Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/10/2026, 12:56

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.5MB
  • Sample261020-p6l2aahz21
  • SHA256 c6bab563ad3cfc47714d41c3c6e14deea0fd8aa8d6039a6fde88ee29986aa0c9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 10 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 13 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 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\4fd64aa7a6257264\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4828
  • 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 WriteProcessMemory
    PID:2104
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0ACA992892CE7EAC59C51B4C9DC56D78 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5504
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID702.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240703359 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5768
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDC04.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240704515 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:2656
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE27D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240706203 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1684
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5732
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5382E3B2E43CF33AF7AA2332E527D8FA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6084
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8F8BDE3C97875045943007F149C41D93 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2432
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2180
    • C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-q2npjo-relay.screenconnect.com&p=443&s=0de8ed9e-1eca-49ff-9a37-8ae84f363816&k=BgIAAACkAABSU0ExAAgAAAEAAQDJc6TxzC%2fVuI4D3hAOWcNewgsJD%2bl29lNR8UrRyPRTtjNiokCOGnfhENMDFLtGjXn1yN0vd0xO%2b2ZfzU7VX49dbRiqrtHHbLNTWjUkxQlMC%2fDaARcdXr%2feKfhzX5YMXvtBPrPfKPfaRsEelsGV5MH0VTaSWJsTOiLz3J3ZnXfnUK49Rve1tFNc8bqq%2bKqyN8S7JzGaw0u09YhvGU92KNktpWlZIn9Tq4GBakCvyDbGP0BsWR%2b%2fZpoLsiQsQXs%2fzkAk1MWVly%2f9o7W%2feu6quTNMXkNq41TLNax1QySZZVWadgAtz4JQPLp7PjKj4HP2R57qTXaZbIYfDetB1ioMPdXU&c=FAC-factura-hotel&c=FAC-factura-hotel&c=FAC-factura-hotel&c=FAC-factura-hotel&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:5568
      • C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsClient.exe" "RunRole" "1c4959d3-a6f2-4563-a6c8-33949303abe0" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2964
      • C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsClient.exe" "RunRole" "bfd16575-c05d-4ea3-9cea-e3db1d91ceda" "System"
        2⤵
        • Drops file in System32 directory
        • 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:2556

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e592717.rbs

          • Path C:\Config.Msi\e592717.rbs
          • Size 214KB
          • SHA256 2f9f8d097ce498e54c05c6292e139e1bb255bcdb1f8857984a0e490a4b594483
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.fr-FR.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\Client.fr-FR.resources
          • Size 55KB
          • SHA256 db771509ade80cbea5b78cf3b6d99ac87dc70e2c116405ae8c4ed08ae1748e50
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4fd64aa7a6257264)\system.config
          • Size 966B
          • SHA256 e1c1e136670b571a3811228ee0c485a77dc8ebb1e41d7ca31baa75bfc33d9ac8
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 9732f03480ba7aa7c68b2bf5a6b4e5ac8ab3ca6a019a7a4d51d063de8374a973
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 c7ee00eb60772fca16236a7e5c8742754ac233935178d5f415ac084d693072a5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 c546df6e95a21913283815e0cc3e624cac78b6318280ad07ad53e3c80251e15c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 9fba4cc01cb8fb5919f4744491f830f11a7809bcf0fddebf5d21bb76eb539b01
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSID702.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID702.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID702.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID702.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID702.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID702.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC04.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC04.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\4fd64aa7a6257264\ScreenConnect.ClientSetup.msi
          • Size 12.0MB
          • SHA256 4d7de32c7ead8594aa27b9ffbc0fac68ede8dc7ebf5d7becc7190988cbf297ce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI291B.tmp

          • Path C:\Windows\Installer\MSI291B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          02hslk0d.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4fd64aa7a6257264)\02hslk0d.newcfg
          • Size 683B
          • SHA256 4961dbd4ab3bd5b328c34774b0e86a602c10c1742cc8812352607ae9f1d0620a
          • MD5 SHA1 SHA512 TLSH

          q5psqcs4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4fd64aa7a6257264)\q5psqcs4.newcfg
          • Size 885B
          • SHA256 3e57ee3573ef90a469bb9454c2a1318065698f7ca5dc5615344dfbce9b4a8a28
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4fd64aa7a6257264)\user.config
          • Size 520B
          • SHA256 62c5f40d69e00a039a042d8d2128f73da93a681ba98b331b16390871582323b9
          • MD5 SHA1 SHA512 TLSH

          memory/1828-2-0x0000000005900000-0x0000000005910000-memory.dmp

          memory/1828-5-0x0000000005910000-0x0000000005938000-memory.dmp

          memory/1828-1-0x0000000000AA0000-0x0000000000AA8000-memory.dmp

          memory/1828-8-0x0000000005900000-0x0000000005910000-memory.dmp

          memory/1828-3-0x0000000003420000-0x000000000342C000-memory.dmp

          memory/1828-7-0x00000000060A0000-0x0000000006644000-memory.dmp

          memory/1828-6-0x0000000005940000-0x0000000005AF0000-memory.dmp

          memory/1828-4-0x0000000005840000-0x00000000058D6000-memory.dmp

          memory/1828-0-0x0000000005900000-0x0000000005910000-memory.dmp

          memory/2556-240-0x000000001C7D0000-0x000000001C979000-memory.dmp

          memory/2656-83-0x0000000002FA0000-0x0000000002FC8000-memory.dmp

          memory/2964-218-0x0000000000660000-0x0000000000710000-memory.dmp

          memory/2964-219-0x0000000000F30000-0x0000000000F9C000-memory.dmp

          memory/2964-241-0x000000001CAD0000-0x000000001CC79000-memory.dmp

          memory/2964-224-0x0000000000EE0000-0x0000000000F21000-memory.dmp

          memory/2964-223-0x000000001BC50000-0x000000001BDD6000-memory.dmp

          memory/2964-222-0x0000000000EC0000-0x0000000000EDA000-memory.dmp

          memory/2964-221-0x000000001B910000-0x000000001BAC0000-memory.dmp

          memory/2964-220-0x000000001B470000-0x000000001B506000-memory.dmp

          memory/5568-188-0x0000000003A10000-0x0000000003A60000-memory.dmp

          memory/5568-175-0x0000000003BC0000-0x0000000003D70000-memory.dmp

          memory/5568-214-0x0000000003FF0000-0x00000000040C6000-memory.dmp

          memory/5568-165-0x00000000013B0000-0x00000000013CA000-memory.dmp

          memory/5568-209-0x0000000003AD0000-0x0000000003B3C000-memory.dmp

          memory/5568-212-0x0000000003A60000-0x0000000003AA1000-memory.dmp

          memory/5568-210-0x0000000003E10000-0x0000000003EA2000-memory.dmp

          memory/5568-171-0x00000000038D0000-0x0000000003966000-memory.dmp

          memory/5768-47-0x00000000052C0000-0x0000000005356000-memory.dmp

          memory/5768-39-0x0000000005180000-0x00000000051AE000-memory.dmp

          memory/5768-43-0x00000000051C0000-0x00000000051CC000-memory.dmp

          memory/5768-51-0x0000000005510000-0x00000000056C0000-memory.dmp