Analysis

  • max time kernel
    37s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260707-ww87dsct2j
  • SHA256 631425d207e50b3cfc74d9ad0b0722493f6340a06c59f153f330b8d534b69fe8
  • 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.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Loads dropped DLL 30 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 47 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 5 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
    • Suspicious use of SetWindowsHookEx
    PID:1192
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5156
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A584801F332386E769376445C23B0FB8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3380
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752234 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3712
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA31D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240755531 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1724
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIAFA1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240758890 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1468
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4412
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 28366249A8D2D82FB9CA399A2178F654
        2⤵
          PID:2952
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding 3D842426C2CAF9DCD43E9C4C9A6601BE E Global\MSI0000
          2⤵
            PID:6072
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:3196
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3452
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Enumerates connected drives
            • Checks SCSI registry key(s)
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            PID:984
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
            PID:4992
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:2588
            • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe
              "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-accmjr-relay.screenconnect.com&p=443&s=a67dcffe-65c5-4bd3-a854-216a9c77bde5&k=BgIAAACkAABSU0ExAAgAAAEAAQAdTg6A%2fbNb0p%2fzH0oCf1%2brAmFZHGuhen%2flfEhoC9AbBPiCPRDbpvJg6Jo1Z80F9uhEffH59YnY%2frJNGMCSXeovHCWVra5fpZHBiPUEEYqjLJbUsOz9NU20lc3ZTK%2bSHGR%2bkjuN67amMBXBDnqa988IgvGntmfsQVqPYAY3Cx4%2bCdXDDTlXLoTag%2fF5uih3p8hrFflvg8fjXP60oYLKqb8jPJXM7GmEfnNKBeU2C7Cf8%2fzh6iP3AquvtMqOOTw6iHx38yai6kdogZOqhOIrIyNzKMCvpGmYmhQGDWXtq%2fJjGZBG%2bCQTkBUJQEaVrFX6xD4Yp9XDTMP02tL5BNMN9VXL"
              1⤵
                PID:5996
                • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
                  "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe" "RunRole" "821b24b7-d04c-4b5f-bdef-b60682004c75" "User"
                  2⤵
                    PID:4348
                  • C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
                    "C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe" "RunRole" "daf4feca-99b7-4b22-a459-0d9da307aee6" "System"
                    2⤵
                      PID:4300

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        e5a7e2b.rbs

                        • Path C:\Config.Msi\e5a7e2b.rbs
                        • Size 214KB
                        • SHA256 1ccd492ea1e10748a786f7c6bf98fc6d2895ad7215040ccf28c17630d10285b7
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        Client.en-US.resources

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\Client.en-US.resources
                        • Size 64KB
                        • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        Client.resources

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\Client.resources
                        • Size 6KB
                        • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.Client.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Client.dll
                        • Size 412KB
                        • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.ClientService.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.dll
                        • Size 91KB
                        • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.ClientService.exe

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.ClientService.exe
                        • Size 93KB
                        • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.Core.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Core.dll
                        • Size 577KB
                        • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.Windows.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.Windows.dll
                        • Size 1.7MB
                        • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.WindowsAuthenticationPackage.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsAuthenticationPackage.dll
                        • Size 254KB
                        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.WindowsClient.exe

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe
                        • Size 675KB
                        • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.WindowsClient.exe.config

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsClient.exe.config
                        • Size 266B
                        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
                        • MD5 SHA1 SHA512 TLSH

                        ScreenConnect.WindowsCredentialProvider.dll

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\ScreenConnect.WindowsCredentialProvider.dll
                        • Size 837KB
                        • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        system.config

                        • Path C:\Program Files (x86)\ScreenConnect Client (edb47a9132b9e027)\system.config
                        • Size 968B
                        • SHA256 e00a42502c48fb816fb73e7a646b39c21c243ded76cb28f67fc544341e0e198b
                        • MD5 SHA1 SHA512 TLSH

                        57C8EDB95DF3F0AD4EE2DC2B8CFD4157

                        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
                        • Size 4KB
                        • SHA256 0300e9ddb527990e8b59d06e9ccf3ec2bd92d3bbd0ef4fba69d6336e4195e82d
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        57C8EDB95DF3F0AD4EE2DC2B8CFD4157

                        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
                        • Size 342B
                        • SHA256 d66bdf6fc0892b0610d6e7dbf22cb71e65f8ec20f99fa79095744a64e4c9a52a
                        • MD5 SHA1 SHA512 TLSH

                        prep_Activatable Class_Hermes_perf.cache

                        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
                        • Size 607B
                        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
                        • MD5 SHA1 SHA512 TLSH

                        MSI937C.tmp

                        • Path C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp
                        • Size 1.1MB
                        • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        Microsoft.Deployment.WindowsInstaller.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
                        • Size 172KB
                        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.Core.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp-\ScreenConnect.Core.dll
                        • Size 567KB
                        • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.InstallerActions.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp-\ScreenConnect.InstallerActions.dll
                        • Size 24KB
                        • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ScreenConnect.Windows.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\MSI937C.tmp-\ScreenConnect.Windows.dll
                        • Size 1.7MB
                        • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        CustomAction.config

                        • Path C:\Users\Admin\AppData\Local\Temp\MSIA31D.tmp-\CustomAction.config
                        • Size 234B
                        • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
                        • MD5 SHA1 SHA512 TLSH

                        ScreenConnect.WindowsInstaller.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\MSIA31D.tmp-\ScreenConnect.WindowsInstaller.dll
                        • Size 137KB
                        • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        MSI89B4.tmp

                        • Path C:\Windows\Installer\MSI89B4.tmp
                        • Size 202KB
                        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        e5a7e2a.msi

                        • Path C:\Windows\Installer\e5a7e2a.msi
                        • Size 9.8MB
                        • SHA256 631425d207e50b3cfc74d9ad0b0722493f6340a06c59f153f330b8d534b69fe8
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        a5oopwnq.newcfg

                        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\a5oopwnq.newcfg
                        • Size 882B
                        • SHA256 f6309b67c64883d23bdfacb63a6cb97de29ee01f204c4f0d54b47791b12d12d0
                        • MD5 SHA1 SHA512 TLSH

                        user.config

                        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\user.config
                        • Size 683B
                        • SHA256 323f87abafcedb371b8ca34246e9084f8cef66e810dd12f049b685aaef38794d
                        • MD5 SHA1 SHA512 TLSH

                        user.config

                        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (edb47a9132b9e027)\user.config
                        • Size 520B
                        • SHA256 ed974f8d24e6aaa411a2b21f51ab21ea2a463e7533c4481896379e88ea2cbc28
                        • MD5 SHA1 SHA512 TLSH

                        memory/1724-62-0x0000000003390000-0x00000000033B8000-memory.dmp

                        memory/3712-32-0x0000000005F90000-0x000000000654A000-memory.dmp

                        memory/3712-19-0x0000000002700000-0x000000000272E000-memory.dmp

                        memory/3712-23-0x0000000002730000-0x000000000273C000-memory.dmp

                        memory/3712-27-0x00000000055D0000-0x0000000005664000-memory.dmp

                        memory/3712-31-0x0000000005820000-0x00000000059D0000-memory.dmp

                        memory/4348-397-0x00000000028F0000-0x0000000002931000-memory.dmp

                        memory/4348-396-0x000000001BD90000-0x000000001BF18000-memory.dmp

                        memory/4348-395-0x00000000028D0000-0x00000000028EA000-memory.dmp

                        memory/4348-394-0x000000001BA50000-0x000000001BC00000-memory.dmp

                        memory/4348-393-0x0000000002BD0000-0x0000000002C64000-memory.dmp

                        memory/4348-392-0x0000000002950000-0x00000000029BC000-memory.dmp

                        memory/4348-391-0x00000000006F0000-0x000000000079C000-memory.dmp

                        memory/4992-139-0x0000026113CE0000-0x0000026113DE0000-memory.dmp

                        memory/4992-125-0x0000026100100000-0x0000026100200000-memory.dmp

                        memory/4992-172-0x0000026114100000-0x0000026114120000-memory.dmp

                        memory/4992-154-0x0000026103AA0000-0x0000026103AC0000-memory.dmp

                        memory/4992-138-0x0000026103880000-0x00000261038A0000-memory.dmp

                        memory/5996-371-0x0000000004D20000-0x0000000004DF6000-memory.dmp

                        memory/5996-369-0x0000000004770000-0x00000000047B1000-memory.dmp

                        memory/5996-367-0x0000000004B30000-0x0000000004BC2000-memory.dmp

                        memory/5996-366-0x0000000004A20000-0x0000000004A8C000-memory.dmp

                        memory/5996-338-0x00000000047B0000-0x0000000004960000-memory.dmp

                        memory/5996-349-0x0000000004960000-0x00000000049B0000-memory.dmp

                        memory/5996-326-0x0000000004470000-0x000000000448A000-memory.dmp

                        memory/5996-332-0x0000000004560000-0x00000000045F4000-memory.dmp