Analysis

  • max time kernel
    148s
  • max time network
    130s
  • 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, 18:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261104-wwrmcaev9r
  • SHA256 29fce4b826ecb97c8adf0b4158e4922d30159ab27a34e9df717a0478bbd8652a
  • 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 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).

  • 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 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:5032
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\a7779e746337033a\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:4116
  • 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:5640
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F6127CCF2F5E36D8D5C3FEEA42884862 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5472
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2080
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9707.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752421 11 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:2724
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9DBF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240754187 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3216
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3744
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4317CCB11ADB0D75040EF857B212D7A4
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2852
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5C6C78D64F2854AB523B8D2B6E3F8AF7 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3976
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2320
    • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-lkujyy-relay.screenconnect.com&p=443&s=310756e4-39f1-4f28-87f0-adb062c32146&k=BgIAAACkAABSU0ExAAgAAAEAAQDR8LiHF%2bA3EAYXr9EVlbY7PPqg2lIXrTKo51QhRV6wrgj%2f2g9YsjIBeYE1ny6hQPN2RZNZeNRU5u6s2Sg89VNem%2b1YBotZaDVULHgf0t2Ghhfl1KJon%2fsjmnxYTGKbq%2fNBkfQdxRbhtbJ8IathI4cR7cqKk3kNrO38PApyLZx%2bZqoGrB9yWfmY36igNTQ5HTtl1939RFACHyaGjWHaRZE%2fvkaBIRZKdxo2yNk1u%2fXhwITajDXWl56zT2rifZuw8GblBeD025jCozKMMs8%2bVpvBH3rv%2bzbGrheGjv9ZAuFCJkQxx48x42TCcuvsUElB13G4YJ0NMYnbMF0UOJP2k%2bm8&c=fron&c=&c=&c=&c=&c=&c=&c="
      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:4372
      • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe" "RunRole" "aec786e2-c6e6-478f-9f2a-3d772adf44af" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5196
      • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe" "RunRole" "03f64507-c0a9-4595-acce-4de5dd0cea83" "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:3256

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59eab5.rbs

          • Path C:\Config.Msi\e59eab5.rbs
          • Size 214KB
          • SHA256 7d36a387f9d2783056ffa2260ab6d2e7ee30c461ef5b317c04c581d9f11985e6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe
          • Size 689KB
          • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\system.config
          • Size 966B
          • SHA256 dd0a8044a86258198e066eb9857ecc4432a544ac95edee9385e6c61d3d906372
          • MD5 SHA1 SHA512 TLSH

          MSI8FB3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8FB3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9707.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9707.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\a7779e746337033a\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 6e3b429edfaba1ee5b121a0f216ae54904cec30d64a9167afca94ea7084899f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF081.tmp

          • Path C:\Windows\Installer\MSIF081.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hdm1p2l5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\hdm1p2l5.newcfg
          • Size 881B
          • SHA256 be5c047429a389f5095d9e05346ec896b3c661683252e57530710988381a9768
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\user.config
          • Size 520B
          • SHA256 2747fc490860f64c55a0c05293e6a9c1a659356a66e6b7900a2bf558c94dc545
          • MD5 SHA1 SHA512 TLSH

          usldzi22.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\usldzi22.newcfg
          • Size 683B
          • SHA256 41944eb0e2682f8ad01a534e2dac72640ee27b52c542edf450e46bff4195d392
          • MD5 SHA1 SHA512 TLSH

          memory/2080-45-0x00000000062F0000-0x00000000064A0000-memory.dmp

          memory/2080-41-0x0000000005FF0000-0x0000000006086000-memory.dmp

          memory/2080-33-0x0000000003E90000-0x0000000003EBE000-memory.dmp

          memory/2080-37-0x0000000003ED0000-0x0000000003EDC000-memory.dmp

          memory/2724-75-0x00000000052B0000-0x00000000052D8000-memory.dmp

          memory/4372-158-0x0000000003A90000-0x0000000003B26000-memory.dmp

          memory/4372-199-0x0000000003C00000-0x0000000003C41000-memory.dmp

          memory/4372-201-0x0000000004120000-0x00000000041F6000-memory.dmp

          memory/4372-162-0x0000000003CE0000-0x0000000003E90000-memory.dmp

          memory/4372-168-0x0000000003BB0000-0x0000000003C00000-memory.dmp

          memory/4372-152-0x00000000039A0000-0x00000000039BA000-memory.dmp

          memory/4372-197-0x0000000003F30000-0x0000000003FC2000-memory.dmp

          memory/4372-196-0x0000000003C70000-0x0000000003CDC000-memory.dmp

          memory/5032-9-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/5032-5-0x0000000005800000-0x0000000005828000-memory.dmp

          memory/5032-7-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/5032-8-0x0000000006020000-0x00000000065DA000-memory.dmp

          memory/5032-11-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/5032-6-0x00000000058B0000-0x0000000005A60000-memory.dmp

          memory/5032-13-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/5032-3-0x0000000005770000-0x0000000005806000-memory.dmp

          memory/5032-4-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/5032-2-0x00000000030C0000-0x00000000030CC000-memory.dmp

          memory/5032-0-0x0000000074C82000-0x0000000074C83000-memory.dmp

          memory/5032-1-0x0000000000C60000-0x0000000000C68000-memory.dmp

          memory/5196-222-0x000000001B920000-0x000000001B98C000-memory.dmp

          memory/5196-221-0x0000000000C70000-0x0000000000D20000-memory.dmp

          memory/5196-223-0x000000001BD30000-0x000000001BDC6000-memory.dmp

          memory/5196-224-0x000000001BF80000-0x000000001C130000-memory.dmp

          memory/5196-225-0x0000000001590000-0x00000000015AA000-memory.dmp

          memory/5196-226-0x000000001C2C0000-0x000000001C448000-memory.dmp