Analysis

  • max time kernel
    150s
  • max time network
    155s
  • 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, 00:21

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-annd3avway
  • SHA256 b129c75d82c24d30d244ff73de315e06254350e4633cf2193c74030c3b16a217
  • 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 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:4176
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\fb0552e2ee914c31\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:5144
  • 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:5520
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding D3D03880DBD3CAF2794C43354537CA43 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4304
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741687 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1596
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI71EB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240742984 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3320
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7807.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240744546 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5808
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4308
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7ECD89505D093D44451AE7A19D478A5F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5568
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7F0A46A90E62EC51DDD5E1B330DBF04F E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4660
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6052
    • C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-vnv6w1-relay.screenconnect.com&p=443&s=a85e07fc-eef1-49bb-9a91-f25d2ac796f0&k=BgIAAACkAABSU0ExAAgAAAEAAQDZrYaNoFHZEsjZ3u8vM3MqH4LsYyik5MuUModVKUaQs6qjWkD67r6HbSFjYST63biWeuo0o1WVUpI3gloZC7VhR4Qnib0yIawLqa4Kw0n3T0tOEg4r1tkp%2bDg0ZHbpGXXiR8HHFpJ%2fq85em0ZehReCCHXD01IvysADkCsBfb1LSK%2fcpMu%2bB09DXJx1AOCyBjREBKMMzRzwUs8JNfHTNgUL3Vy%2bfvZXBho3sABXoiAfHRuh9rwETnxBGDaV6iHcbI%2f4n9ini5KOdL5RFHM1B2tpwSCA2fwS83dJiWcoq47TSixfP6RruwFSaUSCttLUXseqiWk%2bxIg%2fXii78M5jhMD6&c=&c=&c=B2B&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:2804
      • C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe" "RunRole" "f58f6fac-856b-4723-b9e8-7c137bee6d73" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5180
      • C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe" "RunRole" "f609777b-f982-4854-a3b6-ee56894fd540" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5976

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59d45e.rbs

          • Path C:\Config.Msi\e59d45e.rbs
          • Size 214KB
          • SHA256 a9af282e869d30c3c2ba77378d072eb8611781dba30199372a544e8781003f56
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fb0552e2ee914c31)\system.config
          • Size 960B
          • SHA256 529e8e8d73c1f0a4c9d9a1d105038abd29e0f353d75e8dbe87d823614f946d99
          • MD5 SHA1 SHA512 TLSH

          MSI6C8B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI71EB.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI71EB.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\fb0552e2ee914c31\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 a6d47aa562d50270c8cf47c8747fc6d22538f937726f94f98370a1975fd0a79d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIDB44.tmp

          • Path C:\Windows\Installer\MSIDB44.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          5kgvwoyy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fb0552e2ee914c31)\5kgvwoyy.newcfg
          • Size 883B
          • SHA256 7063ca3629e5663275a211c5f9877b8519937117309d4e9612a67e8c7c004464
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fb0552e2ee914c31)\user.config
          • Size 683B
          • SHA256 4467151257f2d0cccde33af7df48ab8c43d61fc8b51361317443a0332ed4e3fb
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fb0552e2ee914c31)\user.config
          • Size 520B
          • SHA256 9e1154b05787f7149e62d628f360f81933e8ce3432cb4383716c1059dd713db9
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 d7a0533afe82e72f637b92e905e26b79a21a410adad2c0083a4533afaafbf08b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {77c11167-cede-405e-bf65-9769cd401bb4}_OnDiskSnapshotProp

          • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{77c11167-cede-405e-bf65-9769cd401bb4}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 7d209fce796098ff4c566d870237eb2962e7139dd61a44c400cb0335353ac697
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1596-35-0x0000000003BD0000-0x0000000003BFE000-memory.dmp

          memory/1596-47-0x0000000005FE0000-0x0000000006190000-memory.dmp

          memory/1596-39-0x0000000003C10000-0x0000000003C1C000-memory.dmp

          memory/1596-43-0x0000000005D90000-0x0000000005E26000-memory.dmp

          memory/2804-196-0x0000000004870000-0x0000000004902000-memory.dmp

          memory/2804-200-0x0000000004A60000-0x0000000004B36000-memory.dmp

          memory/2804-165-0x00000000044F0000-0x00000000046A0000-memory.dmp

          memory/2804-161-0x0000000004290000-0x0000000004326000-memory.dmp

          memory/2804-178-0x00000000046A0000-0x00000000046F0000-memory.dmp

          memory/2804-155-0x00000000041D0000-0x00000000041EA000-memory.dmp

          memory/2804-195-0x0000000004760000-0x00000000047CC000-memory.dmp

          memory/2804-198-0x00000000046F0000-0x0000000004731000-memory.dmp

          memory/3320-77-0x0000000005D60000-0x0000000005D88000-memory.dmp

          memory/4176-10-0x0000000074A00000-0x00000000751BC000-memory.dmp

          memory/4176-11-0x0000000074A00000-0x00000000751BC000-memory.dmp

          memory/4176-3-0x0000000005B10000-0x0000000005BA6000-memory.dmp

          memory/4176-13-0x0000000074A00000-0x00000000751BC000-memory.dmp

          memory/4176-0-0x0000000074A12000-0x0000000074A13000-memory.dmp

          memory/4176-1-0x0000000003420000-0x0000000003428000-memory.dmp

          memory/4176-6-0x0000000005BE0000-0x0000000005D90000-memory.dmp

          memory/4176-7-0x0000000074A00000-0x00000000751BC000-memory.dmp

          memory/4176-5-0x0000000003580000-0x00000000035A8000-memory.dmp

          memory/4176-4-0x0000000074A00000-0x00000000751BC000-memory.dmp

          memory/4176-8-0x0000000006350000-0x000000000690A000-memory.dmp

          memory/4176-2-0x0000000003550000-0x000000000355C000-memory.dmp

          memory/5180-218-0x0000000000DE0000-0x0000000000E90000-memory.dmp

          memory/5180-219-0x0000000003060000-0x00000000030CC000-memory.dmp

          memory/5180-220-0x000000001BF10000-0x000000001BFA6000-memory.dmp

          memory/5180-223-0x0000000002FD0000-0x0000000002FEA000-memory.dmp

          memory/5180-224-0x000000001C4A0000-0x000000001C628000-memory.dmp

          memory/5180-222-0x000000001C160000-0x000000001C310000-memory.dmp

          memory/5520-150-0x000001CC1DC60000-0x000001CC1E604000-memory.dmp

          memory/5976-228-0x0000000002ED0000-0x0000000002F11000-memory.dmp