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
    30/10/2026, 18:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample261030-wvfhpad16w
  • SHA256 25f8840210c4d997cb6a0491c80e069389bf812071cbafb935e2269630ce1950
  • 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:5192
  • 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:5904
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 19B3B212EFFB767C9D9F8CB945263C61 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4540
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240696812 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5872
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC1E5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240697859 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:4208
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC996.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240699843 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3592
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3968
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B29FF620BF6C98A88002F2B9E9C22458
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3044
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3C65A69CF0621E42BA38BA0B729731D8 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4892
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:548
    • C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nt2vlj-relay.screenconnect.com&p=443&s=8c6cada3-bb09-41f6-9240-66d36ce960f3&k=BgIAAACkAABSU0ExAAgAAAEAAQBxX1SrGUvjTEDqIpr5TSFjHmIFZe23QsJ343fgScqM026zcwu0XI%2bsVTPPLbdrtRZbNMX82PbRJaMsboMYlAn8sEtAat8R3Me3Hv6OKHAWmryLJN629EYcj85ABUcmkC8a6V6YnYDyY0DMvSXlirzU5bcBbve5GzBjqkV5%2bpTjtR2sLJJPS4mZs3cBEpuBgozz9zbJQ7C00iz9wXkPKTIWuR3xkEGyA6%2f991uqwpJ%2fbCwf0FKEhef20oVnjf4BE0l3qjorj02UPgZ%2fKV8z9ZvW008JJK0vcm01T%2fVTlXGGlfIBpaXRGfKCOfT7AOXYiD2GhNk6vp2dJWAnVjSEgaHO"
      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:1204
      • C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe" "RunRole" "1a82323c-d4c2-4aaa-bc6c-6699f76b4e6c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5152
      • C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe" "RunRole" "6d076624-5527-400d-af30-d595888ae0f6" "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:1888

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5918a0.rbs

          • Path C:\Config.Msi\e5918a0.rbs
          • Size 214KB
          • SHA256 938bf79931e6cf0b8e550e348c8fb3945092c67dfff7086c3842772b95c3d608
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb515d1e6bd122c)\system.config
          • Size 956B
          • SHA256 6e49346b85631dc8bf2076cbe4d779e7860eeb7c58592e54fd9893c8141fee09
          • MD5 SHA1 SHA512 TLSH

          MSIBC65.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC65.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC1E5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC1E5.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI1F18.tmp

          • Path C:\Windows\Installer\MSI1F18.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5918a1.msi

          • Path C:\Windows\Installer\e5918a1.msi
          • Size 9.8MB
          • SHA256 25f8840210c4d997cb6a0491c80e069389bf812071cbafb935e2269630ce1950
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dhcnltvc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb515d1e6bd122c)\dhcnltvc.newcfg
          • Size 883B
          • SHA256 8f1978b52f1c3c8372a8fa002848f784fbd3391cbd9fbcf7c70cf7ba0b6d4666
          • MD5 SHA1 SHA512 TLSH

          r2epep0q.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb515d1e6bd122c)\r2epep0q.newcfg
          • Size 683B
          • SHA256 2c518dc0736cf7d6d20156380096c76b1aea6abdfa7940ec94922fd8c6f825a1
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb515d1e6bd122c)\user.config
          • Size 520B
          • SHA256 a8e56f88cae328b3528723269480b0247c1fd63ad875ce491ea864a9939457fe
          • MD5 SHA1 SHA512 TLSH

          {bf5469ac-f26e-4a7f-93aa-b7b08bcebc2a}_OnDiskSnapshotProp

          • Path \??\Volume{0a1bed32-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{bf5469ac-f26e-4a7f-93aa-b7b08bcebc2a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 954084202bf101b5e509d7ee4967c70a25b6875bb12c378d8cf6baffed324ef6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1204-184-0x0000000004200000-0x0000000004292000-memory.dmp

          memory/1204-164-0x0000000003E50000-0x0000000003EA0000-memory.dmp

          memory/1204-183-0x0000000003F10000-0x0000000003F7C000-memory.dmp

          memory/1204-151-0x0000000003FB0000-0x0000000004160000-memory.dmp

          memory/1204-147-0x0000000003D60000-0x0000000003DF6000-memory.dmp

          memory/1204-188-0x00000000043F0000-0x00000000044C6000-memory.dmp

          memory/1204-186-0x0000000003EA0000-0x0000000003EE1000-memory.dmp

          memory/1204-141-0x00000000017E0000-0x00000000017FA000-memory.dmp

          memory/4208-64-0x00000000056E0000-0x0000000005708000-memory.dmp

          memory/5152-208-0x0000000000C00000-0x0000000000CB0000-memory.dmp

          memory/5152-209-0x000000001B890000-0x000000001B8FC000-memory.dmp

          memory/5152-210-0x000000001BCF0000-0x000000001BD86000-memory.dmp

          memory/5152-211-0x000000001BF40000-0x000000001C0F0000-memory.dmp

          memory/5152-212-0x0000000002DD0000-0x0000000002DEA000-memory.dmp

          memory/5152-213-0x000000001C280000-0x000000001C408000-memory.dmp

          memory/5872-33-0x0000000006280000-0x0000000006430000-memory.dmp

          memory/5872-29-0x0000000006030000-0x00000000060C6000-memory.dmp

          memory/5872-25-0x0000000005F40000-0x0000000005F4C000-memory.dmp

          memory/5872-34-0x00000000069F0000-0x0000000006FAA000-memory.dmp

          memory/5872-21-0x0000000005F00000-0x0000000005F2E000-memory.dmp