Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 12:33

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260727-prgs1seq2v
  • SHA256 1af0783a883a0bdad3bcf6e8cedd8ef06510ee16ce9df370da1610de96c231e0
  • 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:5276
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\dd2f44edc35a5713\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:4500
  • 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:1968
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F6B83F4A3FD05BB0108F5BBB935E69F0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730796 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4236
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4770.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732093 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2736
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI41CF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240796218 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5876
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:980
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 44F5A0B81F3C22B0B7B3891751CB3569
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3228
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5AE76EDF54827048D359F20A9B194EEC E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4632
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:476
    • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hbg0fl-relay.screenconnect.com&p=443&s=14cce0f2-8ce4-4e87-b0e6-7f2ae228f252&k=BgIAAACkAABSU0ExAAgAAAEAAQCRnGvNrGmcQWqj6w4dF3XENvPq%2bOsGm5YbdHfiswSUGYG7RSwhWhcB8zipaY%2fxtdRs2wJDhA2dVIILWVB%2bsiBRiUWD7TMCsUnuQmwaty9P2n9KOMFKVdLxSp7ydiy0%2fHlKUgiYFrDbjXaezYT4wmPSP8iQANm5EOlJ31ArtQxd7bf3cexwdF6gvHHtmltvNEU0accZxPwQBOWlle0F%2ffscsC48cDQATtrMBpLoTiUAWtaWZN1dFAoK743wWDByPQoCE0d%2fmqUhFbT3YLsxl2H8n7%2bSOWzih40SPZYviNm7EUjZrSr5Pa3q030EBuJWCkYUlFqE3Vh%2b9N%2fKSgNjbszx&c=for%20pr%20arem%20file&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:2812
      • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe" "RunRole" "3c9c6de9-aaa5-4828-9908-7e6c40cf95ac" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4620
      • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe" "RunRole" "b794db3a-7b36-4e1e-9384-b5e6c6ea122f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4980

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a97be.rbs

          • Path C:\Config.Msi\e5a97be.rbs
          • Size 214KB
          • SHA256 e7788c0ab803d310e6af764754f5a2456ba901e71d59f315880405214e053b21
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\system.config
          • Size 962B
          • SHA256 7d1fd2b732a1c652913a7085e691b69df3973d813022f3ae286f72e0c3db2413
          • MD5 SHA1 SHA512 TLSH

          MSI41F1.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI41F1.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4770.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4770.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\dd2f44edc35a5713\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 2129d42bffa4274b520f7d9102147b92893ef27e7fb7bbd650ff384c8fb50e22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI9E17.tmp

          • Path C:\Windows\Installer\MSI9E17.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          u52c2dba.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\u52c2dba.newcfg
          • Size 883B
          • SHA256 231b4f8489ab7e7128f49236b524573e786c0ad16c20c84ab31da6cdc3642be6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\user.config
          • Size 683B
          • SHA256 dc5323c1dec0f3f9d233b7eb257117933ae1393361115417e8cd7356a8e2c31f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\user.config
          • Size 520B
          • SHA256 b16fe343855072704cf94361e993a199f9fa2063323bbca2ef1bc64876945b2d
          • MD5 SHA1 SHA512 TLSH

          memory/1968-165-0x000001DA27DE0000-0x000001DA28784000-memory.dmp

          memory/2736-76-0x0000000006080000-0x00000000060A8000-memory.dmp

          memory/2812-200-0x0000000004560000-0x0000000004636000-memory.dmp

          memory/2812-198-0x00000000041F0000-0x0000000004231000-memory.dmp

          memory/2812-160-0x0000000003DF0000-0x0000000003E84000-memory.dmp

          memory/2812-154-0x00000000017C0000-0x00000000017DA000-memory.dmp

          memory/2812-164-0x0000000004040000-0x00000000041F0000-memory.dmp

          memory/2812-196-0x0000000004370000-0x0000000004402000-memory.dmp

          memory/2812-195-0x0000000004260000-0x00000000042CC000-memory.dmp

          memory/2812-178-0x0000000003FE0000-0x0000000004030000-memory.dmp

          memory/4236-34-0x00000000035E0000-0x000000000360E000-memory.dmp

          memory/4236-42-0x0000000005760000-0x00000000057F4000-memory.dmp

          memory/4236-38-0x0000000003620000-0x000000000362C000-memory.dmp

          memory/4236-46-0x00000000059B0000-0x0000000005B60000-memory.dmp

          memory/4620-206-0x0000000000F70000-0x000000000101E000-memory.dmp

          memory/4620-207-0x000000001BC60000-0x000000001BCCC000-memory.dmp

          memory/4620-224-0x000000001C560000-0x000000001C6E8000-memory.dmp

          memory/4620-223-0x0000000003060000-0x000000000307A000-memory.dmp

          memory/4620-222-0x000000001C220000-0x000000001C3D0000-memory.dmp

          memory/4620-208-0x000000001BFD0000-0x000000001C064000-memory.dmp

          memory/5276-1-0x0000000005850000-0x0000000005858000-memory.dmp

          memory/5276-3-0x0000000005900000-0x0000000005994000-memory.dmp

          memory/5276-2-0x0000000005870000-0x000000000587C000-memory.dmp

          memory/5276-10-0x0000000074F60000-0x000000007571C000-memory.dmp

          memory/5276-4-0x0000000074F60000-0x000000007571C000-memory.dmp

          memory/5276-8-0x0000000006150000-0x000000000670A000-memory.dmp

          memory/5276-7-0x0000000074F60000-0x000000007571C000-memory.dmp

          memory/5276-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

          memory/5276-5-0x00000000059A0000-0x00000000059C8000-memory.dmp

          memory/5276-12-0x0000000074F60000-0x000000007571C000-memory.dmp

          memory/5276-6-0x00000000059D0000-0x0000000005B80000-memory.dmp