Analysis

  • max time kernel
    12s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/10/2026, 16:51

General

  • Target
    ff168th.exe
  • Size 3.1MB
  • Sample261028-vc4l5asycs
  • SHA256 fb20ff7b3d6248aceff4a2688012fe327e6a8495b7b3dc3d3234c3a8b7e0c22d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • ff168th.com

C2
  • ff168th.com:43

  • ff168th.com:443

  • ff168th.com:80

  • ff168th.com:8080

  • ff168th.com:81

Mutex
  • a6482eca-7ed8-4d5f-b854-54572cccf00b

Attributes
  • encryption_key

    61D61573755A2E8791F777F44FE72A8C404B3F90

  • install_name

    mozilla.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    https://ff168th.com/

  • subdirectory

    f168

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff168th.exe
    "C:\Users\Admin\AppData\Local\Temp\ff168th.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4168
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "https://ff168th.com/" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\f168\mozilla.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2480
    • C:\Users\Admin\AppData\Roaming\f168\mozilla.exe
      "C:\Users\Admin\AppData\Roaming\f168\mozilla.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3992
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "https://ff168th.com/" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\f168\mozilla.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2176
  • C:\Users\Admin\AppData\Roaming\f168\mozilla.exe
    C:\Users\Admin\AppData\Roaming\f168\mozilla.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4832

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        mozilla.exe

        • Path C:\Users\Admin\AppData\Roaming\f168\mozilla.exe
        • Size 3.1MB
        • SHA256 fb20ff7b3d6248aceff4a2688012fe327e6a8495b7b3dc3d3234c3a8b7e0c22d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3992-24-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/3992-23-0x000000001C690000-0x000000001C742000-memory.dmp

        memory/3992-22-0x000000001C580000-0x000000001C5D0000-memory.dmp

        memory/3992-19-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/3992-18-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/3992-17-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/3992-16-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-6-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-8-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-10-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-11-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-12-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-13-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-14-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-9-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-7-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-0-0x00007FFEA7B8F000-0x00007FFEA7B90000-memory.dmp

        memory/4168-5-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-4-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-20-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-3-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-2-0x00007FFEA7A00000-0x00007FFEA83A4000-memory.dmp

        memory/4168-1-0x0000000000FE0000-0x0000000001304000-memory.dmp