Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 12:22

General

  • Target
    FireFox-uninstaller.exe
  • Size 20KB
  • Sample260729-pkafcswtcs
  • SHA256 8ea0168c63dadbd2184dad1ecdfac0d6f213607b9dd9e65d0dcfd0314548921c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 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\FireFox-uninstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\FireFox-uninstaller.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4596
    • C:\Windows\System32\conhost.exe
      C:\Windows\System32\conhost.exe
      2⤵
        PID:4044
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5816
        • C:\Windows\System32\reg.exe
          reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f
          3⤵
            PID:4228
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "GoogleUpdateTaskMachineQC"
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:852
          • C:\Windows\System32\schtasks.exe
            schtasks /delete /f /tn "GoogleUpdateTaskMachineQC"
            3⤵
              PID:5092

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              memory/4044-2-0x0000000140000000-0x0000000140004000-memory.dmp

              memory/4596-0-0x00007FF8EA99F000-0x00007FF8EA9A0000-memory.dmp

              memory/4596-1-0x00000000005F0000-0x00000000005FA000-memory.dmp

              memory/4596-3-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

              memory/4596-4-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

              memory/4596-5-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

              memory/4596-6-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

              memory/4596-7-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

              memory/4596-9-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp