General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240410-nebwkadg28

  • MD5

    23aaf5e0d106b0f8ce7b98ebb248fa35

  • SHA1

    898101610b796f5d50de183a04ff029dbc6be064

  • SHA256

    bf4b331a3329acc0925ed37d55dc9ff54934eeaa30547e4221ae8c10aa5b1658

  • SHA512

    d1d88cbe426ee916cd4f64aa2dd1a6efd1ab223c7e7d191feb4d2653b6886f8bf1cbf5e07184e3854571575e0b10da6ed016efd61c5c3e5f9bcde865e03b2b40

  • SSDEEP

    49152:DvjI22SsaNYfdPBldt698dBcjH4bRJ6ubR3LoGdRPTHHB72eh2NT:Dvc22SsaNYfdPBldt6+dBcjH4bRJ6oB

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.115:4782

Mutex

cf2c53c5-bc92-40a0-b53b-7c5edbcd7ef3

Attributes
  • encryption_key

    EAFB08E07600E62659A174CCF3C54BA2CDDDD47A

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      23aaf5e0d106b0f8ce7b98ebb248fa35

    • SHA1

      898101610b796f5d50de183a04ff029dbc6be064

    • SHA256

      bf4b331a3329acc0925ed37d55dc9ff54934eeaa30547e4221ae8c10aa5b1658

    • SHA512

      d1d88cbe426ee916cd4f64aa2dd1a6efd1ab223c7e7d191feb4d2653b6886f8bf1cbf5e07184e3854571575e0b10da6ed016efd61c5c3e5f9bcde865e03b2b40

    • SSDEEP

      49152:DvjI22SsaNYfdPBldt698dBcjH4bRJ6ubR3LoGdRPTHHB72eh2NT:Dvc22SsaNYfdPBldt6+dBcjH4bRJ6oB

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks