Overview

overview

10

Static

static

5

dihwznbu32mudao4.exe

windows10-ltsc_2021-x64

10

dihwznbu32mudao4.exe

windows10-2004-x64

dihwznbu32mudao4.exe

windows11-21h2-x64

10

dihwznbu32mudao4.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    12s
  • max time network
    63s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/10/2026, 19:55

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

Errors

Reason
Machine shutdown

General

  • Target
    dihwznbu32mudao4.exe
  • Size 842KB
  • Sample261002-ynbbhassew
  • SHA256 789dfc020cc7dda48b64edf0bd1f146ff8531883429c972dfff7111e383eb64b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionpersistenceprivilege_escalation

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Looks up external IP address via web service 1 TTPs 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

    discovery
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Start PowerShell.

    execution
  • Drops file in Windows directory 4 IoCs
  • Executes a command shell one-liner 1 TTPs 3 IoCs

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

    execution
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies registry class 64 IoCs
  • 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 behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 43 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\dihwznbu32mudao4.exe
    "C:\Users\Admin\AppData\Local\Temp\dihwznbu32mudao4.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="b"hD\UIz\htM\F" dir=in action=allow program="C:\Windows\xdwd_Microsoft67" enable=yes & exit
      2⤵
        PID:2640
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\xdwd_Microsoft67" /RL HIGHEST & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:60
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\xdwd_Microsoft67" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2832
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /C taskkill /im explorer.exe /f > NUL 2>&1 && timeout /t 3 /nobreak > NUL && start explorer.exe
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1892
        • C:\Windows\system32\taskkill.exe
          taskkill /im explorer.exe /f
          3⤵
          • Loads dropped DLL
          • Kills process with taskkill
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2276
        • C:\Windows\system32\timeout.exe
          timeout /t 3 /nobreak
          3⤵
          • Loads dropped DLL
          • Delays execution with timeout.exe
          • Suspicious behavior: EnumeratesProcesses
          PID:3808
        • C:\Windows\explorer.exe
          explorer.exe
          3⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Loads dropped DLL
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:5104
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:1980
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4996
    • C:\Windows\xdwd_Microsoft67
      C:\Windows\xdwd_Microsoft67
      1⤵
        PID:3736
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmp77DC.tmp.exe"' & exit
          2⤵
          • Executes a command shell one-liner
          PID:3512
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmp77DC.tmp.exe"'
            3⤵
            • Command and Scripting Interpreter: PowerShell
            PID:220
            • C:\Users\Admin\AppData\Local\Temp\tmp77DC.tmp.exe
              "C:\Users\Admin\AppData\Local\Temp\tmp77DC.tmp.exe"
              4⤵
                PID:1552
        • C:\Windows\system32\msiexec.exe
          C:\Windows\system32\msiexec.exe /V
          1⤵
            PID:4100
          • C:\Windows\system32\LogonUI.exe
            "LogonUI.exe" /flags:0x4 /state0:0xa395e855 /state1:0x41c64e6d
            1⤵
              PID:1632

            Network

                  MITRE ATT&CK Enterprise v16

                  Reconnaissance

                  Resource Development

                  Initial Access

                  Execution

                  Command and Scripting Interpreter

                  2
                  T1059

                  PowerShell

                  1
                  T1059.001

                  Windows Command Shell

                  1
                  T1059.003

                  Scheduled Task/Job

                  1
                  T1053

                  Scheduled Task

                  1
                  T1053.005

                  Persistence

                  Boot or Logon Autostart Execution

                  2
                  T1547

                  Active Setup

                  1
                  T1547.014

                  Winlogon Helper DLL

                  1
                  T1547.004

                  Event Triggered Execution

                  1
                  T1546

                  AppInit DLLs

                  1
                  T1546.010

                  Scheduled Task/Job

                  1
                  T1053

                  Scheduled Task

                  1
                  T1053.005

                  Privilege Escalation

                  Boot or Logon Autostart Execution

                  2
                  T1547

                  Active Setup

                  1
                  T1547.014

                  Winlogon Helper DLL

                  1
                  T1547.004

                  Event Triggered Execution

                  1
                  T1546

                  AppInit DLLs

                  1
                  T1546.010

                  Scheduled Task/Job

                  1
                  T1053

                  Scheduled Task

                  1
                  T1053.005

                  Defense Evasion

                  Modify Registry

                  2
                  T1112

                  Credential Access

                  Discovery

                  Peripheral Device Discovery

                  2
                  T1120

                  Query Registry

                  3
                  T1012

                  System Information Discovery

                  2
                  T1082

                  System Network Configuration Discovery

                  2
                  T1016

                  Internet Connection Discovery

                  1
                  T1016.001

                  Lateral Movement

                  Collection

                  Command and Control

                  Exfiltration

                  Impact

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  0.0.filtertrie.intermediate.txt
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{c01c84cc-6db0-48f2-bfe3-dee3498066a8}\0.0.filtertrie.intermediate.txt
                  • Size 30KB
                  • SHA256 dbde1c7ce64381d0dd036ad858f25f15b295b61d353a74d294b03f84057455b5
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  0.1.filtertrie.intermediate.txt
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{c01c84cc-6db0-48f2-bfe3-dee3498066a8}\0.1.filtertrie.intermediate.txt
                  • Size 5B
                  • SHA256 8e1e6a3d56796a245d0c7b0849548932fee803bbdb03f6e289495830e017f14c
                  • MD5 SHA1 SHA512
                  Submit Download

                  0.2.filtertrie.intermediate.txt
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{c01c84cc-6db0-48f2-bfe3-dee3498066a8}\0.2.filtertrie.intermediate.txt
                  • Size 5B
                  • SHA256 d65b6a3bf11a27a1ced1f7e98082246e40cf01289fd47fe4a5ed46c221f2f73f
                  • MD5 SHA1 SHA512
                  Submit Download

                  Apps.ft
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{c01c84cc-6db0-48f2-bfe3-dee3498066a8}\Apps.ft
                  • Size 40KB
                  • SHA256 94c8c5fca08e446b66792b6afd1317d23a9fb1934e3bac3b8d8b800a3cb887e2
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  Apps.index
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{c01c84cc-6db0-48f2-bfe3-dee3498066a8}\Apps.index
                  • Size 1.0MB
                  • SHA256 7c2e528ef25d64c73ea57ce9c9ea9897adea8add514f1bef2f4730fc3c5395db
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  AppCache134354445590783793.txt.~tmp
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache134354445590783793.txt.~tmp
                  • Size 85KB
                  • SHA256 e0a2a34e1978f4af6247f342385003374c3eecfa70de64060655aced87862abd
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  ~ortanaUnifiedTileModelCache.tmp
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\TempState\~ortanaUnifiedTileModelCache.tmp
                  • Size 21KB
                  • SHA256 5d41361efc5d597b11c10570290b15bb1cd5151bcef58f1191bced3070c6b1e6
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  __PSScriptPolicyTest_jeiuawv2.0bl.ps1
                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jeiuawv2.0bl.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  tmp77DC.tmp.exe
                  • Path C:\Users\Admin\AppData\Local\Temp\tmp77DC.tmp.exe
                  • Size 3KB
                  • SHA256 13db59047310847b7b26436a401b1e1827b9600b5331ef04400659b3baf59243
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  xdwd.dll
                  • Path C:\Windows\xdwd.dll
                  • Size 136KB
                  • SHA256 35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  xdwd_Microsoft67
                  • Path C:\Windows\xdwd_Microsoft67
                  • Size 842KB
                  • SHA256 789dfc020cc7dda48b64edf0bd1f146ff8531883429c972dfff7111e383eb64b
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/220-288-0x0000024AFA3D0000-0x0000024AFA3F2000-memory.dmp
                  Download

                  memory/2276-37-0x00007FFF6C430000-0x00007FFF6C625000-memory.dmp
                  Download

                  memory/2276-34-0x00007FFF6C4CD000-0x00007FFF6C4CE000-memory.dmp
                  Download

                  memory/2276-36-0x00007FFF6C430000-0x00007FFF6C625000-memory.dmp
                  Download

                  memory/2456-49-0x000002049A130000-0x000002049A140000-memory.dmp
                  Download

                  memory/2456-1-0x000002049A130000-0x000002049A140000-memory.dmp
                  Download

                  memory/2456-0-0x00000204FF020000-0x00000204FF0F4000-memory.dmp
                  Download

                  memory/3736-276-0x0000028359690000-0x000002835969C000-memory.dmp
                  Download

                  memory/3736-256-0x00000283599F0000-0x0000028359A1E000-memory.dmp
                  Download

                  memory/4996-51-0x0000021640600000-0x0000021640700000-memory.dmp
                  Download

                  memory/4996-52-0x0000021640600000-0x0000021640700000-memory.dmp
                  Download

                  memory/4996-57-0x00000216415A0000-0x00000216415C0000-memory.dmp
                  Download

                  memory/4996-69-0x0000021641560000-0x0000021641580000-memory.dmp
                  Download

                  memory/4996-85-0x0000021641970000-0x0000021641990000-memory.dmp
                  Download

                  memory/5104-56-0x00000000052C0000-0x00000000052C1000-memory.dmp
                  Download