Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 12:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260820-pfs2xazthy
  • SHA256 10de7dbb4b67064d3dde4e2290916ae4cd7bdddb4b32f264921482616e273f0f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 12 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 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 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:5388
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\ecfe7b8019204664\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:2244
  • 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:2516
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DF0F87B97D4B4206281E306348393794 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738843 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3144
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI65C6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739843 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:252
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5EFC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240803593 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4484
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5964
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F353BBA2B4A0105BCB3ED8A86A2D14BB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4588
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C38F4589CF6FF3D17981B889870D3F92 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4528
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2812
    • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hpeync-relay.screenconnect.com&p=443&s=504849cd-b664-43c2-897d-d594c7bba818&k=BgIAAACkAABSU0ExAAgAAAEAAQAVRSgj8qh9GEQMEdpXYB3ez0P27BcECuYqkgr2ma7AG%2b4Y0Fshj1UcelSmHfbfKD0PE4qAvV%2fOuTju2VlBb7gx4KFTAFbBSXrjMzdu22WsTn7a5jLCAPBWstwull09MpjuHLcPwUakbqxLGAAAYB1r38j%2bLDkC%2ffC3rHeIG0SDXLouIsUrowhq2jrT0qTMssX5ajAL6WEtAxmmmF4Zq1pB00uhB3nZz26XDqVRJyekC7B0jo3NfXjPzcxGUun%2bRIrUYmZhsZdpMIT4yAAnkdW9frTGJkVabXqnvzh2zywAREilooaGTMl3JtQYfRlj0QSqnzpYbF9Ep3KE3yCSlMLc&c=PAPhnt&c=&c=&c=&c=&c=&c=&c="
      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:5224
      • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe" "RunRole" "7b544b2c-6832-4c54-9966-746c0477d5c0" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4192
      • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe" "RunRole" "f446c70a-fe42-4eec-b1bf-b5d285697d77" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5792

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5abd18.rbs

          • Path C:\Config.Msi\e5abd18.rbs
          • Size 214KB
          • SHA256 a78063ce09a347cf2994f038435da98fab394e64afb824a80386ca31a86c9851
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\system.config
          • Size 954B
          • SHA256 863adb0d672294ea9d02719e82c04abbcb34f514ac0d5035d708abb88bab6d79
          • MD5 SHA1 SHA512 TLSH

          MSI6112.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6112.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65C6.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65C6.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\ecfe7b8019204664\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 3f6d56a7f35fe8a669ba26019b2333457354f968094cf00acff93376d27672b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC3B0.tmp

          • Path C:\Windows\Installer\MSIC3B0.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4firiwuo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\4firiwuo.newcfg
          • Size 884B
          • SHA256 df45e79cb255ee353535cff85ec600a4b7f32bfc25a94c6951c0caf81aed0f12
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\user.config
          • Size 683B
          • SHA256 9ac7330d2f23547d5c92aae243fd03160d86ca33ecef858097d067216c0314d9
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\user.config
          • Size 520B
          • SHA256 e278b97113dffda01e1dbbc30cb700e93b66c31e1542304c894edf2ed8b40f51
          • MD5 SHA1 SHA512 TLSH

          yjolxzhc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\yjolxzhc.newcfg
          • Size 884B
          • SHA256 97bcc28912c76ae826ec5e3960f9efe8fc39c164546f224e1b8c84322a474ada
          • MD5 SHA1 SHA512 TLSH

          {30a6722e-cd0e-4a18-ac6e-b14e55ada782}_OnDiskSnapshotProp

          • Path \??\Volume{cb1876cb-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{30a6722e-cd0e-4a18-ac6e-b14e55ada782}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 9b232f37ff133b8b7b875076dcefd3e439aa00fd49a61368f49a3f7fd558ee0b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/252-77-0x0000000005F10000-0x0000000005F38000-memory.dmp

          memory/2516-225-0x000001E6E9FA0000-0x000001E6E9FE0000-memory.dmp

          memory/3144-39-0x0000000003540000-0x000000000354C000-memory.dmp

          memory/3144-47-0x00000000058D0000-0x0000000005A80000-memory.dmp

          memory/3144-43-0x0000000003600000-0x0000000003694000-memory.dmp

          memory/3144-35-0x0000000003500000-0x000000000352E000-memory.dmp

          memory/4192-218-0x0000000000A70000-0x0000000000B1E000-memory.dmp

          memory/4192-219-0x0000000002D10000-0x0000000002D7C000-memory.dmp

          memory/4192-224-0x000000001C180000-0x000000001C308000-memory.dmp

          memory/4192-221-0x000000001BBF0000-0x000000001BC84000-memory.dmp

          memory/4192-223-0x0000000001630000-0x000000000164A000-memory.dmp

          memory/4192-222-0x000000001BE40000-0x000000001BFF0000-memory.dmp

          memory/5224-195-0x0000000004490000-0x00000000044FC000-memory.dmp

          memory/5224-155-0x00000000041D0000-0x00000000041EA000-memory.dmp

          memory/5224-196-0x0000000004780000-0x0000000004812000-memory.dmp

          memory/5224-198-0x0000000004420000-0x0000000004461000-memory.dmp

          memory/5224-200-0x0000000004970000-0x0000000004A46000-memory.dmp

          memory/5224-178-0x00000000043D0000-0x0000000004420000-memory.dmp

          memory/5224-165-0x0000000004530000-0x00000000046E0000-memory.dmp

          memory/5224-161-0x0000000004290000-0x0000000004324000-memory.dmp

          memory/5388-0-0x00000000744C2000-0x00000000744C3000-memory.dmp

          memory/5388-2-0x0000000003B50000-0x0000000003B5C000-memory.dmp

          memory/5388-1-0x0000000003B30000-0x0000000003B38000-memory.dmp

          memory/5388-3-0x0000000006060000-0x00000000060F4000-memory.dmp

          memory/5388-4-0x00000000744B0000-0x0000000074C6C000-memory.dmp

          memory/5388-5-0x0000000003BE0000-0x0000000003C08000-memory.dmp

          memory/5388-6-0x00000000061A0000-0x0000000006350000-memory.dmp

          memory/5388-8-0x0000000006910000-0x0000000006ECA000-memory.dmp

          memory/5388-7-0x00000000744B0000-0x0000000074C6C000-memory.dmp

          memory/5388-10-0x00000000744B0000-0x0000000074C6C000-memory.dmp

          memory/5388-11-0x00000000744B0000-0x0000000074C6C000-memory.dmp

          memory/5388-13-0x00000000744B0000-0x0000000074C6C000-memory.dmp