Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/11/2026, 19:52

General

  • Target
    ScreenConnect.ClientSetup (2).exe
  • Size 12.2MB
  • Sample261104-ylm8aaee94
  • SHA256 dca4f989a85ff1580da71f8d6574b6af4916b2bd420767e8769b34f33bc36bb8
  • 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 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 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 (2).exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup (2).exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\179440fca7c7fa95\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup (2).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:4340
  • 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:1968
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A972303FB924BD42214FC51CCE5943D0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240699312 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3452
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICB4B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240700375 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:1856
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID0F9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240701703 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5008
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3648
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 01E2DBC33E101DED123CF9D69A0A2A2B
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3724
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4705DD29EDCD641BE5A031BA4C71E019 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2576
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4252
    • C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hcxcz4-relay.screenconnect.com&p=443&s=a09f59ac-88e1-4b8d-9e27-67bfb972f81b&k=BgIAAACkAABSU0ExAAgAAAEAAQCVGKFax8HUdNbSV9INbQ3sg9S3TszLRfeCiafyfxi9bFLIJ0cLGN1%2biyUcE7Utza%2bHpLwIX2GQ77jYfJG00T9MboD6e%2fQMrutIy9Gtk3ZIdOJwfkSebtTHcEC64gTOOwbjmps4K8yr%2bhUKBknqsTqXhOfe9Jti%2b0LqRRiRCeWYgqgGnOQmJDrzUz8S0eXp3ctqnabZxU8RNhCN1RzUIdekOcVBN020qgoxRCQ7Zm0n%2b0YdwzHKNFk4AFKDls%2bkRwwB0GdZ%2fGQAzNqdIJCpJDjjMBarLy7RXi2PqoGLodiRIez3qmBcIfoL0iC9vAyW5ZGvgIczcuQs43EzwoX0ewWh&c=Sec&c=&c=&c=&c=&c=&c=&c=%3fe&c=Vvip&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:3352
      • C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsClient.exe" "RunRole" "ed39d1fb-1fd9-40f7-b901-4ba9a940197f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2032
      • C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsClient.exe" "RunRole" "b171da93-16fb-4ae6-aa63-2ebce5ce380c" "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:4168

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e590d55.rbs

          • Path C:\Config.Msi\e590d55.rbs
          • Size 214KB
          • SHA256 188f993ee4cc87c3f0f255361918011b44767402c238057c8a33316ea18efea6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (179440fca7c7fa95)\system.config
          • Size 960B
          • SHA256 75dce690a1da1ab56ac1d410841503b14179c5021ce18a03b83d8b5368a67a2e
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 35e89b0a0eaa36114bdafc0f6ca557027eec7ae457181370027a30e64d702fd8
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 c12ab73cbb66aa2841e800dfc79d42feeb0af7b03c93483a3c49c17ce70f0fb2
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 87d00f9d4d24a358209bb7a89d3653bfbeabf75145f9c74047515856792cc71d
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 8edb6376cd4b47198e2f8049c2b467c05ed70f4a9851e006415a339b76927385
          • 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

          MSIC6E5.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC6E5.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSICB4B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICB4B.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\179440fca7c7fa95\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 c9601be0d22c732350d39aab90ce9f1d7a5fba5833f6977425c50b3e11f4f23c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF59.tmp

          • Path C:\Windows\Installer\MSIF59.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dap32zyf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (179440fca7c7fa95)\dap32zyf.newcfg
          • Size 683B
          • SHA256 aa5600b624c6f0313db4d2436aa75718656b3bf15a2f341c6f36523a35e71a16
          • MD5 SHA1 SHA512 TLSH

          er0mjs0r.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (179440fca7c7fa95)\er0mjs0r.newcfg
          • Size 882B
          • SHA256 c7dc5fdfa58d4615a1c57045eae05c69fa236f04ed6d6b37cd0243828ae9f124
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (179440fca7c7fa95)\user.config
          • Size 520B
          • SHA256 fa8bdae294332ac58b96c7e69b66be0f3e89af31fe0f27d07770c2d9d9139687
          • MD5 SHA1 SHA512 TLSH

          memory/1856-83-0x0000000005120000-0x0000000005148000-memory.dmp

          memory/2032-231-0x0000000000A10000-0x0000000000AC0000-memory.dmp

          memory/2032-232-0x0000000002C00000-0x0000000002C6C000-memory.dmp

          memory/2032-234-0x000000001BC60000-0x000000001BE10000-memory.dmp

          memory/2032-233-0x000000001BA10000-0x000000001BAA6000-memory.dmp

          memory/2032-236-0x000000001D050000-0x000000001D1D6000-memory.dmp

          memory/2032-235-0x0000000001280000-0x000000000129A000-memory.dmp

          memory/3352-198-0x0000000003DA0000-0x0000000003E32000-memory.dmp

          memory/3352-170-0x0000000003900000-0x0000000003996000-memory.dmp

          memory/3352-174-0x0000000003B50000-0x0000000003D00000-memory.dmp

          memory/3352-164-0x0000000001250000-0x000000000126A000-memory.dmp

          memory/3352-197-0x0000000003A60000-0x0000000003ACC000-memory.dmp

          memory/3352-176-0x00000000039A0000-0x00000000039F0000-memory.dmp

          memory/3352-200-0x00000000039F0000-0x0000000003A31000-memory.dmp

          memory/3352-202-0x0000000003F80000-0x0000000004056000-memory.dmp

          memory/3452-39-0x0000000002650000-0x000000000267E000-memory.dmp

          memory/3452-51-0x0000000004D80000-0x0000000004F30000-memory.dmp

          memory/3452-47-0x0000000004A90000-0x0000000004B26000-memory.dmp

          memory/3452-43-0x0000000002690000-0x000000000269C000-memory.dmp

          memory/3532-0-0x00000000055F0000-0x0000000005600000-memory.dmp

          memory/3532-8-0x00000000055F0000-0x0000000005600000-memory.dmp

          memory/3532-7-0x0000000005EB0000-0x0000000006454000-memory.dmp

          memory/3532-6-0x0000000005740000-0x00000000058F0000-memory.dmp

          memory/3532-5-0x0000000005710000-0x0000000005738000-memory.dmp

          memory/3532-4-0x0000000005670000-0x0000000005706000-memory.dmp

          memory/3532-3-0x0000000002FA0000-0x0000000002FAC000-memory.dmp

          memory/3532-2-0x00000000055F0000-0x0000000005600000-memory.dmp

          memory/3532-1-0x0000000002F80000-0x0000000002F88000-memory.dmp