Analysis

  • max time kernel
    148s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 15:21

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260625-srkrfscy4w
  • SHA256 d5a6b388529cc83ded79c8d87c839bf9d8decdea68f27c301c9c502c42643ee5
  • 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.

  • 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 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 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:5656
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\ee03ea05ec3af086\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:1852
  • 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:5900
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0EEF33F514C937E0B39CB5E033B3A064 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6564
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672265 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6732
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5FDF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672750 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5192
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB757.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240695140 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4680
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3620
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EEF344E8A012E073B0C75ACFED3EFE0D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:7044
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B0A976DD6350B7B9F22E1E12254225E6 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6400
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1820
    • C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-brmagu-relay.screenconnect.com&p=443&s=52153699-a90e-4e00-b8fc-40c1456b3200&k=BgIAAACkAABSU0ExAAgAAAEAAQBhq9C8Q7%2fKNg84GJKs1nuBIS%2bRWrvs4xNuq60%2fTyY7Vk04DZQ7JcCO8XcfcLDdyZEUlgN6Z3yALyAJOH6aJeIgHyG8VN5o%2bNvoyeR%2bUUoa41oe1OzrXZIM8AdEdUbIMMkDAO6EfXpW37P1mrzSLso8c%2fZHkMeG1krN5hDusAp61AcKBcZ2ZMwNh01AVG9W9q4X9xbB9Uv9Yo7CEPkbceyIBuGH7i0pJilYRE4GVbrJJIV7tq%2bJQoYITu9gEhZLx7DNyni9naR7hwUgwELK%2frOnBsYpzcS9NTQSSCUJXwjrlnhsC8iCbT3DxNPytEiqJJ5%2fySbduh8cJQO9f8b0Um22"
      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:5948
      • C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe" "RunRole" "c9e435d3-cfe1-4e21-baf9-0ae13b92c363" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4728
      • C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe" "RunRole" "930ead24-de80-45b9-80e7-efaa01ece988" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1976

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58ebc3.rbs

          • Path C:\Config.Msi\e58ebc3.rbs
          • Size 214KB
          • SHA256 0bc093c016c3843cb124a154c2eca8bd914c2490bc3a5fdf2741fb500abcae6b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ee03ea05ec3af086)\system.config
          • Size 962B
          • SHA256 b35bbb636d472f0c283fddd3eeddc3dd89e3c5cf2d95e23cbe82f0e320d0ebc8
          • MD5 SHA1 SHA512 TLSH

          MSI5D7D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D7D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5FDF.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5FDF.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\ee03ea05ec3af086\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 cb3e71c9e3c196e133c1826248d821b22d4b61e43ee70a1678402c0f148f154a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEFBB.tmp

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

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ee03ea05ec3af086)\user.config
          • Size 520B
          • SHA256 b07c5b3b4f3d98ad8f6b05bbd05d02ad387ed554289d042243c790d9a567f539
          • MD5 SHA1 SHA512 TLSH

          vmc523ke.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ee03ea05ec3af086)\vmc523ke.newcfg
          • Size 683B
          • SHA256 e680e338a8a39dc3ef0124e065253300c21a8c448701414cdeff2da8358a4920
          • MD5 SHA1 SHA512 TLSH

          vyde154u.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ee03ea05ec3af086)\vyde154u.newcfg
          • Size 882B
          • SHA256 5b8bbc31c8434345cbadb8daa27454a1fe553fecc9bb0c00aa4094829066c61b
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 d2b87e942d18b417e2187066471bc73325bab3d5423ffa722f4302682d3b4d5f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8b28f444-6ddb-4b43-9753-bdd3f86ab243}_OnDiskSnapshotProp

          • Path \??\Volume{4ba3fe8d-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8b28f444-6ddb-4b43-9753-bdd3f86ab243}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 5eb29a0a5d32afb5aec5f36d6e59f95418375a41e5dcabdfea08c73f22e29549
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4728-225-0x000000001BA60000-0x000000001BC10000-memory.dmp

          memory/4728-224-0x000000001B710000-0x000000001B7A4000-memory.dmp

          memory/4728-222-0x000000001B300000-0x000000001B36C000-memory.dmp

          memory/4728-221-0x0000000000680000-0x000000000072C000-memory.dmp

          memory/4728-227-0x000000001BC10000-0x000000001BD98000-memory.dmp

          memory/4728-226-0x0000000002870000-0x000000000288A000-memory.dmp

          memory/5192-77-0x0000000005ED0000-0x0000000005EF8000-memory.dmp

          memory/5656-10-0x0000000074EF0000-0x00000000756AC000-memory.dmp

          memory/5656-5-0x0000000005C50000-0x0000000005E00000-memory.dmp

          memory/5656-8-0x0000000074EF0000-0x00000000756AC000-memory.dmp

          memory/5656-0-0x0000000074F02000-0x0000000074F03000-memory.dmp

          memory/5656-13-0x0000000074EF0000-0x00000000756AC000-memory.dmp

          memory/5656-11-0x0000000074EF0000-0x00000000756AC000-memory.dmp

          memory/5656-7-0x00000000063C0000-0x000000000697A000-memory.dmp

          memory/5656-1-0x0000000003520000-0x0000000003528000-memory.dmp

          memory/5656-2-0x0000000003650000-0x000000000365C000-memory.dmp

          memory/5656-3-0x0000000005B70000-0x0000000005C04000-memory.dmp

          memory/5656-6-0x0000000074EF0000-0x00000000756AC000-memory.dmp

          memory/5656-4-0x00000000036E0000-0x0000000003708000-memory.dmp

          memory/5948-203-0x0000000004360000-0x0000000004436000-memory.dmp

          memory/5948-201-0x0000000003DC0000-0x0000000003E01000-memory.dmp

          memory/5948-199-0x0000000004170000-0x0000000004202000-memory.dmp

          memory/5948-162-0x0000000003CD0000-0x0000000003D64000-memory.dmp

          memory/5948-198-0x0000000003E30000-0x0000000003E9C000-memory.dmp

          memory/5948-156-0x00000000016F0000-0x000000000170A000-memory.dmp

          memory/5948-166-0x0000000003F20000-0x00000000040D0000-memory.dmp

          memory/5948-179-0x0000000003D70000-0x0000000003DC0000-memory.dmp

          memory/6732-35-0x0000000003680000-0x00000000036AE000-memory.dmp

          memory/6732-47-0x0000000005AF0000-0x0000000005CA0000-memory.dmp

          memory/6732-43-0x00000000058A0000-0x0000000005934000-memory.dmp

          memory/6732-39-0x00000000036C0000-0x00000000036CC000-memory.dmp