Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 12:11

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260710-pczehscv81
  • SHA256 a7ed8e8632978451c44a0a057ca1cd6b7f9b917399de84ab35efab652a6ecd95
  • 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • 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
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 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 8 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3860
  • 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:2160
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E3EC53D4E3234998E28EFA375F47965F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4688
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722093 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3328
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2727.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723781 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6072
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2E0D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725750 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1724
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding FDE0BE305D3B5383EFC4FD0CBA37A954
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:268
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C78277BF38A2B8316184D5DC02BFCB6E E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1256
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:6032
    • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-yjwtek-relay.screenconnect.com&p=443&s=882b201a-8f09-4bcb-a165-f70a92261740&k=BgIAAACkAABSU0ExAAgAAAEAAQAhADT2mJ%2bsNroLwX6qJuNDo3cMCgBb76vaTqq1eQ8r4%2b3wHOD046tKkAVnOdVsnQavNexjunYWxfXNBg2F2KvV7M0lERlJ0MQD%2bbmZFH3pYJ9TiphXfaiDHgSNPshkJL%2f5Ets0cfDEC5bQSI1gJnB8%2fWjqrwWXFLQ%2fOswUSjjLbCuvtZcWFDZHV6A%2fTOBsd%2fli1svNYZvElZTi%2fOxPOSSJGloHLgC4vF0PtY8F2V%2blxYRSF%2bJYZamvorKlZf9hPomRMv1N8tj35j9ZUHpJO6ZamVq4Ynnxjv37jgOmqCD8%2fRb9nuJTpI4zNsqgD31%2bWvhHLCjXHLUtBrJifGzNGO7E"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:6096
      • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe" "RunRole" "4373021d-0c21-4dcc-9ebd-0a7f9a3eedcf" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1524
      • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe" "RunRole" "4fdff59b-cef2-49f7-b5ec-fbb000d9a92b" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4492

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e593177.rbs

          • Path C:\Config.Msi\e593177.rbs
          • Size 214KB
          • SHA256 6970ac90a4b3d6e6db30f33d81de8a7949c05b21ecc619f488ab9142447f11b4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\system.config
          • Size 970B
          • SHA256 f58783ab4e7fe06073bb6b52b721a6c740cea795f46a876c285a60f0db2c36ae
          • MD5 SHA1 SHA512 TLSH

          MSI1F46.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1F46.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2727.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2727.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3427.tmp

          • Path C:\Windows\Installer\MSI3427.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e593176.msi

          • Path C:\Windows\Installer\e593176.msi
          • Size 9.8MB
          • SHA256 a7ed8e8632978451c44a0a057ca1cd6b7f9b917399de84ab35efab652a6ecd95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4ktpz3ux.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\4ktpz3ux.newcfg
          • Size 683B
          • SHA256 0a765a2808a519470e5642a2cc9680d0e42c37175b995ab413d2ef2f1973ce0d
          • MD5 SHA1 SHA512 TLSH

          oguf4bnd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\oguf4bnd.newcfg
          • Size 883B
          • SHA256 f95a14d6f2b154c5c4721d4cc1f35eb40b6d44f06e45bb0099926ab171f6ce41
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\user.config
          • Size 520B
          • SHA256 33057464fb396d11fc6d016e0f75eb040bb83cecc398e391bdc8c489e9dcc68a
          • MD5 SHA1 SHA512 TLSH

          memory/1524-202-0x000000001B0F0000-0x000000001B15C000-memory.dmp

          memory/1524-207-0x000000001B9F0000-0x000000001BB78000-memory.dmp

          memory/1524-206-0x000000001B060000-0x000000001B07A000-memory.dmp

          memory/1524-201-0x0000000000470000-0x000000000051C000-memory.dmp

          memory/1524-204-0x000000001B6B0000-0x000000001B860000-memory.dmp

          memory/1524-203-0x000000001B460000-0x000000001B4F4000-memory.dmp

          memory/3328-19-0x0000000005C10000-0x0000000005C3E000-memory.dmp

          memory/3328-32-0x00000000066C0000-0x0000000006C7A000-memory.dmp

          memory/3328-31-0x0000000005F50000-0x0000000006100000-memory.dmp

          memory/3328-27-0x0000000005D00000-0x0000000005D94000-memory.dmp

          memory/3328-23-0x0000000005C50000-0x0000000005C5C000-memory.dmp

          memory/6072-62-0x0000000005550000-0x0000000005578000-memory.dmp

          memory/6096-181-0x0000000004980000-0x00000000049C1000-memory.dmp

          memory/6096-146-0x0000000004780000-0x0000000004930000-memory.dmp

          memory/6096-179-0x0000000004B00000-0x0000000004B92000-memory.dmp

          memory/6096-183-0x0000000004CF0000-0x0000000004DC6000-memory.dmp

          memory/6096-154-0x0000000004930000-0x0000000004980000-memory.dmp

          memory/6096-178-0x00000000049F0000-0x0000000004A5C000-memory.dmp

          memory/6096-142-0x0000000004530000-0x00000000045C4000-memory.dmp

          memory/6096-136-0x0000000004470000-0x000000000448A000-memory.dmp