Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 00:22

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260714-an5ncabs5n
  • SHA256 bb0534e81e012e527d058c0163ef9e00e4ee018eaca9c1b7f038a5c03b3c5e0a
  • 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.

  • 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 3 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 9 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 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.

  • 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 9 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 9 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:5024
  • 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:2808
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3A0B260482F40A5E1A8DD8DDC56B7E92 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2380
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729203 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4580
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4202.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730656 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4AEC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732968 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:248
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1520
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0DB6274609F37D0CF2767CF132D24E36
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2412
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AF480EE64DEC05ACF444011AE13506CA E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5540
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2188
    • C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ga393o-relay.screenconnect.com&p=443&s=758bef62-89a2-4322-8b61-d5ec81842967&k=BgIAAACkAABSU0ExAAgAAAEAAQBluOlLRe%2fyWGOqlnt0pPTzqyUxcx3TeUkSNeTyHSP7tRwkhwgtCngy9ySybiqVh0QGdTWEDfnX6UfCNKDfoi7QIjEEECUo5ucP8J11O7QawxBSygcOjxHZJVL4zGmTo5cZfwt%2bXkUpeAKFsW0OWFgI1c9ErSfFAqHNp2i86kDSiTraOgKqTOFA7IbllnIsXfu8g%2btOiIiYeeYioDGbmhLnQPkeb1Ahx0GWPFoCfXSCIEi3IDqrvydabFrJ5J00O5IuIm4bys%2fjQyIYh7%2bI%2fq5w5e7tR2zQHTsiDOIetKMMtgjBZw03BiKYPdVcqnxPQeyi0q5YwYVlZziZ1HD8FHHg&c=RATTT&c=&c=&c=&c=&c=&c=&c="
      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:5340
      • C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe" "RunRole" "a39874e2-35fa-405d-be59-e1ddbeb45883" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4992
      • C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe" "RunRole" "fec14818-1bc1-4225-9fbb-3f36d57f3a62" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4512

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a928.rbs

          • Path C:\Config.Msi\e59a928.rbs
          • Size 214KB
          • SHA256 8eb2f6562a629c70b130bc4a03dde82d4473b532b6e5b799e92ab1ec29c6a6fe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e2a6fd73e3f3be49)\system.config
          • Size 956B
          • SHA256 265379248acf92e718869eee20cefd5a426b251b0bba4a21c665a3267561683b
          • MD5 SHA1 SHA512 TLSH

          MSI3AEC.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3AEC.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4202.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4202.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB02D.tmp

          • Path C:\Windows\Installer\MSIB02D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59a927.msi

          • Path C:\Windows\Installer\e59a927.msi
          • Size 9.8MB
          • SHA256 bb0534e81e012e527d058c0163ef9e00e4ee018eaca9c1b7f038a5c03b3c5e0a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          rqq12mru.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e2a6fd73e3f3be49)\rqq12mru.newcfg
          • Size 884B
          • SHA256 2776b8f7d968eda850932b23776a44b910d6ebc43092c875ad7923fd3ffca397
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e2a6fd73e3f3be49)\user.config
          • Size 683B
          • SHA256 46d3e4eca86eda735399ac4c7bfd268e247165cf877287434b9236343cfbed35
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e2a6fd73e3f3be49)\user.config
          • Size 520B
          • SHA256 ad7ad5fc55c3684626c4f866a62209c8a34f510fe15e3df62713503650f4e3c5
          • MD5 SHA1 SHA512 TLSH

          {cdf2cff8-38b7-4cbe-9841-db580eaefdca}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{cdf2cff8-38b7-4cbe-9841-db580eaefdca}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 19134b5fe964221085084e43df5a5c0fdaacb91932a698eaacc87ca970f0687a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4580-33-0x00000000057D0000-0x0000000005980000-memory.dmp

          memory/4580-34-0x0000000005F40000-0x00000000064FA000-memory.dmp

          memory/4580-29-0x0000000005580000-0x0000000005614000-memory.dmp

          memory/4580-25-0x00000000054A0000-0x00000000054AC000-memory.dmp

          memory/4580-21-0x00000000054B0000-0x00000000054DE000-memory.dmp

          memory/4624-64-0x0000000005840000-0x0000000005868000-memory.dmp

          memory/4992-205-0x0000000000E70000-0x0000000000F1C000-memory.dmp

          memory/4992-211-0x000000001BAF0000-0x000000001BB31000-memory.dmp

          memory/4992-210-0x000000001C4D0000-0x000000001C658000-memory.dmp

          memory/4992-209-0x0000000003050000-0x000000000306A000-memory.dmp

          memory/4992-208-0x000000001C190000-0x000000001C340000-memory.dmp

          memory/4992-207-0x000000001BF40000-0x000000001BFD4000-memory.dmp

          memory/4992-206-0x000000001BB30000-0x000000001BB9C000-memory.dmp

          memory/5340-182-0x00000000045C0000-0x0000000004652000-memory.dmp

          memory/5340-147-0x0000000003FA0000-0x0000000004034000-memory.dmp

          memory/5340-151-0x0000000004290000-0x0000000004440000-memory.dmp

          memory/5340-164-0x00000000041E0000-0x0000000004230000-memory.dmp

          memory/5340-184-0x0000000004230000-0x0000000004271000-memory.dmp

          memory/5340-181-0x00000000044B0000-0x000000000451C000-memory.dmp

          memory/5340-186-0x00000000047B0000-0x0000000004886000-memory.dmp

          memory/5340-141-0x0000000001970000-0x000000000198A000-memory.dmp