Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 18:19

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260701-wx9vbab16l
  • SHA256 3fe7a5bddd82eacdb0fce158cbadf6e4042033ecd763c96bf8af04c7f9eebc02
  • 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 15 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 11 IoCs
  • Suspicious use of SendNotifyMessage 9 IoCs
  • Suspicious use of SetWindowsHookEx 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3736
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\d4572e0d20df1d2e\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
      • Suspicious use of SetWindowsHookEx
      PID:5028
  • 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:1620
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2C203B4000D0F439131E61B536C67D34 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5656
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708203 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4220
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIECDD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708859 12 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1984
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF1C0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240710125 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2620
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6040
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6D7DD763C30549E3F352B3544A35C72C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6080
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E79ED733DFCEA250D1D0DDAB2BA37E18 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1376
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1964
    • C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-neqcsy-relay.screenconnect.com&p=443&s=75d8cf63-b2bc-4752-b10f-9d30dfdfa801&k=BgIAAACkAABSU0ExAAgAAAEAAQDhhp6uFK53rKSVsqM2ApyrPME9891rV1Xd9OHUfNg2ZUBUZAZeznVr1VR9YxXUrnAi47tZ3XnMPE7EA6kz89eY10mpPLflVRLzlv7R01A4XNhEIw9nEgaW%2fTEuB5Iw7zGV3VIEykogZbwrPCnfMvtctuCEVbyPxcY7lm8mY5hn%2f%2b0q4GzHvPDon4oal0wXMz4dsrCPAhzrlBJRdIeEaXIsKgkHz5yLiUJyg2hAHGRUAoCVFrlUfOXoMwKv3yiKKnVL28wUffQF7xqclaZwkmaGk1tOoA7kVD9ZufUaOYvfDY1jEklHQpm46SOQX%2f6mQWYeeCR7mzSFVi2kvg5r7trA&t=WESTVIEW%207-1-26&c=ORSANCO&c=Westview&c=ODS&c=Desktop&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5684
      • C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe" "RunRole" "7f82bed0-8412-4264-b8e0-c27c17b6556f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5000
      • C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe" "RunRole" "754f51ee-095d-4f1b-963b-7ff0c9cb480a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5284

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e594d0e.rbs

          • Path C:\Config.Msi\e594d0e.rbs
          • Size 214KB
          • SHA256 a03d81a1b91b12ac66cbe35e9175fe2308ac58d8ece8ce4f7539cd9440c1fceb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d4572e0d20df1d2e)\system.config
          • Size 952B
          • SHA256 1bff33422ad34bf6a044161e65f4d016c06ddcdabb648f350388a8f86a0d9729
          • MD5 SHA1 SHA512 TLSH

          MSIE79C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE79C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

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

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECDD.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\d4572e0d20df1d2e\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 57132cae69eb0309db952df80fac019018bb38a2392c7cc43070ab7e357d3f65
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI552C.tmp

          • Path C:\Windows\Installer\MSI552C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ckuysln2.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d4572e0d20df1d2e)\ckuysln2.newcfg
          • Size 878B
          • SHA256 67b8aa08a99f99ad4d73a6cfc5e025eb3ce738a8aab84a5cd4342bfadfd4aa0b
          • MD5 SHA1 SHA512 TLSH

          fpttfhgj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d4572e0d20df1d2e)\fpttfhgj.newcfg
          • Size 878B
          • SHA256 5708c6508cd2f5e1ca2d92dbddfde95120c7a5cb3c853b8c5be52c5e7154abfd
          • MD5 SHA1 SHA512 TLSH

          qx5x1kzh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d4572e0d20df1d2e)\qx5x1kzh.newcfg
          • Size 683B
          • SHA256 de61183d69b59e9d10751252a54a860cf7009c28e08ae87d692902c4845b5bbb
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d4572e0d20df1d2e)\user.config
          • Size 878B
          • SHA256 43b63628bd9d78a6f4361bd94cf1e19112e2995012ff115c4caae962d25d1f0e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d4572e0d20df1d2e)\user.config
          • Size 520B
          • SHA256 53cf9b18446dd5abb864068b884712bdd22c9a5b4558cba47c9b6471c6618b98
          • MD5 SHA1 SHA512 TLSH

          {131045f6-bd8b-4dae-a5c7-b65883cc72f1}_OnDiskSnapshotProp

          • Path \??\Volume{1e88ca29-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{131045f6-bd8b-4dae-a5c7-b65883cc72f1}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 d4351f12356983490a5e230992b8b0204c8ccc6ea1d0d7ffd53c9e99284a0b4a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1620-164-0x000001352D8F0000-0x000001352E294000-memory.dmp

          memory/1984-76-0x00000000038D0000-0x00000000038F8000-memory.dmp

          memory/3736-2-0x0000000003810000-0x000000000381C000-memory.dmp

          memory/3736-5-0x0000000003A10000-0x0000000003A38000-memory.dmp

          memory/3736-10-0x0000000074A80000-0x000000007523C000-memory.dmp

          memory/3736-0-0x0000000074A92000-0x0000000074A93000-memory.dmp

          memory/3736-8-0x0000000006610000-0x0000000006BCA000-memory.dmp

          memory/3736-1-0x0000000001E40000-0x0000000001E48000-memory.dmp

          memory/3736-12-0x0000000074A80000-0x000000007523C000-memory.dmp

          memory/3736-3-0x0000000005E10000-0x0000000005EA4000-memory.dmp

          memory/3736-7-0x0000000074A80000-0x000000007523C000-memory.dmp

          memory/3736-4-0x0000000074A80000-0x000000007523C000-memory.dmp

          memory/3736-6-0x0000000005EA0000-0x0000000006050000-memory.dmp

          memory/4220-42-0x0000000005C20000-0x0000000005CB4000-memory.dmp

          memory/4220-46-0x0000000005EE0000-0x0000000006090000-memory.dmp

          memory/4220-38-0x0000000003AD0000-0x0000000003ADC000-memory.dmp

          memory/4220-34-0x0000000003AE0000-0x0000000003B0E000-memory.dmp

          memory/5000-221-0x0000000003000000-0x000000000306C000-memory.dmp

          memory/5000-225-0x000000001C430000-0x000000001C5B8000-memory.dmp

          memory/5000-224-0x00000000016D0000-0x00000000016EA000-memory.dmp

          memory/5000-223-0x000000001C0F0000-0x000000001C2A0000-memory.dmp

          memory/5000-222-0x000000001BEA0000-0x000000001BF34000-memory.dmp

          memory/5000-220-0x0000000000DB0000-0x0000000000E5C000-memory.dmp

          memory/5684-163-0x00000000046D0000-0x0000000004880000-memory.dmp

          memory/5684-177-0x0000000004570000-0x00000000045C0000-memory.dmp

          memory/5684-153-0x0000000004220000-0x000000000423A000-memory.dmp

          memory/5684-197-0x0000000004920000-0x00000000049B2000-memory.dmp

          memory/5684-201-0x0000000004B10000-0x0000000004BE6000-memory.dmp

          memory/5684-159-0x0000000004480000-0x0000000004514000-memory.dmp

          memory/5684-196-0x0000000004630000-0x000000000469C000-memory.dmp

          memory/5684-199-0x00000000045C0000-0x0000000004601000-memory.dmp