Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/06/2026, 18:18

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.7MB
  • Sample260624-wx2hyaew2r
  • SHA256 7fca0f2e5778b4a562ffd84776be031a88acd0d06f3d6bb593ff266c51630e9a
  • 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.

  • 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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 42 IoCs
  • 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 21 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 20 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of WriteProcessMemory 8 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
    PID:3168
  • 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:5076
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2160601A24D948EDDFA5CFDB5A3A553D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2128
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240668406 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI50FA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240668937 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2384
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI567A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240670343 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:372
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1708
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3E019DCEDFE7C2E42FB576159F695E95
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3304
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3C7CABB5C6340659B40F11A94C6D45B9 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4380
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3948
    • C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-v85iz9-relay.screenconnect.com&p=443&s=7f2f072e-d2a0-47ef-adcb-242c23d031c4&k=BgIAAACkAABSU0ExAAgAAAEAAQAdTrq%2f%2bBFZDnNb4jXjjSSdK%2bROGwlBwXOtZg5orTD4WoqLgiiqyTank1k%2fIhLwaPz52DpPIyCLYkQi6Z%2fqRLz0ZwW0nrYFHB6vSyJ%2f3cB79KgUiSyQ5OKQKA9kMJP9uxCpzSFSjC%2feFhuY0vd5W5WLuvEwPiGS%2f1oec7M0QUWOoWtrcRibAWwxeB76bjQyKwv2874YBj1y6ZxSjFCRnPYpHaxrr1v5oMZreU6K5AVDNfI4U%2fN6Y9LFX%2fOHRQ3Hb2JSSG0zZNTE2dgs2pjNceDaZUe8WDJzCVBQYeHqWGrXQho19VM%2fZco%2fLmRkYw6cWld2Jc%2bwyBjWYuihQK9JvoK7"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.WindowsClient.exe" "RunRole" "501553a8-2709-4d58-b685-f9ee09ad0ad7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4152

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5898b2.rbs

          • Path C:\Config.Msi\e5898b2.rbs
          • Size 214KB
          • SHA256 7297966b3e2ebc6b74edb194080a047f460bb26e71a7f4e0c85ed042fd067e8a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.WindowsClient.exe
          • Size 665KB
          • SHA256 6e95d68102dc761942e67e2337ad8e49d32ee7c8943340489a01e2c56ea6e00b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (01266a090f35e19c)\system.config
          • Size 970B
          • SHA256 46d2cf4e2bad0aef7aaca0f2a6c1a1dd1bc1827e3fb90be164393dcc663852ab
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 64c8d78f5eb3dc97f04c9215562abf44ab37f4736a6370c57bfd43f9a9008064
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 84ea1f868ea1627ea26cce5464d7bbb27da2b78e0f793a5e057d5a75d122d4ca
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 800bbadf8a7fa4a025cc5ee412edd5ba5496bfd7a9129a077266628ac3047c60
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 9aed92e0ae69500046d9be0b5b369ff599c60deb95f319211c45eb1383ad81b8
          • 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

          MSI4E98.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E98.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI50FA.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI50FA.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI9A67.tmp

          • Path C:\Windows\Installer\MSI9A67.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5898b1.msi

          • Path C:\Windows\Installer\e5898b1.msi
          • Size 9.7MB
          • SHA256 7fca0f2e5778b4a562ffd84776be031a88acd0d06f3d6bb593ff266c51630e9a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          01e4xasc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\01e4xasc.newcfg
          • Size 588B
          • SHA256 7d58eb467a0263e2d8c4877f95e61d00414fbd881938bc3f1ff7ca01d3c7067c
          • MD5 SHA1 SHA512 TLSH

          lhf5bkrj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\lhf5bkrj.newcfg
          • Size 588B
          • SHA256 6d19ed314e74c56e319d030265db7b137ae39b8041363bb8e9a64212b7187280
          • MD5 SHA1 SHA512 TLSH

          ttoskllq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\ttoskllq.newcfg
          • Size 588B
          • SHA256 048cca4091d1bb36c8e0e3e41ce856b1399a3ab2884072094789ae9380621933
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\user.config
          • Size 588B
          • SHA256 5830e302c6a8168643e7171ea647cdc0ad9b329cd2ff34c9668182d19327d29e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\user.config
          • Size 588B
          • SHA256 8d3214dd31887deafd28722ca62f96a0d1ff9ee570ed36cc5b20222451a474d5
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\user.config
          • Size 588B
          • SHA256 ed8aa147574798efc7cb610a800b673b334f7d9dd12665b71d5c9b9fff5659f3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (01266a090f35e19c)\user.config
          • Size 588B
          • SHA256 ba802f0def2a3d5544fc1ede0519af99668a51f824c8a88916a09b739c1047e3
          • MD5 SHA1 SHA512 TLSH

          memory/1296-42-0x0000000005AC0000-0x0000000006064000-memory.dmp

          memory/1296-29-0x0000000002BF0000-0x0000000002C1E000-memory.dmp

          memory/1296-41-0x0000000005360000-0x0000000005510000-memory.dmp

          memory/1296-37-0x0000000005030000-0x00000000050C4000-memory.dmp

          memory/1296-33-0x0000000002C30000-0x0000000002C3C000-memory.dmp

          memory/2384-74-0x0000000005610000-0x0000000005638000-memory.dmp

          memory/3536-172-0x0000000004060000-0x00000000040F2000-memory.dmp

          memory/3536-176-0x0000000004240000-0x0000000004315000-memory.dmp

          memory/3536-167-0x0000000003C60000-0x0000000003CB0000-memory.dmp

          memory/3536-171-0x0000000003D20000-0x0000000003D8A000-memory.dmp

          memory/3536-165-0x0000000003E10000-0x0000000003FC0000-memory.dmp

          memory/3536-155-0x00000000014C0000-0x00000000014DA000-memory.dmp

          memory/3536-174-0x0000000003CB0000-0x0000000003CF1000-memory.dmp

          memory/3536-161-0x0000000003BC0000-0x0000000003C54000-memory.dmp

          memory/4152-197-0x000000001BAE0000-0x000000001BC90000-memory.dmp

          memory/4152-200-0x00000000011B0000-0x00000000011CA000-memory.dmp

          memory/4152-199-0x0000000001160000-0x000000000117A000-memory.dmp

          memory/4152-198-0x000000001BE20000-0x000000001BFA6000-memory.dmp

          memory/4152-195-0x0000000002AA0000-0x0000000002B0A000-memory.dmp

          memory/4152-196-0x000000001B890000-0x000000001B924000-memory.dmp

          memory/4152-194-0x00000000008F0000-0x000000000099A000-memory.dmp