8nwU69r4rUYT1:hHUhIvTCqLyR0LtUbPdv69r4rUYTMm

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Downloads MZ/PE file

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks