General

  • Target

    Client-built(1).exe

  • Size

    3.1MB

  • Sample

    241115-x9xwyszkc1

  • MD5

    ef3e3811d92c8c39a9dbfa1b3d0dcece

  • SHA1

    8238396252ae7c164c0bca49163040f236fd5148

  • SHA256

    31ea3fc3712ff925dc56d07e2cae38724e16acd8c1ac719cb5704b4f40da7e55

  • SHA512

    f9941d6b7680bac92de5c5af99ccbd4fca77e207330ec918a5a6c4b73a17ae228f4a53a21f33e5491e591ccd970fa0a0a82abacb926c235650c7702555a20a46

  • SSDEEP

    49152:PvjI22SsaNYfdPBldt698dBcjHZGSxNESEjk/iGLoGd6CTHHB72eh2NT:Pvc22SsaNYfdPBldt6+dBcjH9x6I

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

146.0.191.34:4782

Mutex

89ec14d4-c260-40fa-a167-34d2cb269530

Attributes
  • encryption_key

    55CC02601E58E75BE97D8FB498B201E77070B65F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built(1).exe

    • Size

      3.1MB

    • MD5

      ef3e3811d92c8c39a9dbfa1b3d0dcece

    • SHA1

      8238396252ae7c164c0bca49163040f236fd5148

    • SHA256

      31ea3fc3712ff925dc56d07e2cae38724e16acd8c1ac719cb5704b4f40da7e55

    • SHA512

      f9941d6b7680bac92de5c5af99ccbd4fca77e207330ec918a5a6c4b73a17ae228f4a53a21f33e5491e591ccd970fa0a0a82abacb926c235650c7702555a20a46

    • SSDEEP

      49152:PvjI22SsaNYfdPBldt698dBcjHZGSxNESEjk/iGLoGd6CTHHB72eh2NT:Pvc22SsaNYfdPBldt6+dBcjH9x6I

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks