Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/08/2026, 02:51

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260805-dcfrmawgra
  • SHA256 d5585ba530109c3b21e6070b1a7e9b2edf2fceaaae368d6dbec95a6d7f6a3c2b
  • 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 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 13 IoCs
  • Executes dropped EXE 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 9 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:4296
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\2b3bfbf2b4268d66\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:1852
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:1004
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding BBAECF4AA07532E422064EC2E1EE3DB4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240687750 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1196
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9D26.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240688437 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2472
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA2E4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689906 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:456
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:324
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8B87B32747B33C857774C0F331554862
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1196
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 76C9BA3B867A7E7B109FA4A0780F8FD9 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3052
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5092
    • C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-n3p38o-relay.screenconnect.com&p=443&s=c68d2990-5f0e-4dba-ab94-beb208f91580&k=BgIAAACkAABSU0ExAAgAAAEAAQAFHkQJ2xW6K15dBfaUygZkqpRZeYdVpmAERR%2bpc0q5Uwog75aPGqUpPX08xM2FDsT2qf2U1L1GdmrcAd8LLK0jM0%2fGj6f%2bJcrU9tQ1qOCnoe1X2uWIhyDUOue8xG%2bzfYeHWyRLfPEsuvnpOOyrz85w0AUevT%2ffRXKElnHNFoEC1xRSAjNo4frTNKxSQ0KD5SzhUftHiWNujp0o7SW8Ega5qtkUPbIG9R8Ie2F7SHfaJ18lXBOLAml%2bPuZcNaHrNR7bmdObXaU6K1tMWQt6kAjYsUO7dvI%2f6lqKzLhiF3sEjnqs5LohyFKerel5N9Iy4WNDdYAJ3g77Z9nAV%2fDeHCTF"
      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:2084
      • C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.WindowsClient.exe" "RunRole" "f47a1b22-02d8-4da5-8ff4-7b35afa119ca" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2324

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58e6c2.rbs

          • Path C:\Config.Msi\e58e6c2.rbs
          • Size 214KB
          • SHA256 a723cf22b54d821d8173cff809b9a00aec512af841bd5c00166a9c31ff31476e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2b3bfbf2b4268d66)\system.config
          • Size 960B
          • SHA256 2950398e4e6b377bc446519f33b569472e6d37a2e1b788f4019e0b6a55693c15
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 a2b184990207cf4241d7dd795d832459ae7fe832f43d4d2f2585403eb226ebf1
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 bc8f2df473b8eb620da0f551997f7b6fd633abf09aae32cc9cf492284e316815
          • 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

          MSI9A18.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9A18.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9D26.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9D26.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\2b3bfbf2b4268d66\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 0c5d5cbdca3a6c82e3b4bdef9412caecf07441bb5bb59d8cb975da55ee115b55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEA7B.tmp

          • Path C:\Windows\Installer\MSIEA7B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          o0qlwpvc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2b3bfbf2b4268d66)\o0qlwpvc.newcfg
          • Size 881B
          • SHA256 2767588ff44445d67af909527f08336d3d52fb9c8a79a75cc3aa23a473d9efe5
          • MD5 SHA1 SHA512 TLSH

          szs24fcq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2b3bfbf2b4268d66)\szs24fcq.newcfg
          • Size 683B
          • SHA256 8fa834f206cba7b1835f57b4e0702c2ea38c5f203af2422fdc58c2ae13255f2a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2b3bfbf2b4268d66)\user.config
          • Size 520B
          • SHA256 cf9d340a8a71654e0926db7c4476a06b7fa3b658c6b9be792ddb5684efeaa5e7
          • MD5 SHA1 SHA512 TLSH

          memory/1196-48-0x0000000004F60000-0x0000000005110000-memory.dmp

          memory/1196-36-0x0000000004BE0000-0x0000000004C0E000-memory.dmp

          memory/1196-40-0x0000000004C20000-0x0000000004C2C000-memory.dmp

          memory/1196-44-0x0000000004D10000-0x0000000004DA4000-memory.dmp

          memory/2084-172-0x0000000004570000-0x0000000004720000-memory.dmp

          memory/2084-209-0x0000000004970000-0x0000000004A46000-memory.dmp

          memory/2084-168-0x0000000004300000-0x0000000004394000-memory.dmp

          memory/2084-205-0x0000000004790000-0x0000000004822000-memory.dmp

          memory/2084-207-0x00000000044A0000-0x00000000044E1000-memory.dmp

          memory/2084-162-0x0000000004240000-0x000000000425A000-memory.dmp

          memory/2084-203-0x0000000004720000-0x000000000478C000-memory.dmp

          memory/2084-174-0x0000000004450000-0x00000000044A0000-memory.dmp

          memory/2324-231-0x000000001B8B0000-0x000000001BA60000-memory.dmp

          memory/2324-230-0x000000001B330000-0x000000001B3C4000-memory.dmp

          memory/2324-232-0x0000000002960000-0x000000000297A000-memory.dmp

          memory/2324-233-0x000000001CCA0000-0x000000001CE26000-memory.dmp

          memory/2324-229-0x000000001B2C0000-0x000000001B32C000-memory.dmp

          memory/2324-228-0x0000000000740000-0x00000000007EE000-memory.dmp

          memory/2472-80-0x0000000004B90000-0x0000000004BB8000-memory.dmp

          memory/4296-4-0x0000000005870000-0x0000000005904000-memory.dmp

          memory/4296-7-0x0000000006070000-0x0000000006614000-memory.dmp

          memory/4296-1-0x0000000001AE0000-0x0000000001AE8000-memory.dmp

          memory/4296-2-0x0000000005860000-0x0000000005870000-memory.dmp

          memory/4296-8-0x0000000005860000-0x0000000005870000-memory.dmp

          memory/4296-3-0x0000000001B00000-0x0000000001B0C000-memory.dmp

          memory/4296-6-0x0000000005900000-0x0000000005AB0000-memory.dmp

          memory/4296-5-0x0000000005830000-0x0000000005858000-memory.dmp

          memory/4296-0-0x0000000005860000-0x0000000005870000-memory.dmp