Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/10/2026, 23:47

General

  • Target
    jaffacakes118_Trojan.Win32.Agent.tyug.exe
  • Size 24KB
  • Sample261015-3tapdatwdz
  • SHA256 8cc24b1ab14a8ed32233967e2a34a04fd86865740a1063091640028a3a9717ca
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Executes a command shell one-liner 1 TTPs 4 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.tyug.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.tyug.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Windows\SysWOW64\cmd.exe
      cmd /d /c rename C:\WINDOWS\system32\Setup\blackbox.ocx C:\WINDOWS\system32\Setup\smss.exe && exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4684
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\WINDOWS\system32\Setup\smss.exe && exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4616
    • C:\Windows\SysWOW64\cmd.exe
      cmd /d /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsMessenger /t REG_SZ /d C:\WINDOWS\system32\messenger.exe && exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\reg.exe
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsMessenger /t REG_SZ /d C:\WINDOWS\system32\messenger.exe
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:4604
    • C:\Windows\SysWOW64\cmd.exe
      cmd /d /c reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsMessenger /t REG_SZ /d C:\WINDOWS\system32\messenger.exe && exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\SysWOW64\reg.exe
        reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsMessenger /t REG_SZ /d C:\WINDOWS\system32\messenger.exe
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:6056

Network

        MITRE ATT&CK Enterprise v16

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