Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/07/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260728-wt21asel4x
  • SHA256 35b885cba40c761fe2b2038a730806327f5d866c12fe2b640ca873a8893c37fa
  • 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 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:5828
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\ff025aed6725ff37\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:5012
  • 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:3212
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DCE3DF5053CD26B0EC738D0F644A5F15 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2932
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726390 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4944
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI339A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726984 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1108
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2C82.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240790750 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2860
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:796
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6DF27051854FAD72E5A41C01A8FCC212
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3540
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F9C4EC28C68B609D92D79B1797C5666E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4688
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4664
    • C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-r07xxv-relay.screenconnect.com&p=443&s=da6e07b4-0f3e-48bb-a6b9-8ea1c11017df&k=BgIAAACkAABSU0ExAAgAAAEAAQAxmGlZOD7fTBxsJXFzZImd8X7K4yXL0RFcS1w%2f2%2b0RXeO1in5cLJreasqx4btCmvnDmyFwE%2fJAjj4zftUZ3hT6oWuzC1iGkWkpAs1eltKSWLrP%2fUOuiPqNqL8u6Fy%2bMapGDepZKIHq9S4lC%2bynSow%2bdso6gkfSxeuI9u%2btP28KJb%2bHdvMFAXO5cb5CVneq3UXfLMgIWspw%2bySpI%2b6WZgMUzP%2bZiYpTX%2fpa7QZenrOpv%2bY77yFuniaioW4amIgqQGN3r4tCnUyGLzyo0RwxM6xMQgGRvCZIRLcxBPJ3Y14HfMqHpiEg5NEltsATkoDRZnj4qfPDuDaQlMfesJSlHTfc"
      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:3312
      • C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe" "RunRole" "5ea43fa3-69b1-4837-af93-3a560925a533" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5100
      • C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe" "RunRole" "ff6301ed-8b1c-4205-99a2-1e450e7546b0" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3440

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a7d12.rbs

          • Path C:\Config.Msi\e5a7d12.rbs
          • Size 214KB
          • SHA256 205ea11fb96d80e968bc1ceb083320720c36421242f09c6fdadc3d545782db55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ff025aed6725ff37)\system.config
          • Size 972B
          • SHA256 fd3f6ab091a662b930cf931e608bbcf37f7d19178f5caf01dea26a4c18a2e601
          • MD5 SHA1 SHA512 TLSH

          MSI3109.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3109.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI339A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI339A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\ff025aed6725ff37\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 4fbeeea4575530a97144e61f34c79ab920300c516387290a8336b5066c47d992
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI83E8.tmp

          • Path C:\Windows\Installer\MSI83E8.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          lai1ms2n.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ff025aed6725ff37)\lai1ms2n.newcfg
          • Size 683B
          • SHA256 6b0b70c553c474b07a35a1e67b9969d273acf0de17ff5fbf97717f3fa9d843b3
          • MD5 SHA1 SHA512 TLSH

          n3nhooub.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ff025aed6725ff37)\n3nhooub.newcfg
          • Size 883B
          • SHA256 5ac5ffb655c45fd38fdc60bc8297413f79e8cc1bda02175d1d90117ac4ea41f7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ff025aed6725ff37)\user.config
          • Size 520B
          • SHA256 cdefb5ebf75180adb75530526af56f56b066ab702d8126096b8136e200f8c98c
          • MD5 SHA1 SHA512 TLSH

          memory/1108-77-0x0000000006070000-0x0000000006098000-memory.dmp

          memory/3212-178-0x0000028F07F60000-0x0000028F08904000-memory.dmp

          memory/3312-179-0x0000000003F10000-0x0000000003F60000-memory.dmp

          memory/3312-198-0x0000000003FD0000-0x000000000403C000-memory.dmp

          memory/3312-203-0x0000000004500000-0x00000000045D6000-memory.dmp

          memory/3312-161-0x0000000003DC0000-0x0000000003E54000-memory.dmp

          memory/3312-199-0x0000000004310000-0x00000000043A2000-memory.dmp

          memory/3312-165-0x00000000040C0000-0x0000000004270000-memory.dmp

          memory/3312-201-0x0000000003EC0000-0x0000000003F01000-memory.dmp

          memory/3312-155-0x00000000016C0000-0x00000000016DA000-memory.dmp

          memory/4944-35-0x0000000003970000-0x000000000399E000-memory.dmp

          memory/4944-47-0x0000000005D30000-0x0000000005EE0000-memory.dmp

          memory/4944-43-0x0000000005AE0000-0x0000000005B74000-memory.dmp

          memory/4944-39-0x00000000039A0000-0x00000000039AC000-memory.dmp

          memory/5100-225-0x000000001BB70000-0x000000001BD20000-memory.dmp

          memory/5100-224-0x000000001B920000-0x000000001B9B4000-memory.dmp

          memory/5100-223-0x000000001B530000-0x000000001B59C000-memory.dmp

          memory/5100-226-0x0000000002BA0000-0x0000000002BBA000-memory.dmp

          memory/5100-227-0x000000001BEB0000-0x000000001C038000-memory.dmp

          memory/5100-222-0x0000000000890000-0x000000000093E000-memory.dmp

          memory/5100-228-0x0000000002BC0000-0x0000000002C01000-memory.dmp

          memory/5828-0-0x0000000074D52000-0x0000000074D53000-memory.dmp

          memory/5828-3-0x0000000005610000-0x00000000056A4000-memory.dmp

          memory/5828-4-0x00000000056A0000-0x00000000056C8000-memory.dmp

          memory/5828-2-0x0000000003120000-0x000000000312C000-memory.dmp

          memory/5828-1-0x0000000001810000-0x0000000001818000-memory.dmp

          memory/5828-5-0x0000000005760000-0x0000000005910000-memory.dmp

          memory/5828-6-0x0000000074D40000-0x00000000754FC000-memory.dmp

          memory/5828-7-0x0000000005ED0000-0x000000000648A000-memory.dmp

          memory/5828-8-0x0000000074D40000-0x00000000754FC000-memory.dmp

          memory/5828-10-0x0000000074D40000-0x00000000754FC000-memory.dmp

          memory/5828-11-0x0000000074D40000-0x00000000754FC000-memory.dmp

          memory/5828-13-0x0000000074D40000-0x00000000754FC000-memory.dmp