Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/05/2026, 18:45

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.4MB
  • Sample260504-xd26ssay2s
  • SHA256 36be2de78cc1ed4bcfeac2bdce2fb459ef436bc065f03d55205e6388228263c7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 3 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 17 IoCs
  • Drops file in Windows directory 13 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 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4172
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.1.24.9579\ae962e4a518f5d89\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
      PID:2020
  • 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 WriteProcessMemory
    PID:4516
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 222917A4E9381339C484F8B50AE42DCC C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5832
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240667078 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4256
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4B8C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240667531 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1608
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4FF2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240668703 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5988
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2080
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 869EA40337D9608BC31FD95C54C45C87
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3496
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5CB61D3C85C1B479FADE3ACA13A7EB81 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4228
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5792
    • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-woc1gx-relay.screenconnect.com&p=443&s=0a0e8940-c157-4718-98dc-9ad4afe2e387&k=BgIAAACkAABSU0ExAAgAAAEAAQCtPJxOs%2b9BxWtPNTAx9ZS1TdUy%2bPM4gthhrJ9ZmYpIH7LPMTCehZCUDm8UWWMViyUB69z4%2bN2xWMJ2x2samSMTQ9OG7fi18ptwhYtbqB74fTcRAqvMy8i8%2fdxotqDqDB%2bulUy4GzmjlEpMmENQCav48OUqxZ%2fieO8aFXgFpWniGsznwH1utBvrRLyO3Q8gnmt7fTHLtKuk2DDQTlAjSUSDH9slAkTJQ4AAilB6va4oL9d%2bZ4uEM%2fFmn2Jeq6DEeuOVSRWWD0GnnYLEldDCpPDC0K5LLoW2ia0YjS%2bVaw%2bfo9yyVtV%2fMijZfQgUyBqyt5Bn7Aks%2bs9%2fRAaOf66cjr2y&c=04893&c=venda&c=portugual&c=se3&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:2108
      • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe" "RunRole" "61ef60ee-3979-46cb-bdcc-a4b3e23c08d7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5392
      • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe" "RunRole" "b2c9590f-67d8-4521-a993-6396b3d03586" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:676

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e588aa8.rbs

          • Path C:\Config.Msi\e588aa8.rbs
          • Size 214KB
          • SHA256 18697a3e21f645be9ac92b418b56cde0a0274d9ee968887fc7af83bc1ccbbfdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\system.config
          • Size 970B
          • SHA256 9b9778b5bbdaf3752103a0dd68db1dbd2da9d47e8bd8650154945e5d4fa816c4
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 216b10c887784499981aecc3258888d57206d20da140c3cc49a4298ee96337c9
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 9ed1b073c128ae1e507676396a910b7293fa10fc7ac1b64bc8509b6acd88e55f
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 1d3756c835c457ea792e33b85e3e6bc5d7bd208b9b3928c5d24abe17a1ebb5cf
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 b88e5e926d116d9033b893f5e3afa46f88489d13b8f715fbdbb27b56415c1b65
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSI4987.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4987.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4B8C.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4B8C.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.1.24.9579\ae962e4a518f5d89\ScreenConnect.ClientSetup.msi
          • Size 11.9MB
          • SHA256 b9d639ca489eb79087816d586201ab589984882270f3af323144f851c3b6549d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8C4E.tmp

          • Path C:\Windows\Installer\MSI8C4E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 fe039abf0cec4fd9c9fb491e630c51cb9935164e9562c4b7090a82d60c903eea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {77c01047-af86-4235-9345-03af9a7343c2}_OnDiskSnapshotProp

          • Path \??\Volume{8408d847-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{77c01047-af86-4235-9345-03af9a7343c2}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 d0346598c16689558b55da6571c71b161162d3ae661952b78b524c1fc6646ae1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/676-216-0x000000001B970000-0x000000001B9A0000-memory.dmp

          memory/676-215-0x0000000002790000-0x000000000279C000-memory.dmp

          memory/1608-85-0x00000000049C0000-0x00000000049E8000-memory.dmp

          memory/1608-94-0x0000000004DF0000-0x0000000004DFE000-memory.dmp

          memory/2108-191-0x0000000003C70000-0x0000000003D02000-memory.dmp

          memory/2108-196-0x0000000003E50000-0x0000000003F25000-memory.dmp

          memory/2108-218-0x0000000004940000-0x0000000004953000-memory.dmp

          memory/2108-217-0x00000000011B0000-0x00000000011BB000-memory.dmp

          memory/2108-170-0x00000000036E0000-0x00000000036FA000-memory.dmp

          memory/2108-193-0x0000000003940000-0x0000000003981000-memory.dmp

          memory/2108-186-0x00000000039B0000-0x0000000003A1A000-memory.dmp

          memory/2108-180-0x0000000003A20000-0x0000000003BD0000-memory.dmp

          memory/2108-176-0x00000000037D0000-0x0000000003864000-memory.dmp

          memory/2108-182-0x00000000038F0000-0x0000000003940000-memory.dmp

          memory/4172-5-0x0000000005ED0000-0x0000000005EF8000-memory.dmp

          memory/4172-6-0x0000000005F80000-0x0000000006130000-memory.dmp

          memory/4172-4-0x0000000005E30000-0x0000000005EC4000-memory.dmp

          memory/4172-8-0x0000000005F70000-0x0000000005F80000-memory.dmp

          memory/4172-3-0x0000000001F80000-0x0000000001F8C000-memory.dmp

          memory/4172-0-0x0000000005F70000-0x0000000005F80000-memory.dmp

          memory/4172-7-0x00000000066E0000-0x0000000006C84000-memory.dmp

          memory/4172-2-0x0000000005F70000-0x0000000005F80000-memory.dmp

          memory/4172-1-0x0000000001F10000-0x0000000001F18000-memory.dmp

          memory/4256-45-0x0000000004FB0000-0x0000000004FBC000-memory.dmp

          memory/4256-41-0x0000000004F70000-0x0000000004F9E000-memory.dmp

          memory/4256-53-0x0000000005430000-0x00000000055E0000-memory.dmp

          memory/4256-49-0x00000000051E0000-0x0000000005274000-memory.dmp

          memory/4516-213-0x000001A437CD0000-0x000001A437CDC000-memory.dmp

          memory/5392-207-0x000000001B880000-0x000000001B8EA000-memory.dmp

          memory/5392-212-0x0000000002F90000-0x0000000002FAA000-memory.dmp

          memory/5392-211-0x0000000002F30000-0x0000000002F4A000-memory.dmp

          memory/5392-210-0x000000001C1A0000-0x000000001C326000-memory.dmp

          memory/5392-209-0x000000001BE60000-0x000000001C010000-memory.dmp

          memory/5392-208-0x000000001BC10000-0x000000001BCA4000-memory.dmp

          memory/5392-206-0x0000000000D00000-0x0000000000DAA000-memory.dmp

          memory/5392-219-0x0000000002DD0000-0x0000000002DDC000-memory.dmp