Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/06/2026, 18:26

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.2MB
  • Sample260623-w29ecafv4x
  • SHA256 e8d011567eb215436fa763cd1953a2f770aa9342020a20ea6056d8d60117b0ef
  • 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 9 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 17 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 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 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:2304
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\2a44520c741a996c\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:1264
  • 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:1560
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding FCFEEEE6DB3645C5063F3A18C94CFD43 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717718 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5272
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240718718 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2740
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI190E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720296 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4116
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3204
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 57A8C6F0E797EB6363B63371B22D3244
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1532
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6D50BFE9026D99186E74449FB5573353 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5900
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:348
    • C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-zoh45o-relay.screenconnect.com&p=443&s=7250cabc-37fc-4b2e-9f5b-da2c1fd967d0&k=BgIAAACkAABSU0ExAAgAAAEAAQD9vEubvDy9gQoRYqbV7ArhiGD99%2bC%2f%2f%2f1toYkMahbB4pKGXsyPwCeGbVhlACLMtiPEoqRHGxkeJfpZlkcHPHYQijGibhMgdx03rXWMDvkLCCvgx%2fdlCO1yYDbI8rTpNKjReJrhbt1wI1iN46dFVaYAW0ET4NcJrn6SBb%2f8MrPaK2PP%2fs4tHyWUGggJ8Z0YSpjzZKTnYeD%2forrU%2bhDw2PMs3ttDY%2f5clIvdZHSJ8%2ftPq%2b6szY4%2bvx1VBH7LgC78v3XJzgV8vVozG%2btunsoUHd8YZOoXz2TcaIagAqjFPljp6KuxD67KuCr4sl1tLvBksH7bi1pWDa3GryxEAZUmlxPB&c=310&c=2&c=2&c=2&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:4084
      • C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsClient.exe" "RunRole" "26567781-aa17-4bb1-a3e1-17675a8f346d" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2192
      • C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsClient.exe" "RunRole" "1de91dc6-9714-4884-808e-71a691c8f8fb" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4456

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5959a0.rbs

          • Path C:\Config.Msi\e5959a0.rbs
          • Size 214KB
          • SHA256 1dad23692aec18546b9ab083ddae75cc5762df90de51e97a77908f78041d9767
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\app.config
          • Size 1KB
          • SHA256 b3369f06d13bca8a10e0870cabd470c48734cd10604ff8a77eb3de17a608f6c4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2a44520c741a996c)\system.config
          • Size 972B
          • SHA256 3624683ee2f4feb0c7c5eba539d2493e8adc95ce07004597bbabfbcb5572ff5a
          • MD5 SHA1 SHA512 TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI12D3.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB41.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB41.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\2a44520c741a996c\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 7c1e3a9694b83836a7b8ae6c08278fc87c4b725fdd1d990a9544f0587d6702f9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5F5D.tmp

          • Path C:\Windows\Installer\MSI5F5D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a44520c741a996c)\user.config
          • Size 520B
          • SHA256 ff62a506e24d80a4d298eb3d7b76e947b085a5f0fde2ef272b9f307dc7e9ea4a
          • MD5 SHA1 SHA512 TLSH

          woyfrbwm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a44520c741a996c)\woyfrbwm.newcfg
          • Size 879B
          • SHA256 32cdba1a0622b4efead2eb8a6822504caea9a6e97dfedd3c22a16cb62fea9447
          • MD5 SHA1 SHA512 TLSH

          ypvds0jh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2a44520c741a996c)\ypvds0jh.newcfg
          • Size 683B
          • SHA256 fc854682c5b7b28cf3dce5a4cdae489315134b35cafc53c96bc4361c75b6d696
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 e2fe14db57816af79175e2f592d60ace8bef0f1883f4a31743425a017a324c90
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {15c69b13-f03e-4a54-a93c-1e40aee48ffb}_OnDiskSnapshotProp

          • Path \??\Volume{833668ed-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{15c69b13-f03e-4a54-a93c-1e40aee48ffb}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 2ce6b88d237e08d82d65823f35aa560ac524c5d64da9d0403e0cd5ad2df4c868
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1560-228-0x0000013BA0900000-0x0000013BA12A4000-memory.dmp

          memory/2192-223-0x000000001B780000-0x000000001B7EC000-memory.dmp

          memory/2192-227-0x000000001C150000-0x000000001C2D8000-memory.dmp

          memory/2192-224-0x000000001BBC0000-0x000000001BC54000-memory.dmp

          memory/2192-225-0x000000001BE10000-0x000000001BFC0000-memory.dmp

          memory/2192-222-0x0000000000B00000-0x0000000000BAC000-memory.dmp

          memory/2192-226-0x0000000002BE0000-0x0000000002BFA000-memory.dmp

          memory/2304-9-0x00000000063C0000-0x000000000697A000-memory.dmp

          memory/2304-11-0x0000000074380000-0x0000000074B3C000-memory.dmp

          memory/2304-8-0x0000000074380000-0x0000000074B3C000-memory.dmp

          memory/2304-4-0x0000000005B90000-0x0000000005C24000-memory.dmp

          memory/2304-5-0x0000000074380000-0x0000000074B3C000-memory.dmp

          memory/2304-6-0x0000000005C20000-0x0000000005C48000-memory.dmp

          memory/2304-0-0x0000000074392000-0x0000000074393000-memory.dmp

          memory/2304-7-0x0000000005C50000-0x0000000005E00000-memory.dmp

          memory/2304-3-0x0000000074380000-0x0000000074B3C000-memory.dmp

          memory/2304-2-0x0000000001DF0000-0x0000000001DFC000-memory.dmp

          memory/2304-1-0x00000000019D0000-0x00000000019D8000-memory.dmp

          memory/2740-76-0x0000000005E80000-0x0000000005EA8000-memory.dmp

          memory/4084-199-0x0000000004B90000-0x0000000004BFC000-memory.dmp

          memory/4084-200-0x0000000004CA0000-0x0000000004D32000-memory.dmp

          memory/4084-202-0x0000000004B20000-0x0000000004B61000-memory.dmp

          memory/4084-204-0x0000000004E90000-0x0000000004F66000-memory.dmp

          memory/4084-180-0x0000000004AD0000-0x0000000004B20000-memory.dmp

          memory/4084-166-0x0000000004920000-0x0000000004AD0000-memory.dmp

          memory/4084-162-0x0000000004660000-0x00000000046F4000-memory.dmp

          memory/4084-156-0x00000000045A0000-0x00000000045BA000-memory.dmp

          memory/5272-46-0x0000000005AA0000-0x0000000005C50000-memory.dmp

          memory/5272-42-0x0000000005850000-0x00000000058E4000-memory.dmp

          memory/5272-38-0x00000000057A0000-0x00000000057AC000-memory.dmp

          memory/5272-34-0x0000000005770000-0x000000000579E000-memory.dmp