Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 18:23

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.2MB
  • Sample260625-w1tx9set91
  • SHA256 f51fd9780a223fc2dc5f1f821cb935745c27d852b47b01d3e6e984dea5bfaec3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

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

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 50 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5792
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\bbe1694f4393c6ac\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:6832
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • 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:1920
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DF4D62F74E678A91A0035FCED2DDA238 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6764
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724828 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6236
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2E1C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725546 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5200
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI32E0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726781 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2764
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5612
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7C0E10E8C06EAC9D433F90B3208C923C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6720
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6F552A2580104A3A52D404DB8D749859 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4216
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4328
    • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-icc2hi-relay.screenconnect.com&p=443&s=e05c29fc-4a9f-4812-8e77-97c1d95d251a&k=BgIAAACkAABSU0ExAAgAAAEAAQAJDHZEg9jJtP%2blIpaQISytmZmxxmoVuKc1RtQqN9vu8pNmmG5FPpQr9egqkNxSBdh2%2fjgoPgUTIf0eKv2BA7BrIm3ZCzOMAHNPAkUAB%2fsVBJoEwcH2Zyi9NEAlWR3w7EZ9lPukCbtRZAG92dkn6UBMRiAJFutTM%2ffL7iRM9gnjAPvTr8C74JtNZ8ylNtyRVbb9rQYGvIO4hxwO5hIAPJrnJ2IKZM5QFsCCk%2frqNjID6KLercUmB0w6xfERMEHiy5Nuhjb8tv3CbKxjafzp1IeCrPplo5HkJSvIH%2fqVcy%2fAvGKzp2BIQS9HkNncoguoRwfSc8bHJtrmWkCswtLAdIuz&c=Newpark%20Drilling%20Fluids&c=India&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:6460
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "c24a15f2-fc30-473e-8db3-957add271b2c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4204
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "cf3d25fe-c40d-4863-994f-62e8f4b79f36" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4760
    • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-icc2hi-relay.screenconnect.com&p=443&s=e05c29fc-4a9f-4812-8e77-97c1d95d251a&k=BgIAAACkAABSU0ExAAgAAAEAAQAJDHZEg9jJtPblIpaQISytmZmxxmoVuKc1RtQqN9vu8pNmmG5FPpQr9egqkNxSBdh2fjgoPgUTIf0eKv2BA7BrIm3ZCzOMAHNPAkUABfsVBJoEwcH2Zyi9NEAlWR3w7EZ9lPukCbtRZAG92dkn6UBMRiAJFutTMffL7iRM9gnjAPvTr8C74JtNZ8ylNtyRVbb9rQYGvIO4hxwO5hIAPJrnJ2IKZM5QFsCCkfrqNjID6KLercUmB0w6xfERMEHiy5Nuhjb8tv3CbKxjafzp1IeCrPplo5HkJSvIHfqVcyfAvGKzp2BIQS9HkNncoguoRwfSc8bHJtrmWkCswtLAdIuz&c=Newpark0Drilling0Fluids&c=India&c=&c=&c=&c=&c=&c="
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:6668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 6668 -s 1336
        2⤵
        • Program crash
        PID:4268
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 6668 -ip 6668
      1⤵
        PID:6452

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e596d67.rbs

            • Path C:\Config.Msi\e596d67.rbs
            • Size 214KB
            • SHA256 c5ef7bdf174e0e169aa362dffd2369042c092accf81a102c44be3c02ab941ebc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            app.config

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\app.config
            • Size 370B
            • SHA256 78d10a23cfb3fa11aee073c7f9ee5dad6af4fa792fb3ade9ea7e988fa2afbdb4
            • MD5 SHA1 SHA512 TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\system.config
            • Size 958B
            • SHA256 9429bf581e29a7110ca710e01e36382ccede5020ffa96b2d52777207ed373ade
            • MD5 SHA1 SHA512 TLSH

            8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
            • Size 727B
            • SHA256 d45f36633bfef41700bead75be8ffac3e008aa3755bea053976d421515f1acbe
            • MD5 SHA1 SHA512 TLSH

            C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
            • Size 727B
            • SHA256 9896be4f1e4a2de16d0e12b194b2faf9dc4b2185ba74d32b44a7a876e70a78be
            • MD5 SHA1 SHA512 TLSH

            8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
            • Size 404B
            • SHA256 9c00eeb365daee2261aceb094ce0a0e322c3978e4d7dbad917ada5a318565959
            • MD5 SHA1 SHA512 TLSH

            C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
            • Size 412B
            • SHA256 2e65e68573ee4c5b87375e04a58195123ed696b522c9b1b6e5da2c9ccb6912e8
            • MD5 SHA1 SHA512 TLSH

            MSI2AEE.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp
            • Size 1.1MB
            • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp-\ScreenConnect.Core.dll
            • Size 567KB
            • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2AEE.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2E1C.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2E1C.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientSetup.msi

            • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\bbe1694f4393c6ac\ScreenConnect.ClientSetup.msi
            • Size 11.8MB
            • SHA256 3377af7e5905a8d50549edb4918a29231cac9d86ed592533974b112ce4b5c635
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI714F.tmp

            • Path C:\Windows\Installer\MSI714F.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            lil2ob4w.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\lil2ob4w.newcfg
            • Size 882B
            • SHA256 f60b1eaea33406b6a07f3afb2ed5cd3b94f053702999105675112745265698a5
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\user.config
            • Size 520B
            • SHA256 98cb1c3cf9d4fb2f266714913b93abb9da7dff05b068cf6565e10a07935817bf
            • MD5 SHA1 SHA512 TLSH

            vg1v0nm1.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\vg1v0nm1.newcfg
            • Size 683B
            • SHA256 947c6efca9d31e5d1f88d21180e730851d2cfe8c99148a2db4a21a9b5d2c65b0
            • MD5 SHA1 SHA512 TLSH

            memory/4204-230-0x000000001BAA0000-0x000000001BC50000-memory.dmp

            memory/4204-231-0x0000000002990000-0x00000000029AA000-memory.dmp

            memory/4204-229-0x000000001B850000-0x000000001B8E4000-memory.dmp

            memory/4204-232-0x000000001BDE0000-0x000000001BF68000-memory.dmp

            memory/4204-233-0x00000000029B0000-0x00000000029F1000-memory.dmp

            memory/4204-227-0x0000000002A00000-0x0000000002A6C000-memory.dmp

            memory/4204-226-0x00000000007A0000-0x000000000084C000-memory.dmp

            memory/5200-81-0x0000000003770000-0x0000000003798000-memory.dmp

            memory/5792-5-0x0000000074A30000-0x00000000751EC000-memory.dmp

            memory/5792-8-0x0000000074A30000-0x00000000751EC000-memory.dmp

            memory/5792-13-0x0000000074A30000-0x00000000751EC000-memory.dmp

            memory/5792-4-0x0000000005EE0000-0x0000000005F08000-memory.dmp

            memory/5792-3-0x0000000005E50000-0x0000000005EE4000-memory.dmp

            memory/5792-2-0x0000000003850000-0x000000000385C000-memory.dmp

            memory/5792-0-0x0000000074A42000-0x0000000074A43000-memory.dmp

            memory/5792-11-0x0000000074A30000-0x00000000751EC000-memory.dmp

            memory/5792-1-0x0000000001E50000-0x0000000001E58000-memory.dmp

            memory/5792-9-0x0000000074A30000-0x00000000751EC000-memory.dmp

            memory/5792-6-0x0000000006050000-0x0000000006200000-memory.dmp

            memory/5792-7-0x00000000067C0000-0x0000000006D7A000-memory.dmp

            memory/6236-51-0x0000000005500000-0x00000000056B0000-memory.dmp

            memory/6236-47-0x00000000052B0000-0x0000000005344000-memory.dmp

            memory/6236-43-0x0000000005180000-0x000000000518C000-memory.dmp

            memory/6236-39-0x0000000005150000-0x000000000517E000-memory.dmp

            memory/6460-210-0x0000000003ED0000-0x0000000003F3C000-memory.dmp

            memory/6460-211-0x0000000003FE0000-0x0000000004072000-memory.dmp

            memory/6460-212-0x0000000003C50000-0x0000000003C91000-memory.dmp

            memory/6460-213-0x00000000041D0000-0x00000000042A6000-memory.dmp

            memory/6460-193-0x0000000003C00000-0x0000000003C50000-memory.dmp

            memory/6460-174-0x00000000039A0000-0x0000000003A34000-memory.dmp

            memory/6460-182-0x0000000003CB0000-0x0000000003E60000-memory.dmp

            memory/6668-164-0x0000000002BF0000-0x0000000002C0A000-memory.dmp