Analysis

  • max time kernel
    148s
  • max time network
    152s
  • 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, 00:09

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.0MB
  • Sample261102-aft7msyzet
  • SHA256 367f4c1f38f9c9e2b2255561989ad56beffa214fc85d049a35280a2c56b7badc
  • 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 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 50 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Program crash 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 8 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 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:4652
  • 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:1560
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 28C3370623D29F1FE12862DD1D0D4EE9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724984 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5004
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2F06.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725812 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:4564
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI33CA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240727031 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5908
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1324
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CD1EC9F1BB7E8A8C5BD6DE2D75A811B3
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2364
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D170769640D0BDCE726ED8A4769A0FC9 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4148
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3516
    • C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tnu0fl-relay.screenconnect.com&p=443&s=c4e265e9-00f2-4232-9729-df96eb5bc015&k=BgIAAACkAABSU0ExAAgAAAEAAQAZh%2bLD4S2U2AXsoAPpeOzAJ3wZ21TyDQIgm1bf80%2fMRJ4vwuBKZiaBzena7wAL%2fOtVH6Hq85yR8EW4gKRN7ddjc748eIDD%2bwHP6XuFbN%2fcZMcF%2bzKsR2H9U%2b6dQkWH5sTDBCFWd7iuhAmJKhbQoFcev6NkzI8WVJxaPWTAmjc%2bSDjDNij2%2f1u%2bzlLUcPc2Vna3L5%2bngroH730Sz%2f0cn4rf4oTMhF06Qluzl5XHBWuqGYGCWqBlXp7epaDwwyInpbHIn89c7U62M3xB4noPjc6UWAUTt8M6SyqPhr9enmCDzjLJrzitqYXkFe0JlwbEbyXqDHCskS91Olr5ku33IujA&c=1God%2cLLC&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:4136
      • C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.WindowsClient.exe" "RunRole" "d064d569-48b1-40fb-8b2c-a74ae1680cd8" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2200
      • C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.WindowsClient.exe" "RunRole" "40fa8aa2-360d-41b6-a04b-cfc2bcc48164" "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:4380
    • C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tnu0fl-relay.screenconnect.com&p=443&s=c4e265e9-00f2-4232-9729-df96eb5bc015&k=BgIAAACkAABSU0ExAAgAAAEAAQAZhbLD4S2U2AXsoAPpeOzAJ3wZ21TyDQIgm1bf80fMRJ4vwuBKZiaBzena7wALfOtVH6Hq85yR8EW4gKRN7ddjc748eIDDbwHP6XuFbNfcZMcFbzKsR2H9Ub6dQkWH5sTDBCFWd7iuhAmJKhbQoFcev6NkzI8WVJxaPWTAmjcbSDjDNij2f1ubzlLUcPc2Vna3L5bngroH730Szf0cn4rf4oTMhF06Qluzl5XHBWuqGYGCWqBlXp7epaDwwyInpbHIn89c7U62M3xB4noPjc6UWAUTt8M6SyqPhr9enmCDzjLJrzitqYXkFe0JlwbEbyXqDHCskS91Olr5ku33IujA&c=1GodcLLC&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:804
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 1308
        2⤵
        • Program crash
        PID:4468
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 804 -ip 804
      1⤵
        PID:5572

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e596ebf.rbs

            • Path C:\Config.Msi\e596ebf.rbs
            • Size 214KB
            • SHA256 45d2d25220eca8f657e09f05eea041dda50808a0c1b99448ca7158be6863d28c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.Client.dll
            • Size 413KB
            • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.Core.dll
            • Size 583KB
            • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (a53cb5bbf6490b51)\system.config
            • Size 968B
            • SHA256 578aa3b667174cf8c06b5d8cd1f5797df4d188b7d4643bfa0d3b795023f0320e
            • MD5 SHA1 SHA512 TLSH

            MSI2B0E.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp
            • Size 1.1MB
            • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp-\ScreenConnect.Core.dll
            • Size 573KB
            • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2B0E.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2F06.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI2F06.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI7304.tmp

            • Path C:\Windows\Installer\MSI7304.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e596ec0.msi

            • Path C:\Windows\Installer\e596ec0.msi
            • Size 12.0MB
            • SHA256 367f4c1f38f9c9e2b2255561989ad56beffa214fc85d049a35280a2c56b7badc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            kqz14c25.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a53cb5bbf6490b51)\kqz14c25.newcfg
            • Size 683B
            • SHA256 fef251f5a47225586aa8c501ac2e30ebc8d5de350db251a7d858043cc2c690b5
            • MD5 SHA1 SHA512 TLSH

            tz2fmzec.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a53cb5bbf6490b51)\tz2fmzec.newcfg
            • Size 884B
            • SHA256 1684054acc878b3164600e061736b995b38ce6f335106eaeb70832acffbcf635
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a53cb5bbf6490b51)\user.config
            • Size 520B
            • SHA256 d95224087dfee87720f2a7c357e1ccce5955d0217ef198379bc6f11f0a8b4676
            • MD5 SHA1 SHA512 TLSH

            memory/804-143-0x00000000024E0000-0x00000000024FA000-memory.dmp

            memory/2200-214-0x000000001BFC0000-0x000000001C056000-memory.dmp

            memory/2200-215-0x000000001C310000-0x000000001C4C0000-memory.dmp

            memory/2200-212-0x0000000000EF0000-0x0000000000FA0000-memory.dmp

            memory/2200-213-0x0000000003200000-0x000000000326C000-memory.dmp

            memory/2200-219-0x000000001C4C0000-0x000000001C648000-memory.dmp

            memory/2200-218-0x0000000001910000-0x000000000192A000-memory.dmp

            memory/4136-198-0x00000000041E0000-0x0000000004221000-memory.dmp

            memory/4136-196-0x00000000044C0000-0x0000000004552000-memory.dmp

            memory/4136-160-0x00000000042A0000-0x0000000004450000-memory.dmp

            memory/4136-199-0x00000000046B0000-0x0000000004786000-memory.dmp

            memory/4136-155-0x0000000004050000-0x00000000040E6000-memory.dmp

            memory/4136-195-0x0000000004450000-0x00000000044BC000-memory.dmp

            memory/4136-163-0x0000000004190000-0x00000000041E0000-memory.dmp

            memory/4564-64-0x00000000038C0000-0x00000000038E8000-memory.dmp

            memory/5004-34-0x0000000006420000-0x00000000069DA000-memory.dmp

            memory/5004-25-0x0000000003840000-0x000000000384C000-memory.dmp

            memory/5004-33-0x0000000005CB0000-0x0000000005E60000-memory.dmp

            memory/5004-29-0x0000000003900000-0x0000000003996000-memory.dmp

            memory/5004-21-0x0000000003800000-0x000000000382E000-memory.dmp