General

  • Target

    b64b141eb3b3fa67f6605eb99b0e6f78eb5df7d483a2a0889821ccfac71a7a96.exe

  • Size

    288KB

  • Sample

    241217-ezxt4a1pfk

  • MD5

    d0d7ce7681200387de77c7ab2e2841cd

  • SHA1

    8b6c4315e260954b6c33f450ad3baa9f79fe72e2

  • SHA256

    b64b141eb3b3fa67f6605eb99b0e6f78eb5df7d483a2a0889821ccfac71a7a96

  • SHA512

    bc3cfac3450cbc17ce8c9758f10c7e4034764f40a6797edd4a8eb6e95d6db9c5f46a46487a6e483ef0eed23243e9f92c0ea391a0416ebbc6854e2b9914ad9788

  • SSDEEP

    6144:w7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbk9n:OlJtTF9zVGkllbkh

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office

C2

82.117.243.110:5173

Mutex

yfsS9ida0wX8mgpdJC

Attributes
  • encryption_key

    KDNBgA8jiBeGX1rj1dDt

  • install_name

    csrss.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    NET framework

  • subdirectory

    SubDir

Targets

    • Target

      b64b141eb3b3fa67f6605eb99b0e6f78eb5df7d483a2a0889821ccfac71a7a96.exe

    • Size

      288KB

    • MD5

      d0d7ce7681200387de77c7ab2e2841cd

    • SHA1

      8b6c4315e260954b6c33f450ad3baa9f79fe72e2

    • SHA256

      b64b141eb3b3fa67f6605eb99b0e6f78eb5df7d483a2a0889821ccfac71a7a96

    • SHA512

      bc3cfac3450cbc17ce8c9758f10c7e4034764f40a6797edd4a8eb6e95d6db9c5f46a46487a6e483ef0eed23243e9f92c0ea391a0416ebbc6854e2b9914ad9788

    • SSDEEP

      6144:w7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbk9n:OlJtTF9zVGkllbkh

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • 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