Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/11/2026, 18:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample261104-wveldsyw8l
  • SHA256 5301c414fb1883cc9e0ee0f69a14fe6fd6b7fe1759c56ef4e563055b95af12e3
  • 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
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 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 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:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4988
  • 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:5784
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding EC3118747D41CF4D3472A69DA96F04EE C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5488
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240747296 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3100
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8A17.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240749187 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:1912
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI93EB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751656 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4180
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2480
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C89D09FE0BBA4CC41CB1BC895391CB8F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3640
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 24B274DA521D7EC51EF9510BA7BB0F8D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1488
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4528
    • C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-j7cawx-relay.screenconnect.com&p=443&s=3b6c5342-5363-4fb2-866e-aff6ff3ce223&k=BgIAAACkAABSU0ExAAgAAAEAAQB9hu2t0OOmiZ6GOdjiP%2fLoxDfWYHbUSN7ucYCLsxehMS9IooKXulIRk1UkHM90Idu11zJhzzHFoHpkZcQ4HgENgLyEwlwLWWV5Y6FT05khHLNcNmxPFh4aLfj14y3W1xO7sqH8YPdw2Y2qMlG5oFsLDXaKVuVC%2fuogtXEwSB8PMScSJGa1iw7Bn0%2f5x6icaRdYFzfXl9tSyNPa%2fheBYlgjeNymshNGGIvDAE9bmgT98ZPhQifYKHdUAm3Pb%2bI2D1qr9LIqtBPDwpSZo5ekbvPMIfbUTA9RuZAZR1vy0T9zpgJpAe%2fm45gNwvJ7vpalEtxytK2a4yhzdgYZV%2f9781fQ"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe" "RunRole" "d54e6b30-ec88-4ff0-ab08-882b3939e8f0" "User"
        2⤵
        • Executes dropped EXE
        PID:2988
      • C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe" "RunRole" "977d0c24-76ac-4f66-a90a-f572fcb9c969" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2220

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59ee9d.rbs

          • Path C:\Config.Msi\e59ee9d.rbs
          • Size 214KB
          • SHA256 501753d1533048da600e1f3d17882e0ae8d654414c3128abbe64555012f437bf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe
          • Size 689KB
          • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a4eaf2e8b8af3705)\system.config
          • Size 958B
          • SHA256 d14a21003c815e4f1fd6dc105ff18338e9b2d3fa6b6bc3ff5353746cd3ebeb12
          • MD5 SHA1 SHA512 TLSH

          MSI81D8.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI81D8.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • 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 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF544.tmp

          • Path C:\Windows\Installer\MSIF544.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59ee9e.msi

          • Path C:\Windows\Installer\e59ee9e.msi
          • Size 9.8MB
          • SHA256 5301c414fb1883cc9e0ee0f69a14fe6fd6b7fe1759c56ef4e563055b95af12e3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jedopwrf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a4eaf2e8b8af3705)\jedopwrf.newcfg
          • Size 883B
          • SHA256 7579b23b6bfbaf149737e1e79684cd5b29b6b1a1261f332d465d32c3f0217242
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a4eaf2e8b8af3705)\user.config
          • Size 520B
          • SHA256 8adf966a0731aa045bc51601c9f79e14fcbfb3342f34f9ff7dce3daa3f8fa18a
          • MD5 SHA1 SHA512 TLSH

          vguigmc0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a4eaf2e8b8af3705)\vguigmc0.newcfg
          • Size 683B
          • SHA256 292adc866991a6f407c760b69162e3e5176b6f3141695d2b517de823bf43d0d7
          • MD5 SHA1 SHA512 TLSH

          {332176b2-65ea-48e0-9e32-e1d8c3dc5ec7}_OnDiskSnapshotProp

          • Path \??\Volume{e3f46304-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{332176b2-65ea-48e0-9e32-e1d8c3dc5ec7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a2d085529fa776777a38c33dc925b3adb006f75ced2dbb8ebfa4cecb0679425f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1912-64-0x0000000005C70000-0x0000000005C98000-memory.dmp

          memory/2220-214-0x000000001C710000-0x000000001C898000-memory.dmp

          memory/2220-213-0x00000000019D0000-0x00000000019EA000-memory.dmp

          memory/2220-212-0x000000001C3D0000-0x000000001C580000-memory.dmp

          memory/2220-211-0x000000001BF20000-0x000000001BFB6000-memory.dmp

          memory/2220-209-0x0000000000FA0000-0x0000000001050000-memory.dmp

          memory/2220-210-0x0000000003210000-0x000000000327C000-memory.dmp

          memory/3100-33-0x00000000058A0000-0x0000000005A50000-memory.dmp

          memory/3100-29-0x0000000003590000-0x0000000003626000-memory.dmp

          memory/3100-25-0x0000000003420000-0x000000000342C000-memory.dmp

          memory/3100-21-0x00000000033E0000-0x000000000340E000-memory.dmp

          memory/3100-34-0x0000000006010000-0x00000000065CA000-memory.dmp

          memory/4928-151-0x0000000003E00000-0x0000000003FB0000-memory.dmp

          memory/4928-188-0x0000000004240000-0x0000000004316000-memory.dmp

          memory/4928-186-0x0000000003C50000-0x0000000003C91000-memory.dmp

          memory/4928-184-0x0000000004050000-0x00000000040E2000-memory.dmp

          memory/4928-183-0x0000000003D60000-0x0000000003DCC000-memory.dmp

          memory/4928-141-0x0000000003A50000-0x0000000003A6A000-memory.dmp

          memory/4928-164-0x0000000003CA0000-0x0000000003CF0000-memory.dmp

          memory/4928-147-0x0000000003BB0000-0x0000000003C46000-memory.dmp