Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 00:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260805-aky2dsgl3t
  • SHA256 9a94f59267f6e22a193a765b1ec1eea811a9e74d2071d6b58bad5acf8db3fef2
  • 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.

  • 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:4648
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\f245171dfe3fb0d4\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:5388
  • 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:5964
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F684A5978175A8B313C8956E36AE1C09 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732968 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4964
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4DAA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733640 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI531A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735046 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5056
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3004
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 05FB7BC5D3BBE4964624F4C40EC0508C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2444
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A344462C31319899F60088D03FBC8085 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1596
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1136
    • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-uzq6f1-relay.screenconnect.com&p=443&s=501a24bb-e7de-4f6a-ae0e-0105bf9ab6b2&k=BgIAAACkAABSU0ExAAgAAAEAAQDxwsP8LG3YWuzF%2b5RYuPA9jApFgvmTcmTttKXchu2E4kOiANKqQJJH2Uj3aVipibRzUVle9Vnn2ubWz5d79TrRrmtsQZvjZZhvvAzb5IKX2zoX6vRBtNj9q7KGkcKnudpLj1meqIzw1Xkb9AofCtkPMhXQJSywmV5%2bbNiKU1Kb5uSdys1MCYPkqxUL%2bhi1ZFRjnjypxNdr9SgzFV%2bhfTXHHiYv7GPOeibgg7BFycCZiuJqQd0BNDCvVvIAhLLjdu8hUNLMpKyQcxNmynt2%2ftLgSolz3DrH67VA4lyMalWqW3Qw1TCSExOGSdY1zRNqjKOupMJdcvg5MjdE29d5udiW"
      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:2684
      • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe" "RunRole" "d793c4b8-4eb5-4bbf-9e2b-44e8d03d66bb" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5548
      • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe" "RunRole" "9dc41a2f-30b1-48a9-8f66-14022e82a532" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4028

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59ad8d.rbs

          • Path C:\Config.Msi\e59ad8d.rbs
          • Size 214KB
          • SHA256 3248448b5711b8185955597f7be5725aeb1736016cc613089ab35d84c39c7340
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\system.config
          • Size 954B
          • SHA256 54a74f5db8ede340bd45cdf5d6bb0bb8524799027faa894ccfc880b1a076fb21
          • MD5 SHA1 SHA512 TLSH

          MSI4AAB.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4AAB.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DAA.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4DAA.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\f245171dfe3fb0d4\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 3e67392cee3ec029660c008950ee7b50f764d3b2a2bfdf35634ed7d247f16119
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB30B.tmp

          • Path C:\Windows\Installer\MSIB30B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3fpajcy1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\3fpajcy1.newcfg
          • Size 881B
          • SHA256 22fd085e232b01d25b8ce8d64ced5ae6f3f0ee78795f29fbd16bb2ab392dc2c6
          • MD5 SHA1 SHA512 TLSH

          oevvqzt1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\oevvqzt1.newcfg
          • Size 683B
          • SHA256 4ee87375ff1cbab60fc366393f4679df9eeab84242bc276541a67b739c6b5c02
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\user.config
          • Size 520B
          • SHA256 72fc0a47167b3617bf9d697533e18e677b05fb5da089b7c7214ad64322757f13
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 0259c91aa88824031bc06405b02ae13eb6ed96d6c9785dc5f3e0539a3d75c81f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {90f005b9-b449-473a-a6fa-b2ff6d5de28b}_OnDiskSnapshotProp

          • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{90f005b9-b449-473a-a6fa-b2ff6d5de28b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 2924156eba03a7841a1dae0479f87a46ac6e653586d630b522cfe7c74a45bc9b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2684-153-0x0000000004660000-0x000000000467A000-memory.dmp

          memory/2684-194-0x0000000004C00000-0x0000000004C6C000-memory.dmp

          memory/2684-159-0x0000000004790000-0x0000000004824000-memory.dmp

          memory/2684-163-0x00000000049E0000-0x0000000004B90000-memory.dmp

          memory/2684-198-0x0000000004B90000-0x0000000004BD1000-memory.dmp

          memory/2684-165-0x0000000004980000-0x00000000049D0000-memory.dmp

          memory/2684-200-0x0000000004F00000-0x0000000004FD6000-memory.dmp

          memory/2684-196-0x0000000004D10000-0x0000000004DA2000-memory.dmp

          memory/4028-227-0x000000001D1B0000-0x000000001D2A0000-memory.dmp

          memory/4648-1-0x0000000001F80000-0x0000000001F88000-memory.dmp

          memory/4648-12-0x0000000074710000-0x0000000074ECC000-memory.dmp

          memory/4648-3-0x00000000038A0000-0x0000000003934000-memory.dmp

          memory/4648-0-0x0000000074722000-0x0000000074723000-memory.dmp

          memory/4648-2-0x0000000001FA0000-0x0000000001FAC000-memory.dmp

          memory/4648-10-0x0000000074710000-0x0000000074ECC000-memory.dmp

          memory/4648-4-0x00000000036F0000-0x0000000003718000-memory.dmp

          memory/4648-8-0x0000000074710000-0x0000000074ECC000-memory.dmp

          memory/4648-7-0x0000000006510000-0x0000000006ACA000-memory.dmp

          memory/4648-6-0x0000000074710000-0x0000000074ECC000-memory.dmp

          memory/4648-5-0x0000000005DA0000-0x0000000005F50000-memory.dmp

          memory/4964-38-0x0000000005AC0000-0x0000000005ACC000-memory.dmp

          memory/4964-34-0x0000000005A90000-0x0000000005ABE000-memory.dmp

          memory/4964-42-0x0000000005B70000-0x0000000005C04000-memory.dmp

          memory/4964-46-0x0000000005DC0000-0x0000000005F70000-memory.dmp

          memory/5548-218-0x0000000000CE0000-0x0000000000D8E000-memory.dmp

          memory/5548-219-0x00000000030B0000-0x000000000311C000-memory.dmp

          memory/5548-220-0x000000001BE30000-0x000000001BEC4000-memory.dmp

          memory/5548-222-0x000000001C080000-0x000000001C230000-memory.dmp

          memory/5548-223-0x0000000002EB0000-0x0000000002ECA000-memory.dmp

          memory/5548-224-0x000000001C3C0000-0x000000001C548000-memory.dmp

          memory/5624-76-0x0000000003F70000-0x0000000003F98000-memory.dmp