General

  • Target

    73e800bd58f15f7547c82a10f8ac9e0613ccd654f9f37a29e55b4b01285443a3

  • Size

    4.8MB

  • Sample

    231117-vhdb5abd69

  • MD5

    de06431dcca0d4d6c7fdcb0034018192

  • SHA1

    0bed3bc0023eefcdec74e4ab1ca0e6f7db5d8898

  • SHA256

    73e800bd58f15f7547c82a10f8ac9e0613ccd654f9f37a29e55b4b01285443a3

  • SHA512

    b57b039f11c5ac57674415a3849f24b52dce330bc1aae355739845c0eaac2ed47e0f132e675fd076919e04edb1529cd430104824a88c63755276a905528ca2f5

  • SSDEEP

    98304:oZA+0DyonvH22SsaNYfdPBldt6+dBcjHk/bzdIbzZDIbzZY:UKY7jsbzSeK

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

frp.deitie.asia:5555

Mutex

b827dda2-f30e-4465-be3c-2f1d6a93d4a7

Attributes
  • encryption_key

    465C04B3B0E08D663A071A4F330370E7A7DAD7A4

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      73e800bd58f15f7547c82a10f8ac9e0613ccd654f9f37a29e55b4b01285443a3

    • Size

      4.8MB

    • MD5

      de06431dcca0d4d6c7fdcb0034018192

    • SHA1

      0bed3bc0023eefcdec74e4ab1ca0e6f7db5d8898

    • SHA256

      73e800bd58f15f7547c82a10f8ac9e0613ccd654f9f37a29e55b4b01285443a3

    • SHA512

      b57b039f11c5ac57674415a3849f24b52dce330bc1aae355739845c0eaac2ed47e0f132e675fd076919e04edb1529cd430104824a88c63755276a905528ca2f5

    • SSDEEP

      98304:oZA+0DyonvH22SsaNYfdPBldt6+dBcjHk/bzdIbzZDIbzZY:UKY7jsbzSeK

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Drops file in System32 directory

MITRE ATT&CK Matrix

Tasks