Analysis

  • max time kernel
    148s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/08/2026, 12:17

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260819-pf4teatekb
  • SHA256 28663df54af319daba5ce976f545fb1ac65b74387c0f5d61d5ce046afbe411fb
  • 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 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 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:1092
  • 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:1536
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 95E3D37708C187B3440FD9AA6CCC2B83 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2596
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5A9A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240737281 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3460
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9DDE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240754375 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2636
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2728
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FBAC8A7260BE62028ECF64BFD5648BAA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1244
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 76CC3447D4722F48382502DA84D44C2A E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4100
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2892
    • C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jixut8-relay.screenconnect.com&p=443&s=7265f1c4-fea6-48cb-9d38-4f92bdfa4ba5&k=BgIAAACkAABSU0ExAAgAAAEAAQCp2eQPNbCXxRbOVJjA82a8JTLUXOhieF3khFHwjdXPFqdntHYvFRTaZS6wQzfqeZIfZcTS90NyDHoLiXs6R9zkccGX5PiIcIZy8u5XIwJsQrg4Wj733mvSEoaSQMaLnEpZwuTHlDrUjsgM7x6X09SB6ciDEOB4CRWv%2fZsqjyD%2fB28fgAKjOlJ24vCdL%2fkidg%2bYtZG88QPOo9SSM5K5V1%2bccu8ZPyaNcsyCkl88RyLVw3p%2fDugmZMA14N7uBzrji5q2DOP0THXU8SXSGdZv37J68kPgEE8qmZXQAT92lo0vP92ZGFz2WWJYx2bN9dVlVs64lbKJuY2csR4lKJBfB2C1"
      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:4224
      • C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe" "RunRole" "4e287f47-9f8e-4cca-8403-f7ec5f03ddc3" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4264
      • C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe" "RunRole" "b50608f0-efa7-49f4-99e6-ac98d002ee73" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4368

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59ee8d.rbs

          • Path C:\Config.Msi\e59ee8d.rbs
          • Size 214KB
          • SHA256 21fb6ead03755da9da7657f2df70e69b1d864b96087e8d28394fcaeac2548a08
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7662db5817a200ec)\system.config
          • Size 956B
          • SHA256 aac15cc73cab74b460f20879e652a232d65b085e8f54754e04211ff058b101b3
          • MD5 SHA1 SHA512 TLSH

          MSI53C3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI53C3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5A9A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5A9A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF525.tmp

          • Path C:\Windows\Installer\MSIF525.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59ee8c.msi

          • Path C:\Windows\Installer\e59ee8c.msi
          • Size 9.8MB
          • SHA256 28663df54af319daba5ce976f545fb1ac65b74387c0f5d61d5ce046afbe411fb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4cg0ojrr.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7662db5817a200ec)\4cg0ojrr.newcfg
          • Size 683B
          • SHA256 3961e62f70e7d31036d5b968ec065bc440d0a5009e3ebbc9dd752eb1dbe0bce5
          • MD5 SHA1 SHA512 TLSH

          qm31u1oa.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7662db5817a200ec)\qm31u1oa.newcfg
          • Size 884B
          • SHA256 77abb3d3c89d25076412e3f60fa00cfd6fc74765249b4b899790bc76986548f3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7662db5817a200ec)\user.config
          • Size 520B
          • SHA256 b7310a105ae970ef3dd85e73756159fae8f93aa6c65311c0891aa33af5266c1b
          • MD5 SHA1 SHA512 TLSH

          {d29fec7d-5abb-4ff0-ba90-6ddc0fdfa26f}_OnDiskSnapshotProp

          • Path \??\Volume{c4ee2a5b-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{d29fec7d-5abb-4ff0-ba90-6ddc0fdfa26f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 607d36d4c80105cf22683862cce622786884f7d0447061f0c134a54264b6d21d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2596-21-0x00000000058D0000-0x00000000058FE000-memory.dmp

          memory/2596-29-0x0000000005A20000-0x0000000005AB4000-memory.dmp

          memory/2596-25-0x0000000005910000-0x000000000591C000-memory.dmp

          memory/2596-33-0x0000000005C70000-0x0000000005E20000-memory.dmp

          memory/2596-34-0x00000000063E0000-0x000000000699A000-memory.dmp

          memory/3460-64-0x0000000005630000-0x0000000005658000-memory.dmp

          memory/4224-141-0x0000000001DC0000-0x0000000001DDA000-memory.dmp

          memory/4224-147-0x0000000004460000-0x00000000044F4000-memory.dmp

          memory/4224-186-0x00000000045A0000-0x00000000045E1000-memory.dmp

          memory/4224-164-0x0000000004550000-0x00000000045A0000-memory.dmp

          memory/4224-183-0x0000000004610000-0x000000000467C000-memory.dmp

          memory/4224-188-0x0000000004AF0000-0x0000000004BC6000-memory.dmp

          memory/4224-151-0x00000000046B0000-0x0000000004860000-memory.dmp

          memory/4224-184-0x0000000004900000-0x0000000004992000-memory.dmp

          memory/4264-207-0x0000000000D80000-0x0000000000E2E000-memory.dmp

          memory/4264-209-0x000000001BAF0000-0x000000001BB84000-memory.dmp

          memory/4264-210-0x000000001C0A0000-0x000000001C250000-memory.dmp

          memory/4264-211-0x0000000002F50000-0x0000000002F6A000-memory.dmp

          memory/4264-212-0x000000001C3E0000-0x000000001C568000-memory.dmp

          memory/4264-208-0x0000000002F90000-0x0000000002FFC000-memory.dmp