Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 00:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260707-ah3a2abs2k
  • SHA256 7c4d8c7e7dccc93cf184e18fe406fe2c0ee93483b36b8ef3b897555205ebe330
  • 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 12 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 processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:4964
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\60d637cc97adf240\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:4272
  • 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:4860
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F55EC3EC2880C7E61BDDB99279526424 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5000
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240747687 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3008
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8A17.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240749140 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5844
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI911D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751140 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4328
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1C139F12EACF4D7514BD6A10716217DB
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2948
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3202806CD47AFA78454A76244F39E1D1 E Global\MSI0000
      2⤵
      • Drops file in Windows directory
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1152
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:1276
    • C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cxx7ud-relay.screenconnect.com&p=443&s=03113e5d-7d21-4d0b-b61d-96dc685ac28d&k=BgIAAACkAABSU0ExAAgAAAEAAQCJ9jFUp%2b6clfiy2j0TJ2%2fd0cZdK9yBXc57cC9spqxR5XmYUwi0aKYoUdUodxSKK1N4QJ09H9%2bGIjiGWks%2bdVkSRxsgQw9T0q%2bISgGNhaHVyL%2fja0fTuLucRfwG40GCdwoR9uWpJ%2f2N4X%2fEmS36zMauz5PHQ05RUIVeiXdBgOYLIxqQLjF7vt7NzRdRtzQvrZ9Yz0nEUC%2bdTh37UMZ%2bAwSMoviWmRUEieLKs6jc2%2bdI8qQrRI1N1N3tJ5GLCAyJUKXl%2bvkWayEIcKUhqTLnRKazuS%2f8IrqIf8UxfXLwWh%2fvjCwD13dOmYJlRf%2fc7727lQqGn1xevE3CIV6aRnxdYk%2fO"
      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:6032
      • C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe" "RunRole" "e91b36c5-9b42-4af2-bbac-fc0e46943a42" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3620
      • C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe" "RunRole" "d099e682-fc3c-4afc-ace9-12e162277061" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3476

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59969a.rbs

          • Path C:\Config.Msi\e59969a.rbs
          • Size 214KB
          • SHA256 2513fe0798e60447cb2e19d071bf6e892ef7d2dc6bf362ea100f3694f2593ce8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (60d637cc97adf240)\system.config
          • Size 976B
          • SHA256 3a8ec5f8bdd3325960ca36e805495c93f8b6c3559e1664672bc5f3b2fc19c339
          • MD5 SHA1 SHA512 TLSH

          MSI8320.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8320.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8A17.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8A17.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\60d637cc97adf240\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 0b089e1db7ab19d7de8ee84b57ab3dc957eef3a5e08b25bb04f4180d0ce7c561
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI99F5.tmp

          • Path C:\Windows\Installer\MSI99F5.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bmd4qvni.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (60d637cc97adf240)\bmd4qvni.newcfg
          • Size 882B
          • SHA256 9da8c52ed890865fdbb29f8e5e84acdef924b80de3e2ddd10a06a54d99bef8a8
          • MD5 SHA1 SHA512 TLSH

          fvhfmubc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (60d637cc97adf240)\fvhfmubc.newcfg
          • Size 882B
          • SHA256 67c6bc909d51179c18d796b02c3f5c9ec904e5aaf1cdab0398f619ead02deee1
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (60d637cc97adf240)\user.config
          • Size 683B
          • SHA256 9568b5df0232ece23db87660d205c95723f919a3d33f8f7d03c76c823d1fef19
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (60d637cc97adf240)\user.config
          • Size 520B
          • SHA256 efab07f021e351d2324a0260066d803b993fb0937940fb5bd08d7c4df8c0cb45
          • MD5 SHA1 SHA512 TLSH

          memory/3008-32-0x0000000003950000-0x000000000397E000-memory.dmp

          memory/3008-44-0x0000000005D00000-0x0000000005EB0000-memory.dmp

          memory/3008-36-0x0000000003990000-0x000000000399C000-memory.dmp

          memory/3008-40-0x0000000005AB0000-0x0000000005B44000-memory.dmp

          memory/3620-215-0x000000001BF80000-0x000000001C130000-memory.dmp

          memory/3620-217-0x000000001C2C0000-0x000000001C448000-memory.dmp

          memory/3620-211-0x0000000000C60000-0x0000000000D0C000-memory.dmp

          memory/3620-213-0x0000000002EE0000-0x0000000002F4C000-memory.dmp

          memory/3620-216-0x0000000002D50000-0x0000000002D6A000-memory.dmp

          memory/3620-214-0x000000001BD30000-0x000000001BDC4000-memory.dmp

          memory/4964-5-0x0000000005E00000-0x0000000005E28000-memory.dmp

          memory/4964-7-0x0000000074F40000-0x00000000756FC000-memory.dmp

          memory/4964-6-0x0000000005E80000-0x0000000006030000-memory.dmp

          memory/4964-0-0x0000000074F52000-0x0000000074F53000-memory.dmp

          memory/4964-8-0x00000000065F0000-0x0000000006BAA000-memory.dmp

          memory/4964-1-0x0000000003720000-0x0000000003728000-memory.dmp

          memory/4964-10-0x0000000074F40000-0x00000000756FC000-memory.dmp

          memory/4964-4-0x0000000074F40000-0x00000000756FC000-memory.dmp

          memory/4964-3-0x0000000005D50000-0x0000000005DE4000-memory.dmp

          memory/4964-2-0x0000000005CE0000-0x0000000005CEC000-memory.dmp

          memory/4964-12-0x0000000074F40000-0x00000000756FC000-memory.dmp

          memory/5844-74-0x0000000003B40000-0x0000000003B68000-memory.dmp

          memory/6032-171-0x0000000003CE0000-0x0000000003D30000-memory.dmp

          memory/6032-193-0x0000000004260000-0x0000000004336000-memory.dmp

          memory/6032-189-0x0000000004070000-0x0000000004102000-memory.dmp

          memory/6032-191-0x0000000003EF0000-0x0000000003F31000-memory.dmp

          memory/6032-188-0x0000000003F60000-0x0000000003FCC000-memory.dmp

          memory/6032-148-0x00000000039C0000-0x00000000039DA000-memory.dmp

          memory/6032-158-0x0000000003D40000-0x0000000003EF0000-memory.dmp

          memory/6032-154-0x0000000003AF0000-0x0000000003B84000-memory.dmp