Analysis

  • max time kernel
    150s
  • 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
    10/09/2026, 12:33

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-prlf7sck7y
  • SHA256 506c7b8e469e3cfcbe81efa97bc28c1819f93823fc17c0904c7caa57b4290c31
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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:3372
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\955aba96a2fcd4fc\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:4732
  • 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:3752
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 039A690C94F029684E9303A227677E94 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776093 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4784
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF5D1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776703 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5084
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFB6F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240778156 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3924
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5008
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C716AD4C184DF03ACEACD4230E02DF2D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4140
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 03981181E36DD502A84A01825C041864 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:960
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2948
    • C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-w0m295-relay.screenconnect.com&p=443&s=a85a7988-519f-4d87-b080-160ed9400c37&k=BgIAAACkAABSU0ExAAgAAAEAAQD101mB1BCP40LXoVhBcNShDhpU8PmQW%2ffofLyvSt8UCSPEPF8G6RdJWU8fnyZjk%2b%2fs4YY6xnSLeTF8mgi%2fWLSIA%2bRXi36Q55CPqBqDclMiJAOP15IDGvmOiDUtsS5Snp4AjLWqNa3FzUq8QhcZ7tSZw3itFELSo25X8Omo25gP%2fEeTtJyHTdW25b%2fZSN%2bpRF4kv02oa3WSBRG93PsfQh2DI7FcWS%2bMhUom5YZBrxSiyrekpM32ZbsbQIfWClMZlMliOPeo%2bgpVFiiuqXlrqEHXIFTWgpZbZKT%2bNWlKnnxFNl%2fQ6Wc3MIUnWCdKVqURQkqXYef%2bJ5wtJ%2b9l1aSenGyr&c=11121212&c=01&c=01&c=01&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:2064
      • C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe" "RunRole" "b2fe9504-716c-4f78-9b7a-c730cb853ce9" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1112
      • C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe" "RunRole" "b1c6f88b-9f59-42ee-8114-b39a6aac9ac2" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5336

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a5fe5.rbs

          • Path C:\Config.Msi\e5a5fe5.rbs
          • Size 214KB
          • SHA256 7d75f02592193fb87faf01c37d6bd151e13492e2e07307330fd5dbeb86b0c538
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (955aba96a2fcd4fc)\system.config
          • Size 972B
          • SHA256 19c73aca5c31acebefa0bd0e547b34a23890594eec735eeee2ca9a9e6bd4f647
          • MD5 SHA1 SHA512 TLSH

          MSIF311.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF311.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5D1.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF5D1.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\955aba96a2fcd4fc\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 5e896b59a7e6b62e67d60adfccc6a1fd280b29953905c74e44dff0c640beab36
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6C0A.tmp

          • Path C:\Windows\Installer\MSI6C0A.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ho5xoixl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (955aba96a2fcd4fc)\ho5xoixl.newcfg
          • Size 884B
          • SHA256 6637d4e617c453a0ed1edb76c2ef10efe4a9bf48008b6f56e9ebe9346c75fa6a
          • MD5 SHA1 SHA512 TLSH

          qqsfri0u.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (955aba96a2fcd4fc)\qqsfri0u.newcfg
          • Size 683B
          • SHA256 497b1d75aa63e672f099c6a83266e90e9c48a2fc79da158fa797147d5c730345
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (955aba96a2fcd4fc)\user.config
          • Size 520B
          • SHA256 eaa473a764b398402b014039cafacdb62c28f0d09fc0612c752af607b44313ea
          • MD5 SHA1 SHA512 TLSH

          memory/1112-217-0x0000000000F40000-0x0000000000FF0000-memory.dmp

          memory/1112-219-0x000000001C010000-0x000000001C0A6000-memory.dmp

          memory/1112-224-0x0000000003380000-0x00000000033C1000-memory.dmp

          memory/1112-220-0x000000001C260000-0x000000001C410000-memory.dmp

          memory/1112-218-0x000000001BBD0000-0x000000001BC3C000-memory.dmp

          memory/1112-223-0x000000001C5A0000-0x000000001C728000-memory.dmp

          memory/1112-222-0x0000000003220000-0x000000000323A000-memory.dmp

          memory/2064-162-0x0000000003E10000-0x0000000003FC0000-memory.dmp

          memory/2064-199-0x0000000004250000-0x0000000004326000-memory.dmp

          memory/2064-166-0x0000000003CB0000-0x0000000003D00000-memory.dmp

          memory/2064-195-0x0000000004060000-0x00000000040F2000-memory.dmp

          memory/2064-158-0x0000000003B20000-0x0000000003BB6000-memory.dmp

          memory/2064-152-0x0000000001470000-0x000000000148A000-memory.dmp

          memory/2064-197-0x0000000003C70000-0x0000000003CB1000-memory.dmp

          memory/2064-194-0x0000000003D70000-0x0000000003DDC000-memory.dmp

          memory/3372-9-0x0000000006C30000-0x00000000071EA000-memory.dmp

          memory/3372-11-0x0000000074D70000-0x000000007552C000-memory.dmp

          memory/3372-8-0x0000000074D70000-0x000000007552C000-memory.dmp

          memory/3372-7-0x00000000064C0000-0x0000000006670000-memory.dmp

          memory/3372-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

          memory/3372-4-0x0000000006300000-0x0000000006396000-memory.dmp

          memory/3372-3-0x0000000074D70000-0x000000007552C000-memory.dmp

          memory/3372-2-0x0000000003BE0000-0x0000000003BEC000-memory.dmp

          memory/3372-5-0x0000000003E70000-0x0000000003E98000-memory.dmp

          memory/3372-6-0x0000000074D70000-0x000000007552C000-memory.dmp

          memory/3372-12-0x0000000074D70000-0x000000007552C000-memory.dmp

          memory/3372-1-0x0000000003BC0000-0x0000000003BC8000-memory.dmp

          memory/4784-33-0x0000000006000000-0x000000000602E000-memory.dmp

          memory/4784-45-0x0000000006320000-0x00000000064D0000-memory.dmp

          memory/4784-41-0x00000000060D0000-0x0000000006166000-memory.dmp

          memory/4784-37-0x0000000005FF0000-0x0000000005FFC000-memory.dmp

          memory/5084-75-0x0000000003190000-0x00000000031B8000-memory.dmp

          memory/5336-226-0x00000000027A0000-0x00000000027E1000-memory.dmp