Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 12:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261102-pgdzdavz8k
  • SHA256 b3bee285dcc0dce30ed7808b96dd40fde893e99cdbe060c816eb565ce2287cba
  • 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:1856
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\38c1e2fa0f2f0904\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:4232
  • 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:4164
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9C21ECF3E9109975FE027E26AF61BD8E C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3244
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717156 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4524
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240718593 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:3392
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI190E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720203 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3444
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1788
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4121927FCA1830D508927EF4FCBAC398
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F0DDA4F1FAAED06506F1E020495241ED E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4912
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1540
    • C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-q6um0y-relay.screenconnect.com&p=443&s=62040f01-eccb-4caf-bde2-aaf99d8fdee4&k=BgIAAACkAABSU0ExAAgAAAEAAQAVNtOGi4mgU2P1TonqoDMH1%2fBLCAtb7nGrzC9%2bwvbnYfmgSx6H1cveb9f2UIyW2SqUwZYJRfmuQlrO1HwcI19oZL44h3TJHp%2ful53rgyj%2f9kDVmLwlJp4qFPHc3wtJNvo14dQ97Ffjg2TuD%2fr3FJke4I4hSLmbXgVPtxOKHr23Pc8Nah61yXlshQnuM0Spub49WtQl80AVxIzPXvrzpfHWzlWWg11yTFi39UNQoW%2buYmIPEqFJwkQuwng2PmJH9o58ERznWMu%2f0Prg0NlQkFOwjWI9D5a3poUDZc44RfA3kPDshzhYNN3uNTgOlPJULVnXWT5kMnklH4vs9YvTQlPK"
      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:1252
      • C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe" "RunRole" "2272ba5c-886c-4930-88a6-700dc2786584" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5284
      • C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe" "RunRole" "13b6072f-7b5e-4991-ba7d-ff7f7e4e0a23" "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:3504

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5973ef.rbs

          • Path C:\Config.Msi\e5973ef.rbs
          • Size 214KB
          • SHA256 79595b47cd7f789d384eb1ae508ed4a44e70386c98403e2fb8767cb4e8236038
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe
          • Size 689KB
          • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (38c1e2fa0f2f0904)\system.config
          • Size 958B
          • SHA256 9afc1c59f170c52df37424cc36314eb691c996037bb075da26074e24a69e725a
          • MD5 SHA1 SHA512 TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI97C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI97C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\38c1e2fa0f2f0904\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 0f601c1753021a4466ba2f6c1b9313364559739d98b7283a918ac7be4c035d0f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7B51.tmp

          • Path C:\Windows\Installer\MSI7B51.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4frrtjrp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (38c1e2fa0f2f0904)\4frrtjrp.newcfg
          • Size 884B
          • SHA256 e9588270803d8861950c29578ea3500c8f5f2ddfbe9bef574c23672d28c2c848
          • MD5 SHA1 SHA512 TLSH

          nyukma44.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (38c1e2fa0f2f0904)\nyukma44.newcfg
          • Size 683B
          • SHA256 25bce260decc01d36db5184a7c9deb3ff91090629bf2603d671aca1532528a2d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (38c1e2fa0f2f0904)\user.config
          • Size 520B
          • SHA256 1127e0b693864634ceb959259d945e2d7d823bbe6607dc8807e257ad5b9ba91d
          • MD5 SHA1 SHA512 TLSH

          memory/1252-199-0x0000000004910000-0x00000000049E6000-memory.dmp

          memory/1252-197-0x00000000045A0000-0x00000000045E1000-memory.dmp

          memory/1252-195-0x0000000004720000-0x00000000047B2000-memory.dmp

          memory/1252-173-0x00000000043A0000-0x0000000004550000-memory.dmp

          memory/1252-194-0x0000000004610000-0x000000000467C000-memory.dmp

          memory/1252-152-0x0000000003F50000-0x0000000003F6A000-memory.dmp

          memory/1252-168-0x0000000004150000-0x00000000041E6000-memory.dmp

          memory/1252-175-0x0000000004550000-0x00000000045A0000-memory.dmp

          memory/1856-6-0x00000000059C0000-0x0000000005B70000-memory.dmp

          memory/1856-3-0x0000000005880000-0x0000000005916000-memory.dmp

          memory/1856-10-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/1856-11-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/1856-13-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/1856-7-0x0000000006130000-0x00000000066EA000-memory.dmp

          memory/1856-8-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/1856-0-0x0000000074582000-0x0000000074583000-memory.dmp

          memory/1856-5-0x0000000074570000-0x0000000074D2C000-memory.dmp

          memory/1856-1-0x00000000031D0000-0x00000000031D8000-memory.dmp

          memory/1856-2-0x00000000031F0000-0x00000000031FC000-memory.dmp

          memory/1856-4-0x0000000005910000-0x0000000005938000-memory.dmp

          memory/3392-75-0x0000000003720000-0x0000000003748000-memory.dmp

          memory/4524-33-0x0000000005510000-0x000000000553E000-memory.dmp

          memory/4524-37-0x0000000005550000-0x000000000555C000-memory.dmp

          memory/4524-41-0x0000000005750000-0x00000000057E6000-memory.dmp

          memory/4524-45-0x00000000059A0000-0x0000000005B50000-memory.dmp

          memory/5284-218-0x0000000003150000-0x00000000031BC000-memory.dmp

          memory/5284-219-0x0000000003360000-0x00000000033F6000-memory.dmp

          memory/5284-217-0x0000000000F00000-0x0000000000FB0000-memory.dmp

          memory/5284-222-0x000000001C1C0000-0x000000001C370000-memory.dmp

          memory/5284-223-0x0000000001830000-0x000000000184A000-memory.dmp

          memory/5284-224-0x000000001C500000-0x000000001C688000-memory.dmp