Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 14:12

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260820-rh7n7adn4v
  • SHA256 f026e990666ff3db0047fbe4dae03e5dba3cd82fe11b62fe6729821d5ab77b40
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 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:2508
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\c7980fb440577146\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:3324
  • 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:2336
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8DB6F4CC788E8F8C7F0C0D42FACCD710 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723812 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2668
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2A63.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725000 12 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI24D1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240788906 20 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4648
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6EFABC0298B4DFA0378213DAD71FEE82
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4620
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AD892D54F4C4ACDC9B7BFB094B2316BB E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1448
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4780
    • C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-f1m2bb-relay.screenconnect.com&p=443&s=943d7072-a8b6-4b4e-9aa8-7b40f099fd7e&k=BgIAAACkAABSU0ExAAgAAAEAAQCRHh026qLGmsJ9jSzpS5qbSqDlf0vpJ%2fQfx2%2bGqT8Y977MgY1BXjH6aj8Te3OjGwWOBUvyk1KS%2fg1n8Z3WyyRdcSgqptJZbk38s5L1uqn5jZVMN7EUWfp7wE2MqupH%2bxWLtwjVq%2bbgfQFpV1zhqFD6LdB%2bEv2xwEgeDfCkx5XjWa1U2KwFoP%2fqMhdt8L5X99txX%2b2LiTkZSnw6VEtPtKJuIFhreOW%2fYGxoGzOASib%2frQ80fZoRmMcqWoXlpTRyaUis0YEfhHeDyDBEl0HuNK2PJ3yjDcQgyDTl5Bf9FMAKHmOLkICKIQMyNHrKk6eJ3nIlEVlFlxenpBmtJuqxuLLF&t=Invite&c=Invite&c=INVITE&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:5204
      • C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsClient.exe" "RunRole" "788fcaf4-c5da-4930-b900-89ccb8ae4580" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4596

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a734e.rbs

          • Path C:\Config.Msi\e5a734e.rbs
          • Size 214KB
          • SHA256 44a0d915c9be347a1a262361beec0c091e7fd7d928159f1566a50631062cca71
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c7980fb440577146)\system.config
          • Size 964B
          • SHA256 ec8e4d5549afa96e764fdcb7b9177762686c20d20692e2347f545fd686e22565
          • MD5 SHA1 SHA512 TLSH

          MSI26C8.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI26C8.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A63.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A63.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\c7980fb440577146\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 61a630cc1611b81385d24d61c18ec1162b6c98fb06c375eec0eadeebf2569caa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI787E.tmp

          • Path C:\Windows\Installer\MSI787E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          41shazug.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c7980fb440577146)\41shazug.newcfg
          • Size 683B
          • SHA256 dc4df511543c6fd9411e25b392c0636f7d79860effee81f0526a0e0943ec3272
          • MD5 SHA1 SHA512 TLSH

          p5lf0uwu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c7980fb440577146)\p5lf0uwu.newcfg
          • Size 883B
          • SHA256 606ee3f20d72a9cd62ef9bf22672a50d3e16038e4d7f0de9c1bc40bec3db0fd3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c7980fb440577146)\user.config
          • Size 520B
          • SHA256 84a83d460853c37302df04094a7dfabdf50885a590fdc689d9506bd7a359cd29
          • MD5 SHA1 SHA512 TLSH

          {0257897a-919b-478a-9f94-9f9ea28c6b03}_OnDiskSnapshotProp

          • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{0257897a-919b-478a-9f94-9f9ea28c6b03}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 4a989eb6133e6ad4cbcba5b18ddaf21631c9daef5eb797fc3761cee582bc44fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2336-225-0x000001B86B810000-0x000001B86C1B4000-memory.dmp

          memory/2508-8-0x0000000006460000-0x0000000006A1A000-memory.dmp

          memory/2508-4-0x0000000074D60000-0x000000007551C000-memory.dmp

          memory/2508-13-0x0000000074D60000-0x000000007551C000-memory.dmp

          memory/2508-11-0x0000000074D60000-0x000000007551C000-memory.dmp

          memory/2508-1-0x0000000003620000-0x0000000003628000-memory.dmp

          memory/2508-2-0x0000000005B90000-0x0000000005B9C000-memory.dmp

          memory/2508-9-0x0000000074D60000-0x000000007551C000-memory.dmp

          memory/2508-3-0x0000000005C00000-0x0000000005C94000-memory.dmp

          memory/2508-5-0x0000000005CB0000-0x0000000005CD8000-memory.dmp

          memory/2508-0-0x0000000074D72000-0x0000000074D73000-memory.dmp

          memory/2508-6-0x0000000005CE0000-0x0000000005E90000-memory.dmp

          memory/2508-7-0x0000000074D60000-0x000000007551C000-memory.dmp

          memory/2668-35-0x0000000005D40000-0x0000000005D6E000-memory.dmp

          memory/2668-39-0x0000000005D80000-0x0000000005D8C000-memory.dmp

          memory/2668-43-0x0000000005E80000-0x0000000005F14000-memory.dmp

          memory/2668-47-0x00000000060D0000-0x0000000006280000-memory.dmp

          memory/2900-77-0x0000000003D40000-0x0000000003D68000-memory.dmp

          memory/4596-223-0x000000001B2D0000-0x000000001B364000-memory.dmp

          memory/4596-226-0x0000000002570000-0x000000000258A000-memory.dmp

          memory/4596-227-0x000000001B860000-0x000000001B9E8000-memory.dmp

          memory/4596-224-0x000000001B520000-0x000000001B6D0000-memory.dmp

          memory/4596-222-0x000000001AF60000-0x000000001AFCC000-memory.dmp

          memory/4596-221-0x0000000000280000-0x000000000032E000-memory.dmp

          memory/5204-202-0x0000000004AE0000-0x0000000004BB6000-memory.dmp

          memory/5204-165-0x00000000045C0000-0x0000000004770000-memory.dmp

          memory/5204-198-0x00000000048F0000-0x0000000004982000-memory.dmp

          memory/5204-161-0x0000000004370000-0x0000000004404000-memory.dmp

          memory/5204-155-0x0000000001DA0000-0x0000000001DBA000-memory.dmp

          memory/5204-171-0x0000000004510000-0x0000000004560000-memory.dmp

          memory/5204-197-0x00000000047E0000-0x000000000484C000-memory.dmp

          memory/5204-200-0x0000000004560000-0x00000000045A1000-memory.dmp