Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/04/2026, 15:32

General

  • Target
    gamepulse.exe
  • Size 3.5MB
  • Sample260416-sym56ags41
  • SHA256 fa1b51658dea009762773097819f0ba9161cdf82b60d001220f501d423eb39b1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • GamePulse

C2
  • gbsuu.jp.net:4782

  • gbsuu.jp.net:443

  • audit.ru.com:1604

  • audit.ru.com:80

  • ransomware.it.com:443

  • ransomware.it.com:4782

  • ransomware.it.com:8848

  • ransomware.it.com:8888

  • ransomware.it.com:8080

  • icreate.jp.net:700

  • icreate.jp.net:3121

  • tubidy.co.com:700

  • tubidy.co.com:53

Mutex
  • GamePulse

Attributes
  • encryption_key

    2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED

  • install_name

    netWork.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    netWork

  • subdirectory

    %appdata%

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\gamepulse.exe
    "C:\Users\Admin\AppData\Local\Temp\gamepulse.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "netWork" /sc ONLOGON /tr "C:\Program Files\%appdata%\netWork.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1380
    • C:\Program Files\%appdata%\netWork.exe
      "C:\Program Files\%appdata%\netWork.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3404
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "netWork" /sc ONLOGON /tr "C:\Program Files\%appdata%\netWork.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3192

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        netWork.exe

        • Path C:\Program Files\%appdata%\netWork.exe
        • Size 3.5MB
        • SHA256 fa1b51658dea009762773097819f0ba9161cdf82b60d001220f501d423eb39b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2256-0-0x0000000000250000-0x00000000005CE000-memory.dmp

        memory/2256-1-0x000000001B270000-0x000000001B280000-memory.dmp

        memory/2256-7-0x0000000000D80000-0x0000000000D8C000-memory.dmp

        memory/3404-8-0x0000000002F40000-0x0000000002F50000-memory.dmp

        memory/3404-9-0x000000001C770000-0x000000001C7C0000-memory.dmp

        memory/3404-10-0x000000001C880000-0x000000001C932000-memory.dmp

        memory/3404-11-0x0000000002ED0000-0x0000000002EDC000-memory.dmp

        memory/3404-12-0x0000000002F40000-0x0000000002F50000-memory.dmp