Analysis

  • max time kernel
    148s
  • 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
    30/10/2026, 18:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample261030-wvftfsft2l
  • SHA256 4b52f1e8c5fb575908b0081ad902b5582dbba58513d1877b680036e9c9fcd689
  • 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 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:2908
  • 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:5292
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F3EE5B0CD4CEA08B1D3655543A73DB29 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3880
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751921 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4852
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI98CC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752875 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:2368
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA32E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240755625 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5376
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2396
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DE43CEAD77720F3A34E71B2FE93F5B72
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5996
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0B1BB00D134A37FB4D56D58C7E6DD5F3 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3824
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4464
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:4064
      • C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cgvbtf-relay.screenconnect.com&p=443&s=c4c0c69b-72d2-4315-8d00-55c6e367a1b4&k=BgIAAACkAABSU0ExAAgAAAEAAQCt4vA8SNVTsRJf3mFHNkekcR4kowHDf85Xg%2bqY1BCXkzOrz1GgWi1un1xmGzf0jWHnTXY1QM1byk9x5UcgTE7UUlvJRgl05%2fL4q3YDWOwjBZyoL61ZTOC0MCGUdiqZaymVpKN3dBkreiSgAQS96Y4XiuNm83AV5mL6jFzIauGgJpmVOgKYJ8ftTIKFy6VsRn837Gn6amvIgmD%2fzhE%2bIejfapmELpemZKEIwYJfKJScw918bWJ5G8F9G5tJzQ%2bsHjP9ae39fll2NnVHrINRzOQhLDyeXotQuMXlGnU%2fckpfCeI0IXFTbbjpaQtFsnDOU4wI3G1PBwZP6gr1rnqhg3y3"
        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:2168
        • C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe" "RunRole" "7507740e-a8c8-493c-a97a-40799650711d" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:5124
        • C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe" "RunRole" "75456c85-5aa2-49d2-95ee-20f3b3c50f5f" "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:4864

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e59fdc0.rbs

            • Path C:\Config.Msi\e59fdc0.rbs
            • Size 214KB
            • SHA256 200dd7c12f05bf8d31408a789e6c0011e7b1e1b210af599c4c505344d27504fb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\Client.en-US.resources
            • Size 64KB
            • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.Core.dll
            • Size 582KB
            • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe
            • Size 685KB
            • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (5a41438f9ca75e0b)\system.config
            • Size 956B
            • SHA256 99bb0a25a274e73908ee4851758905237f5130a9881bc084f3a9c79c03b45b37
            • MD5 SHA1 SHA512 TLSH

            MSI9437.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp
            • Size 1.1MB
            • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp-\ScreenConnect.Core.dll
            • Size 572KB
            • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI9437.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI98CC.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI98CC.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI60D.tmp

            • Path C:\Windows\Installer\MSI60D.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e59fdc1.msi

            • Path C:\Windows\Installer\e59fdc1.msi
            • Size 9.8MB
            • SHA256 4b52f1e8c5fb575908b0081ad902b5582dbba58513d1877b680036e9c9fcd689
            • MD5 SHA1 SHA512 SSDEEP TLSH

            3qyau2z3.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5a41438f9ca75e0b)\3qyau2z3.newcfg
            • Size 683B
            • SHA256 b46600f1ccd022da8c7c70f39d43979a083d5c429a8e2f0eabe9b7799366453f
            • MD5 SHA1 SHA512 TLSH

            dhqoc0xf.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5a41438f9ca75e0b)\dhqoc0xf.newcfg
            • Size 881B
            • SHA256 3f399c7e73d30d6a5e48087ed7ec61d216e14be0bc291c782fcb855da041a393
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5a41438f9ca75e0b)\user.config
            • Size 520B
            • SHA256 4e297c6b471d9e2ceb7191a9463152a7f5bce102fb7b2eb6b3ac0b6e9832eeae
            • MD5 SHA1 SHA512 TLSH

            {34a6c226-a2b3-42be-b0b6-9cfd3bcc2bb7}_OnDiskSnapshotProp

            • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{34a6c226-a2b3-42be-b0b6-9cfd3bcc2bb7}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 1bfc6b20271aa25b3af07b2cc93c864dae44017166e58a1fe9b951bb9d381a1a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2168-141-0x0000000001970000-0x000000000198A000-memory.dmp

            memory/2168-164-0x0000000004220000-0x0000000004270000-memory.dmp

            memory/2168-185-0x00000000044A0000-0x000000000450C000-memory.dmp

            memory/2168-186-0x00000000045B0000-0x0000000004642000-memory.dmp

            memory/2168-188-0x0000000004430000-0x0000000004471000-memory.dmp

            memory/2168-190-0x00000000047A0000-0x0000000004876000-memory.dmp

            memory/2168-157-0x0000000004030000-0x00000000040C6000-memory.dmp

            memory/2168-162-0x0000000004280000-0x0000000004430000-memory.dmp

            memory/2368-64-0x0000000003EE0000-0x0000000003F08000-memory.dmp

            memory/4852-29-0x0000000005620000-0x00000000056B6000-memory.dmp

            memory/4852-33-0x0000000005870000-0x0000000005A20000-memory.dmp

            memory/4852-25-0x0000000005540000-0x000000000554C000-memory.dmp

            memory/4852-21-0x0000000005550000-0x000000000557E000-memory.dmp

            memory/4852-34-0x0000000005FE0000-0x000000000659A000-memory.dmp

            memory/5124-210-0x00000000006E0000-0x0000000000790000-memory.dmp

            memory/5124-211-0x000000001B380000-0x000000001B3EC000-memory.dmp

            memory/5124-212-0x000000001B7A0000-0x000000001B836000-memory.dmp

            memory/5124-213-0x000000001B9F0000-0x000000001BBA0000-memory.dmp

            memory/5124-214-0x0000000001000000-0x000000000101A000-memory.dmp

            memory/5124-215-0x000000001BD30000-0x000000001BEB8000-memory.dmp