Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 14:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261026-rq482aev3t
  • SHA256 0c1747b8823008dc8cb60c2276c9cefa295dca0312571e4405d3d515a260402e
  • 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:5308
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\da9dd244b5a20699\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:5792
  • 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:1996
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0C3554A75C51B6C232C5C4E6777720BA C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBFBC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240762921 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1684
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC27C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763546 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:1932
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICB95.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240765906 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4136
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1048
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AF0DF5E84AB537C4E2E51FA8DF812724
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2660
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EBE114E7F8EC71E033299740C89D7C5B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4624
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:3912
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3684
      • C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cyy549-relay.screenconnect.com&p=443&s=fc8281c2-722d-4ae6-9581-27497c4fc1cc&k=BgIAAACkAABSU0ExAAgAAAEAAQABsOm8SVT2KeLRRy2CfviZVBEOly1O075jZiHdNUHRBXrBvkbZuqGGbVzYGa8dY10zt8zjTxbQL%2b8Gqk%2bopvgMQ7t5F1OxAOZ%2bk5VAcmg%2bWbW5YqSs%2bebCm0NN1aNliIlTFi9x3aknNtQmI7gGNMWt1O2QS3koPOjC3IJFmBlJyYOLuxd1%2bhed%2fTptfD7RX0hTFcvVUsZphgPiZocFK%2bjtWqGpGU6%2fTePqwku5CJe8ocVYsgIIheKdZvo8y8H%2bZHs2bKzGN7S1l1e687siV3Z1JbTrkyUj5CwYxRvVKSb9gu8VfXvjPrqLaZK3JoAvTfhph0Ph3F6RATqPXBt8Mrm8&c=&c=&c=BamBamToday-V&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:3484
        • C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe" "RunRole" "6a963bf1-c3bf-489c-b767-cc2a82c9c745" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:4736
        • C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe" "RunRole" "771b4c61-5647-4750-9a18-3d078cabd8a4" "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:4160

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            e5a24e0.rbs

            • Path C:\Config.Msi\e5a24e0.rbs
            • Size 214KB
            • SHA256 548ea5f94f25189f5ea882cf896c13dd2f4f65be12b9cbde7172ff60e59b93ea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\Client.en-US.resources
            • Size 65KB
            • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.Client.dll
            • Size 413KB
            • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.Core.dll
            • Size 583KB
            • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe
            • Size 689KB
            • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (da9dd244b5a20699)\system.config
            • Size 964B
            • SHA256 b9700c413a6f55089342634f9a74d985d5ba53a64707dfa3b0147d4675c5272e
            • MD5 SHA1 SHA512 TLSH

            MSIBFBC.tmp

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

            Microsoft.Deployment.WindowsInstaller.dll

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

            ScreenConnect.Core.dll

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

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSIC27C.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIC27C.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIC27C.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIC27C.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\da9dd244b5a20699\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 4df7ced2d0e6aac69610aa958b12f9eac3aae239cf3a63f7307ee11176ed04a7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI2C42.tmp

            • Path C:\Windows\Installer\MSI2C42.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            1mqdmmgd.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (da9dd244b5a20699)\1mqdmmgd.newcfg
            • Size 683B
            • SHA256 de87ce337b7bde3d8f38d4039d270f3ea1d968e72afafa1e4fde8953bc1177fb
            • MD5 SHA1 SHA512 TLSH

            5etrn0jb.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (da9dd244b5a20699)\5etrn0jb.newcfg
            • Size 883B
            • SHA256 e6d8fa385fa144085c49a4be81dc46295b6bfc7cfecc19951bfd1724e263b0c5
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (da9dd244b5a20699)\user.config
            • Size 520B
            • SHA256 809214a32b4dd7a2c5618e81dce856d59eff639534de8cf7dac54e05507df818
            • MD5 SHA1 SHA512 TLSH

            memory/1684-45-0x0000000005A50000-0x0000000005C00000-memory.dmp

            memory/1684-41-0x0000000005800000-0x0000000005896000-memory.dmp

            memory/1684-37-0x00000000036C0000-0x00000000036CC000-memory.dmp

            memory/1684-33-0x0000000003690000-0x00000000036BE000-memory.dmp

            memory/1932-75-0x0000000005760000-0x0000000005788000-memory.dmp

            memory/3484-175-0x0000000004520000-0x0000000004570000-memory.dmp

            memory/3484-201-0x0000000004A70000-0x0000000004B46000-memory.dmp

            memory/3484-162-0x00000000046D0000-0x0000000004880000-memory.dmp

            memory/3484-199-0x00000000044A0000-0x00000000044E1000-memory.dmp

            memory/3484-197-0x0000000004880000-0x0000000004912000-memory.dmp

            memory/3484-196-0x0000000004570000-0x00000000045DC000-memory.dmp

            memory/3484-158-0x00000000043F0000-0x0000000004486000-memory.dmp

            memory/3484-152-0x0000000001DA0000-0x0000000001DBA000-memory.dmp

            memory/4736-221-0x00000000003D0000-0x0000000000480000-memory.dmp

            memory/4736-227-0x00000000025E0000-0x0000000002621000-memory.dmp

            memory/4736-226-0x000000001C5F0000-0x000000001C778000-memory.dmp

            memory/4736-225-0x00000000025C0000-0x00000000025DA000-memory.dmp

            memory/4736-224-0x000000001B690000-0x000000001B840000-memory.dmp

            memory/4736-223-0x000000001B130000-0x000000001B1C6000-memory.dmp

            memory/4736-222-0x000000001B0C0000-0x000000001B12C000-memory.dmp

            memory/5308-7-0x00000000749F0000-0x00000000751AC000-memory.dmp

            memory/5308-3-0x0000000005B60000-0x0000000005BF6000-memory.dmp

            memory/5308-2-0x0000000003580000-0x000000000358C000-memory.dmp

            memory/5308-12-0x00000000749F0000-0x00000000751AC000-memory.dmp

            memory/5308-1-0x0000000001BB0000-0x0000000001BB8000-memory.dmp

            memory/5308-4-0x00000000749F0000-0x00000000751AC000-memory.dmp

            memory/5308-6-0x0000000005BF0000-0x0000000005DA0000-memory.dmp

            memory/5308-11-0x00000000749F0000-0x00000000751AC000-memory.dmp

            memory/5308-8-0x0000000006360000-0x000000000691A000-memory.dmp

            memory/5308-9-0x00000000749F0000-0x00000000751AC000-memory.dmp

            memory/5308-5-0x0000000003780000-0x00000000037A8000-memory.dmp

            memory/5308-0-0x0000000074A02000-0x0000000074A03000-memory.dmp