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
    24/04/2026, 12:35

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.2MB
  • Sample260424-psnb7ah19v
  • SHA256 3abb02fc67be4e553ed0f961a0f00119bdfaffdb402136ce1b19a89d88d61562
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 6 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:2392
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.1.24.9579\2be711191a6d25be\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:1036
  • 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:5088
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6CC8A15F30229DD35C35104DCD14D031 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3316
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672187 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2208
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI602D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672828 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4988
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5898.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736531 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1056
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1480
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 783DD6E3740D81FE53C74E8CE6C75BD2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3340
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4D1E4BE58887DA19F08D8D052BC59EAC E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4180
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3396
    • C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-eefr6a-relay.screenconnect.com&p=443&s=6a552336-e07c-448a-87d1-c5a78926f054&k=BgIAAACkAABSU0ExAAgAAAEAAQAp3ZiMnmZZEn2UFMyW7ngJvQ9o8phKZq525p7mHexLvi0lYS%2f9FZQnaguvX9Baz7Z0Gy1M4%2fmfO%2bS%2bYmBQ5C1QnSWMS7frwvrxLo5GXJWbWS5mu1pCzREabr8oRaBkxaEkX4BH%2fXhWEysoZGAPmb%2fk0GASxfR8Iz%2f4eJ2%2fkIt32uclD2weE9bGw9nowSMMS%2ffR8qIOtXnplHYwqAA1m%2b%2fY%2bK9MpgTTuvUw8ieTOOsw5d%2bZLseBNU1o6xaihSNQKMzVHBphaG8dF5pAhMQbyMVEGUwaqrX%2bWFHBzxz1Yv9kIE9IZMKXEKwTApQJAU3eD1keBnHAJ%2fEAONRotPQYLkXR&c=asde&c=ser&c=ad&c=sds&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:3080
      • C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsClient.exe" "RunRole" "8daa014b-4c1f-47a5-8f82-853f630a57c6" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5100
      • C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsClient.exe" "RunRole" "b840175d-13c2-4a9e-a17d-252242ff5e85" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3496

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5987a6.rbs

          • Path C:\Config.Msi\e5987a6.rbs
          • Size 214KB
          • SHA256 bc5c1e7c9c498524fa53e0961ff52f8d28f931338e3e0c73de8d1dc6645a2e3b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\app.config
          • Size 1KB
          • SHA256 b3369f06d13bca8a10e0870cabd470c48734cd10604ff8a77eb3de17a608f6c4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2be711191a6d25be)\system.config
          • Size 974B
          • SHA256 95457d7d9b42737d35953526d89c36a49d9c681c972af05af5ac13c4ee5bb8c0
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 91d753f140351252586bdb9f09f863be874cac37ebf278b269d2711c940f912f
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 ee09d28a61cf6899ae48a0d7d18c0bc476ad048deb6912ebeb17394488be1025
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 ec551be2af676c085fa9d9baae559aec26d2857f437722ab1108da31f400ff85
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 be95b047ef943dc95ee7c2452c48f7c19c278831fb5647c838d70708aa2b6022
          • 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

          MSI5D2E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D2E.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI602D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI602D.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\2be711191a6d25be\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 c5ebfccbea6702568726fda232918cba81489ef6a0b2ec9d70ad9e8431878469
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI88EE.tmp

          • Path C:\Windows\Installer\MSI88EE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1480-229-0x000001A02EDB0000-0x000001A02F4EF000-memory.dmp

          memory/1480-224-0x000001A02EDB0000-0x000001A02F4EF000-memory.dmp

          memory/2208-51-0x0000000004E30000-0x0000000004FE0000-memory.dmp

          memory/2208-47-0x0000000004BE0000-0x0000000004C74000-memory.dmp

          memory/2208-43-0x0000000004AF0000-0x0000000004AFC000-memory.dmp

          memory/2208-39-0x0000000004B10000-0x0000000004B3E000-memory.dmp

          memory/2392-12-0x0000000001DC0000-0x0000000001DD9000-memory.dmp

          memory/2392-11-0x0000000000780000-0x00000000007A4000-memory.dmp

          memory/2392-8-0x0000000005B00000-0x0000000005B10000-memory.dmp

          memory/2392-0-0x0000000005B00000-0x0000000005B10000-memory.dmp

          memory/2392-7-0x0000000006300000-0x00000000068A4000-memory.dmp

          memory/2392-6-0x0000000005BA0000-0x0000000005D50000-memory.dmp

          memory/2392-5-0x0000000005AC0000-0x0000000005AE8000-memory.dmp

          memory/2392-4-0x0000000005B10000-0x0000000005BA4000-memory.dmp

          memory/2392-3-0x0000000000F30000-0x0000000000F3C000-memory.dmp

          memory/2392-2-0x0000000005B00000-0x0000000005B10000-memory.dmp

          memory/2392-1-0x0000000000F10000-0x0000000000F18000-memory.dmp

          memory/3080-173-0x0000000003790000-0x00000000037AA000-memory.dmp

          memory/3080-190-0x0000000003CD0000-0x0000000003D3A000-memory.dmp

          memory/3080-186-0x0000000003A30000-0x0000000003A80000-memory.dmp

          memory/3080-199-0x00000000039F0000-0x0000000003A31000-memory.dmp

          memory/3080-183-0x0000000003B20000-0x0000000003CD0000-memory.dmp

          memory/3080-201-0x0000000003F20000-0x0000000003FF5000-memory.dmp

          memory/3080-197-0x0000000003D40000-0x0000000003DD2000-memory.dmp

          memory/3080-179-0x00000000038D0000-0x0000000003964000-memory.dmp

          memory/3080-226-0x0000000004E70000-0x0000000004E83000-memory.dmp

          memory/3080-225-0x0000000000BC0000-0x0000000000BCB000-memory.dmp

          memory/3496-222-0x0000000001280000-0x000000000128C000-memory.dmp

          memory/3496-223-0x000000001C250000-0x000000001C98F000-memory.dmp

          memory/3496-218-0x0000000001600000-0x0000000001641000-memory.dmp

          memory/4988-83-0x0000000005100000-0x0000000005128000-memory.dmp

          memory/5088-219-0x0000024A989F0000-0x0000024A9912F000-memory.dmp

          memory/5088-88-0x0000024A989F0000-0x0000024A9912F000-memory.dmp

          memory/5088-220-0x0000024A99D40000-0x0000024A99D4C000-memory.dmp

          memory/5100-212-0x000000001BE30000-0x000000001BEC4000-memory.dmp

          memory/5100-216-0x0000000001640000-0x000000000165A000-memory.dmp

          memory/5100-213-0x000000001C080000-0x000000001C230000-memory.dmp

          memory/5100-217-0x0000000001660000-0x00000000016A1000-memory.dmp

          memory/5100-215-0x00000000015F0000-0x000000000160A000-memory.dmp

          memory/5100-211-0x0000000002F50000-0x0000000002FBA000-memory.dmp

          memory/5100-210-0x0000000000D90000-0x0000000000E3A000-memory.dmp

          memory/5100-227-0x00000000015B0000-0x00000000015BC000-memory.dmp

          memory/5100-228-0x000000001C550000-0x000000001CC8F000-memory.dmp

          memory/5100-214-0x000000001C3C0000-0x000000001C546000-memory.dmp