Overview

overview

7

Static

static

3

KUZAAA.exe

windows11-21h2-x64

7

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    07/11/2026, 18:44

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General

  • Target
    KUZAAA.exe
  • Size 188KB
  • Sample261107-xdp68set7x
  • SHA256 e0c076ce1ed059e95fadef9548ee6596548605add6f17b0381214541c73bcd74
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
bootkitexecutionpersistence

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Power Settings 1 TTPs 1 IoCs

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    persistence
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\KUZAAA.exe
    "C:\Users\Admin\AppData\Local\Temp\KUZAAA.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:584
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /create /f /sc minute /mo 1 /tn "KUZAAA" /tr "C:\Users\Admin\AppData\Roaming\KUZAAA.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:752
    • C:\Windows\SYSTEM32\powercfg.exe
      "powercfg" /h off
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:652
    • C:\Windows\SYSTEM32\mountvol.exe
      "mountvol" Z: /s
      2⤵
        PID:648
      • C:\Windows\SYSTEM32\mountvol.exe
        "mountvol" Z: /d
        2⤵
        • Enumerates connected drives
        PID:4452
    • C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      1⤵
      • Executes dropped EXE
      PID:3516
    • C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      1⤵
      • Executes dropped EXE
      PID:4548
    • C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      1⤵
      • Executes dropped EXE
      PID:4936
    • C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      C:\Users\Admin\AppData\Roaming\KUZAAA.exe
      1⤵
      • Executes dropped EXE
      PID:792

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads

          KUZAAA.exe.log
          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\KUZAAA.exe.log
          • Size 42B
          • SHA256 d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b
          • MD5 SHA1 SHA512
          Submit Download

          KUZAAA.exe
          • Path C:\Users\Admin\AppData\Roaming\KUZAAA.exe
          • Size 188KB
          • SHA256 e0c076ce1ed059e95fadef9548ee6596548605add6f17b0381214541c73bcd74
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/584-0-0x0000000000A60000-0x0000000000A96000-memory.dmp
          Download

          memory/584-2-0x000000001C710000-0x000000001C720000-memory.dmp
          Download

          memory/584-6-0x000000001C710000-0x000000001C720000-memory.dmp
          Download