Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/10/2026, 06:38

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261023-hee1bsas21
  • SHA256 94a4861b20728579db75c1bda617407e1fc8c3571eb279f8036eed2f4065a329
  • 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 14 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 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 10 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:4280
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\3ed2223b4939ad36\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:624
  • 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:4080
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0A9BCDB8D958723B3BD4BAF6CB60F009 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240688140 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1076
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA082.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689343 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:4344
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA814.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240691234 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4196
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4496
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A6914C49CAF1F85096AEE993F32FE9DA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1164
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1F1ADFCDB2480EF4AA96C53772D8602D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2120
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2500
    • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jtzukz-relay.screenconnect.com&p=443&s=018f6551-d73b-40ae-adf7-e1e964f78299&k=BgIAAACkAABSU0ExAAgAAAEAAQCtGGVj1zF32KaQ%2ba7RKxtFSlcsFXnsyX%2f16wGjl44ZMfjrHn1KaYTYumel604F4soWki6Ty8%2f2nOk51yVzrengyR3%2fcOdOfi3QT1ITl4A33y4jSbL48ypSBZcBbidVBChOpuiyD7rJgoJthuMjxgbA65f6O2GUK%2fIQRFqIwkvmaZdZ6OIeoA0IZ%2bTrUnE3FXJHG3AQNIT9gRaeXGabYlj5pRUGe62gErMKSipusjyvh1BUdV1vZ22GhyliwRzAXWOE3R%2b%2bfT3kYytGDA8qwpm71YLQJpP3ODLRe%2b01zLb%2fwDEw7vW95gtvBZy2gFEb2tdq5yuCifBd7xLanrFqmAi6&c=NEWTD&c=&c=&c=TD&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:720
      • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe" "RunRole" "1fc63bd5-153b-402c-9704-652f5b9103e0" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:116
      • C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsClient.exe" "RunRole" "ccaadc6e-e9c8-451e-abc9-af269d099404" "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:3128

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58ed79.rbs

          • Path C:\Config.Msi\e58ed79.rbs
          • Size 214KB
          • SHA256 09163ef77320d3eddf802f2ba14b1e374eee4e10cbaec9097eba285bf06fcb7a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3ed2223b4939ad36)\system.config
          • Size 964B
          • SHA256 cc47cb037669a9eb9ab88b7184f79f65d1ed3e562e5b8856676c4437b64b9c44
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 1d5b92797a20cd8a72affbf826bcb7721764d5b1fa7d2cdcb0e30fb3eb78a960
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 bb02ff717d514309b00a0e83888658e919a0f576ef5784825de39335379eb6f3
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 eae1cdb586c379e2bcb6f76c6b27b4a54872ae081311b911471a780125b2208e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 25bf281e3b68890f0007d6a8a15e307b845a149b58de6e8d6e05002e730857bf
          • 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

          MSI9BCE.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9BCE.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA082.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA082.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\3ed2223b4939ad36\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 54fb0ed741655ff3627c459d8f18acc220005b2f75fef43941ceb60de606dc6a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEF9C.tmp

          • Path C:\Windows\Installer\MSIEF9C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e05ltldy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\e05ltldy.newcfg
          • Size 683B
          • SHA256 f343d3a596a1b7dec365163d58e8314fa568012cfd824197a9f80d58aaa8bc8b
          • MD5 SHA1 SHA512 TLSH

          pl4baaz5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\pl4baaz5.newcfg
          • Size 883B
          • SHA256 47f494e80ebcffe52d20564025de2de22aa061ed50e1689c3daab17da1f24e69
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\user.config
          • Size 520B
          • SHA256 748a5c7061f59bb74b99874dc53a9d56850e5faaa71e84a1909faebbb12cb323
          • MD5 SHA1 SHA512 TLSH

          ysnzhwci.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3ed2223b4939ad36)\ysnzhwci.newcfg
          • Size 883B
          • SHA256 e2932b1caa8e91d1ee863ed2c382de9e26afc614188d53bf42180220845e8a90
          • MD5 SHA1 SHA512 TLSH

          memory/116-231-0x0000000002540000-0x00000000025D6000-memory.dmp

          memory/116-234-0x000000001C460000-0x000000001C5E6000-memory.dmp

          memory/116-233-0x0000000000B20000-0x0000000000B3A000-memory.dmp

          memory/116-227-0x00000000002A0000-0x0000000000350000-memory.dmp

          memory/116-232-0x000000001B4A0000-0x000000001B650000-memory.dmp

          memory/116-228-0x0000000000C00000-0x0000000000C6C000-memory.dmp

          memory/720-176-0x00000000039B0000-0x0000000003A00000-memory.dmp

          memory/720-174-0x0000000003B00000-0x0000000003CB0000-memory.dmp

          memory/720-170-0x00000000038B0000-0x0000000003946000-memory.dmp

          memory/720-164-0x00000000037A0000-0x00000000037BA000-memory.dmp

          memory/720-195-0x0000000003A70000-0x0000000003ADC000-memory.dmp

          memory/720-208-0x0000000003A00000-0x0000000003A41000-memory.dmp

          memory/720-211-0x0000000003F30000-0x0000000004006000-memory.dmp

          memory/720-206-0x0000000003D50000-0x0000000003DE2000-memory.dmp

          memory/1076-51-0x0000000005920000-0x0000000005AD0000-memory.dmp

          memory/1076-43-0x0000000003270000-0x000000000327C000-memory.dmp

          memory/1076-47-0x00000000056D0000-0x0000000005766000-memory.dmp

          memory/1076-39-0x0000000003230000-0x000000000325E000-memory.dmp

          memory/4280-5-0x0000000003790000-0x00000000037B8000-memory.dmp

          memory/4280-1-0x0000000001E00000-0x0000000001E08000-memory.dmp

          memory/4280-2-0x0000000005E90000-0x0000000005EA0000-memory.dmp

          memory/4280-0-0x0000000005E90000-0x0000000005EA0000-memory.dmp

          memory/4280-3-0x0000000001E70000-0x0000000001E7C000-memory.dmp

          memory/4280-4-0x0000000005D30000-0x0000000005DC6000-memory.dmp

          memory/4280-6-0x0000000005EA0000-0x0000000006050000-memory.dmp

          memory/4280-7-0x0000000006600000-0x0000000006BA4000-memory.dmp

          memory/4280-8-0x0000000005E90000-0x0000000005EA0000-memory.dmp

          memory/4344-83-0x0000000002F80000-0x0000000002FA8000-memory.dmp