General

  • Target

    FpsBoosterUpdated.exe

  • Size

    348KB

  • Sample

    241103-wltnyszgka

  • MD5

    290b4ade8d6facb2bddad3eb853c1bcf

  • SHA1

    f86966d34bc407090f418192ebbd1bc88346b98e

  • SHA256

    91d3d30addc138a7e5792098b38e0d0600e4e81044372306d857ae05002a1e48

  • SHA512

    5d0ebf9b4d9fb1c88dac4be649e2e0fc88972d89fe5c090e02b0fcf736d26b57371bc6702195c37d2711c661afb685cb4bbf87d2224c2ae333051d6acfa8286b

  • SSDEEP

    6144:6vUhIvTCqLALgOnvbrXXmHbYNS2QabeCc2AW9E/rpW:INTCvn3X2yS25e72m/1W

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

    MvuLVFJdoxRMzV0zCtOV

  • install_name

    FpsBooster.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    FpsBooster

  • subdirectory

    SubDir

Targets

    • Target

      FpsBoosterUpdated.exe

    • Size

      348KB

    • MD5

      290b4ade8d6facb2bddad3eb853c1bcf

    • SHA1

      f86966d34bc407090f418192ebbd1bc88346b98e

    • SHA256

      91d3d30addc138a7e5792098b38e0d0600e4e81044372306d857ae05002a1e48

    • SHA512

      5d0ebf9b4d9fb1c88dac4be649e2e0fc88972d89fe5c090e02b0fcf736d26b57371bc6702195c37d2711c661afb685cb4bbf87d2224c2ae333051d6acfa8286b

    • SSDEEP

      6144:6vUhIvTCqLALgOnvbrXXmHbYNS2QabeCc2AW9E/rpW:INTCvn3X2yS25e72m/1W

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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