Analysis

  • max time kernel
    298s
  • max time network
    255s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 13:35

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260831-qv2s2agg79
  • SHA256 72265f63179181b63a71516d4eb68bd2a463b9dd75741307ba637ca26865c84e
  • 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 12 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:2840
  • 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:5892
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 214C4C9F8DC0160252C84EC9224E4F92 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733687 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2392
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI53B5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735187 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2676
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5A3E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736906 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1600
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4484
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2A19EE3342CF0368D8595B61B55442CF
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2944
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0A693AEDCEA734A952B44E885D2386F0 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4276
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5544
    • C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-e4nogh-relay.screenconnect.com&p=443&s=144c3466-9e65-4a41-9626-ee98570924c8&k=BgIAAACkAABSU0ExAAgAAAEAAQDJb4UxGns%2bDdWnv50eJpt9%2fhLA9Ly5I%2bD%2fRBJ5sdUbbgEzsWxp4HCNcwq4eQxBAlj4r%2bHupxSkD2%2blWaV6i8AxUeQwImQlZLdg4F6vsEKofeFKM6UqsN8O%2fmZZKld015wvsgv0LVhniSVplMOdib2SEnt8JwWQ8Gc1teS8gMPFX9Zn%2b8NE%2bePw9nmVFQFP5JDHwwtfVs%2fsKRzFktsLBzy7noyXVCTtsORIPxbzyKqnmDyuFFiK1xskSvqWE0t8rLEP5gYmEqNrQEiaEyFz7mSOfNGaW4mI6WlsI6UB%2byRfmX82TqzkEERwTA%2fONz968lBCBY2ANC0EIHYgkWCJP%2fDO"
      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:5912
      • C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe" "RunRole" "36e7eae6-4694-4374-b3a8-953ce3d03117" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3284
      • C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe" "RunRole" "ebefd1ac-536b-4b61-835d-b273c0bd6934" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4616

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e599f73.rbs

          • Path C:\Config.Msi\e599f73.rbs
          • Size 214KB
          • SHA256 6e17b2d620e4381be4cb629a17551fe05e4833ad2fed180425857e4e4bfa8e5c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (22cbab73b9a716a9)\system.config
          • Size 970B
          • SHA256 796fe985f311ba9a7453e295bfddf7481362eda82c02e5716dd046c10a01c75d
          • MD5 SHA1 SHA512 TLSH

          MSI4BC5.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4BC5.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53B5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53B5.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA484.tmp

          • Path C:\Windows\Installer\MSIA484.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e599f72.msi

          • Path C:\Windows\Installer\e599f72.msi
          • Size 9.8MB
          • SHA256 72265f63179181b63a71516d4eb68bd2a463b9dd75741307ba637ca26865c84e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          r1jtf4nq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (22cbab73b9a716a9)\r1jtf4nq.newcfg
          • Size 882B
          • SHA256 3231d4455144d9a8d625166b6537576e3d0cbd7df42d8ebd8c1622d5c100b9b4
          • MD5 SHA1 SHA512 TLSH

          s5kbl1rk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (22cbab73b9a716a9)\s5kbl1rk.newcfg
          • Size 882B
          • SHA256 13a5c390a430d3b5be0f5b30a5b4d4c99424b134bdf28abe715029a0085c3b37
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (22cbab73b9a716a9)\user.config
          • Size 520B
          • SHA256 2b606a682d63fd6035a84b0d67dec777e66a39caf2fbcd3b34563ab8a1b52e63
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (22cbab73b9a716a9)\user.config
          • Size 683B
          • SHA256 3a5d06b290fb64e282e7aa73e89a1e7795a2fa92f00a4d7602937ef75d1dcb02
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 dad7ee8a53e04774615ca339ea27b7d585d8bea6f957bf994933d277c8a52f1c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {12e1c01f-6e71-4b1e-8c5c-49a0e8dec08d}_OnDiskSnapshotProp

          • Path \??\Volume{cb1876cb-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{12e1c01f-6e71-4b1e-8c5c-49a0e8dec08d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 b59feaf7d0a8d73be68b02cbbde47c97604487f5c35291c119c894faeca4647c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2392-33-0x0000000006410000-0x00000000065C0000-memory.dmp

          memory/2392-29-0x0000000006170000-0x0000000006204000-memory.dmp

          memory/2392-21-0x0000000006080000-0x00000000060AE000-memory.dmp

          memory/2392-34-0x0000000006B80000-0x000000000713A000-memory.dmp

          memory/2392-25-0x00000000060C0000-0x00000000060CC000-memory.dmp

          memory/2676-64-0x00000000060A0000-0x00000000060C8000-memory.dmp

          memory/3284-209-0x000000001C410000-0x000000001C598000-memory.dmp

          memory/3284-204-0x0000000000D70000-0x0000000000E1E000-memory.dmp

          memory/3284-208-0x0000000001690000-0x00000000016AA000-memory.dmp

          memory/3284-207-0x000000001C0D0000-0x000000001C280000-memory.dmp

          memory/3284-205-0x000000001BA80000-0x000000001BAEC000-memory.dmp

          memory/3284-206-0x000000001BE80000-0x000000001BF14000-memory.dmp

          memory/5892-211-0x00000216F0030000-0x00000216F0070000-memory.dmp

          memory/5912-184-0x00000000041F0000-0x0000000004231000-memory.dmp

          memory/5912-151-0x0000000004300000-0x00000000044B0000-memory.dmp

          memory/5912-181-0x0000000004260000-0x00000000042CC000-memory.dmp

          memory/5912-182-0x0000000004550000-0x00000000045E2000-memory.dmp

          memory/5912-186-0x0000000004740000-0x0000000004816000-memory.dmp

          memory/5912-164-0x00000000041A0000-0x00000000041F0000-memory.dmp

          memory/5912-141-0x0000000001930000-0x000000000194A000-memory.dmp

          memory/5912-147-0x0000000003FB0000-0x0000000004044000-memory.dmp