Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 13:28

General

  • Target
    OUninstall.exe
  • Size 2.9MB
  • Sample261024-qqwffsh191
  • SHA256 ca9522744e96899df991c073c66a65a86b753c12bba71a83a28cd73f4f330b1c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 11 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 11 IoCs
  • Executes a command shell one-liner 1 TTPs 12 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 24 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OUninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\OUninstall.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4480
    • C:\Windows\system32\cmd.exe
      "C:\Windows\Sysnative\cmd.exe" /c WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\OUninstall.exe"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\System32\Wbem\WMIC.exe
        WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\OUninstall.exe"
        3⤵
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1960
    • C:\Windows\system32\reg.exe
      "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
      2⤵
        PID:4616
      • C:\Windows\system32\cmd.exe
        "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4216
        • C:\Users\Admin\AppData\Local\Temp\files\files.exe
          files.exe -y -pkmsauto
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1624
      • C:\Windows\system32\cscript.exe
        "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
        2⤵
        • Executes a VBScript file via the Windows Script Host.
        • Reads the TCP/IP host and domain name from the registry
        PID:5644
      • C:\Windows\system32\reg.exe
        "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
        2⤵
          PID:436
        • C:\Windows\system32\cmd.exe
          "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:5812
          • C:\Users\Admin\AppData\Local\Temp\files\files.exe
            files.exe -y -pkmsauto
            3⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2292
        • C:\Windows\system32\cscript.exe
          "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
          2⤵
          • Executes a VBScript file via the Windows Script Host.
          • Reads the TCP/IP host and domain name from the registry
          PID:5008
        • C:\Windows\system32\reg.exe
          "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
          2⤵
            PID:4476
          • C:\Windows\system32\cmd.exe
            "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
            2⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:2012
            • C:\Users\Admin\AppData\Local\Temp\files\files.exe
              files.exe -y -pkmsauto
              3⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:4576
          • C:\Windows\system32\cscript.exe
            "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
            2⤵
            • Executes a VBScript file via the Windows Script Host.
            • Reads the TCP/IP host and domain name from the registry
            PID:2528
          • C:\Windows\system32\reg.exe
            "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
            2⤵
              PID:5036
            • C:\Windows\system32\cmd.exe
              "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
              2⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:4516
              • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                files.exe -y -pkmsauto
                3⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:3248
            • C:\Windows\system32\cscript.exe
              "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
              2⤵
              • Executes a VBScript file via the Windows Script Host.
              • Reads the TCP/IP host and domain name from the registry
              PID:4088
            • C:\Windows\system32\reg.exe
              "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
              2⤵
                PID:1560
              • C:\Windows\system32\cmd.exe
                "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                2⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:3576
                • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                  files.exe -y -pkmsauto
                  3⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:2208
              • C:\Windows\system32\cscript.exe
                "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                2⤵
                • Executes a VBScript file via the Windows Script Host.
                • Reads the TCP/IP host and domain name from the registry
                PID:4864
              • C:\Windows\system32\reg.exe
                "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                2⤵
                  PID:4288
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                  2⤵
                  • Executes a command shell one-liner
                  • Suspicious use of WriteProcessMemory
                  PID:1840
                  • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                    files.exe -y -pkmsauto
                    3⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:3872
                • C:\Windows\system32\cscript.exe
                  "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                  2⤵
                  • Executes a VBScript file via the Windows Script Host.
                  • Reads the TCP/IP host and domain name from the registry
                  PID:2892
                • C:\Windows\system32\reg.exe
                  "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                  2⤵
                    PID:2720
                  • C:\Windows\system32\cmd.exe
                    "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                    2⤵
                    • Executes a command shell one-liner
                    • Suspicious use of WriteProcessMemory
                    PID:3388
                    • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                      files.exe -y -pkmsauto
                      3⤵
                      • Executes dropped EXE
                      • System Location Discovery: System Language Discovery
                      PID:4616
                  • C:\Windows\system32\cscript.exe
                    "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                    2⤵
                    • Executes a VBScript file via the Windows Script Host.
                    • Reads the TCP/IP host and domain name from the registry
                    PID:1624
                  • C:\Windows\system32\reg.exe
                    "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                    2⤵
                      PID:4280
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                      2⤵
                      • Executes a command shell one-liner
                      • Suspicious use of WriteProcessMemory
                      PID:1860
                      • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                        files.exe -y -pkmsauto
                        3⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:700
                    • C:\Windows\system32\cscript.exe
                      "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                      2⤵
                      • Executes a VBScript file via the Windows Script Host.
                      • Reads the TCP/IP host and domain name from the registry
                      PID:5472
                    • C:\Windows\system32\reg.exe
                      "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                      2⤵
                        PID:1916
                      • C:\Windows\system32\cmd.exe
                        "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                        2⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:2084
                        • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                          files.exe -y -pkmsauto
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:4476
                      • C:\Windows\system32\cscript.exe
                        "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                        2⤵
                        • Executes a VBScript file via the Windows Script Host.
                        • Reads the TCP/IP host and domain name from the registry
                        PID:1188
                      • C:\Windows\system32\reg.exe
                        "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                        2⤵
                          PID:4576
                        • C:\Windows\system32\cmd.exe
                          "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                          2⤵
                          • Executes a command shell one-liner
                          • Suspicious use of WriteProcessMemory
                          PID:3312
                          • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                            files.exe -y -pkmsauto
                            3⤵
                            • Executes dropped EXE
                            • System Location Discovery: System Language Discovery
                            PID:6004
                        • C:\Windows\system32\cscript.exe
                          "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                          2⤵
                          • Executes a VBScript file via the Windows Script Host.
                          • Reads the TCP/IP host and domain name from the registry
                          PID:3404
                        • C:\Windows\system32\reg.exe
                          "C:\Windows\Sysnative\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings" /v Enabled /t REG_DWORD /d 1 /f
                          2⤵
                            PID:3208
                          • C:\Windows\system32\cmd.exe
                            "C:\Windows\Sysnative\cmd.exe" /c files.exe -y -pkmsauto
                            2⤵
                            • Executes a command shell one-liner
                            • Suspicious use of WriteProcessMemory
                            PID:2328
                            • C:\Users\Admin\AppData\Local\Temp\files\files.exe
                              files.exe -y -pkmsauto
                              3⤵
                              • Executes dropped EXE
                              • System Location Discovery: System Language Discovery
                              PID:6120
                          • C:\Windows\system32\cscript.exe
                            "C:\Windows\Sysnative\cscript.exe" //NoLogo OffScrubC2R.vbs ALL /NoCancel /OSE 2>&1
                            2⤵
                            • Executes a VBScript file via the Windows Script Host.
                            • Reads the TCP/IP host and domain name from the registry
                            PID:4844
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k GPSvcGroup
                          1⤵
                            PID:5872

                          Network

                                MITRE ATT&CK Enterprise v16

                                Replay Monitor

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                                Downloads

                                ScrubRetValFile.txt

                                • Path C:\Users\Admin\AppData\Local\Temp\OffScrubC2R\ScrubRetValFile.txt
                                • Size 24B
                                • SHA256 44119689fd681e69b50ff356faccd21bc3dfba827564dc1540910e7ee4fed75e
                                • MD5 SHA1 SHA512

                                OffScrubC2R.vbs

                                • Path C:\Users\Admin\AppData\Local\Temp\files\OffScrubC2R.vbs
                                • Size 163KB
                                • SHA256 ff40619539bcfb5340d2a33dbc1a1e7b80c68e2c1e10c2aa4ca4a44087962098
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Uninstall.xml

                                • Path C:\Users\Admin\AppData\Local\Temp\files\Uninstall.xml
                                • Size 59B
                                • SHA256 09d5b42140bab13165ba97fbd0e77792304c3c93555be02c3dce21a7a69c66dd
                                • MD5 SHA1 SHA512 TLSH

                                files.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\files\files.exe
                                • Size 765KB
                                • SHA256 4e3b13b56bec0e41778e6506430282bbbd75ccaa600fd4b645ce37dd95b44c8e
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                cleanospp.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\files\x64\cleanospp.exe
                                • Size 28KB
                                • SHA256 edf85f4e2ef1a427b34265a22f261d664ec78de90c3b5da4174ef28558c8522a
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                msvcr100.dll

                                • Path C:\Users\Admin\AppData\Local\Temp\files\x64\msvcr100.dll
                                • Size 809KB
                                • SHA256 1d1a1ae540ba132f998d60d3622f0297b6e86ae399332c3b47462d7c0f560a36
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                cleanospp.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\files\x86\cleanospp.exe
                                • Size 25KB
                                • SHA256 04ba4487f95290e0b0557b44300c18f637fbaf0872ee96e3111013b8a1539f25
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                msvcr100.dll

                                • Path C:\Users\Admin\AppData\Local\Temp\files\x86\msvcr100.dll
                                • Size 755KB
                                • SHA256 60c06e0fa4449314da3a0a87c1a9d9577df99226f943637e06f61188e5862efa
                                • MD5 SHA1 SHA512 SSDEEP TLSH