Analysis

  • max time kernel
    149s
  • max time network
    107s
  • 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, 00:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260805-aky2dsgl3t
  • SHA256 9a94f59267f6e22a193a765b1ec1eea811a9e74d2071d6b58bad5acf8db3fef2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 13 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 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:4688
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\f245171dfe3fb0d4\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:2892
  • 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:4532
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 39A4CA4FEAC238BDF3446858BB792CCF C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240715656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3640
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB23.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240716656 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:712
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6394.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739234 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4440
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4452
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DE2FE461CF4B6A2276AA48DBD0875B67
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4780
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C3471865C16F65AE6EFA64E394C95862 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3600
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4288
    • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-uzq6f1-relay.screenconnect.com&p=443&s=7ff6a80c-ab01-4a76-8970-c2fc41dc35ed&k=BgIAAACkAABSU0ExAAgAAAEAAQDxwsP8LG3YWuzF%2b5RYuPA9jApFgvmTcmTttKXchu2E4kOiANKqQJJH2Uj3aVipibRzUVle9Vnn2ubWz5d79TrRrmtsQZvjZZhvvAzb5IKX2zoX6vRBtNj9q7KGkcKnudpLj1meqIzw1Xkb9AofCtkPMhXQJSywmV5%2bbNiKU1Kb5uSdys1MCYPkqxUL%2bhi1ZFRjnjypxNdr9SgzFV%2bhfTXHHiYv7GPOeibgg7BFycCZiuJqQd0BNDCvVvIAhLLjdu8hUNLMpKyQcxNmynt2%2ftLgSolz3DrH67VA4lyMalWqW3Qw1TCSExOGSdY1zRNqjKOupMJdcvg5MjdE29d5udiW"
      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:3608
      • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe" "RunRole" "c5c1214e-dcf2-4b93-b380-f38f797fa7cf" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4552
      • C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsClient.exe" "RunRole" "530a15da-fa61-4287-8808-299efc085646" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3152

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59a7e0.rbs

          • Path C:\Config.Msi\e59a7e0.rbs
          • Size 214KB
          • SHA256 1b1d9d4b0167b8b0bf0bd3d2fc4d2f8b7bc856a25f373cbfbbd984ae14b2f96a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (f245171dfe3fb0d4)\system.config
          • Size 954B
          • SHA256 54a74f5db8ede340bd45cdf5d6bb0bb8524799027faa894ccfc880b1a076fb21
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 dace5cd35660c81ebc760500f1979117969751e16c183fdae21f89e577c3ea67
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 895f3912ab7d818c60f98dfe7195fdcc1d1544a4eec908350eac31e7bf0fbcdc
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 7df7bc192fa45ad0de5dd8ff34c8968d253a3da1ecf9e6ad122d2e1e679a81c2
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 09983dd2ce6af5bbf2eea113a9a533105e79fbd298cec1ce3311d5088360b18a
          • 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

          MSI70B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI70B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB23.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB23.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\f245171dfe3fb0d4\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 3e67392cee3ec029660c008950ee7b50f764d3b2a2bfdf35634ed7d247f16119
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIAA60.tmp

          • Path C:\Windows\Installer\MSIAA60.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          qkhrmr0p.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\qkhrmr0p.newcfg
          • Size 683B
          • SHA256 4ee87375ff1cbab60fc366393f4679df9eeab84242bc276541a67b739c6b5c02
          • MD5 SHA1 SHA512 TLSH

          scua0gpz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\scua0gpz.newcfg
          • Size 881B
          • SHA256 389ab93670b6dd2c389e7f82e28b51bc21c2e3c5b9c516e7ab95f2591559545a
          • MD5 SHA1 SHA512 TLSH

          ue2dxloo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\ue2dxloo.newcfg
          • Size 881B
          • SHA256 4439631ad67f7005ef7cbcd3bdd1e91cc43f4951908cc7172f77fdf1e54e6218
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (f245171dfe3fb0d4)\user.config
          • Size 520B
          • SHA256 72fc0a47167b3617bf9d697533e18e677b05fb5da089b7c7214ad64322757f13
          • MD5 SHA1 SHA512 TLSH

          memory/712-83-0x0000000005320000-0x0000000005348000-memory.dmp

          memory/3608-210-0x00000000042A0000-0x00000000042E1000-memory.dmp

          memory/3608-207-0x0000000004310000-0x000000000437C000-memory.dmp

          memory/3608-175-0x0000000004450000-0x0000000004600000-memory.dmp

          memory/3608-171-0x0000000004140000-0x00000000041D4000-memory.dmp

          memory/3608-208-0x0000000004600000-0x0000000004692000-memory.dmp

          memory/3608-212-0x00000000047E0000-0x00000000048B6000-memory.dmp

          memory/3608-179-0x0000000004230000-0x0000000004280000-memory.dmp

          memory/3608-165-0x0000000001A40000-0x0000000001A5A000-memory.dmp

          memory/3640-43-0x0000000003340000-0x000000000334C000-memory.dmp

          memory/3640-47-0x00000000057A0000-0x0000000005834000-memory.dmp

          memory/3640-51-0x00000000059F0000-0x0000000005BA0000-memory.dmp

          memory/3640-39-0x0000000003350000-0x000000000337E000-memory.dmp

          memory/4552-228-0x00000000003E0000-0x000000000048E000-memory.dmp

          memory/4552-229-0x0000000002470000-0x00000000024DC000-memory.dmp

          memory/4552-235-0x0000000002420000-0x0000000002461000-memory.dmp

          memory/4552-234-0x000000001CA50000-0x000000001CBD6000-memory.dmp

          memory/4552-233-0x0000000002400000-0x000000000241A000-memory.dmp

          memory/4552-232-0x000000001B660000-0x000000001B810000-memory.dmp

          memory/4552-230-0x000000001B410000-0x000000001B4A4000-memory.dmp

          memory/4688-7-0x0000000006020000-0x00000000065C4000-memory.dmp

          memory/4688-2-0x0000000003170000-0x0000000003180000-memory.dmp

          memory/4688-8-0x0000000003170000-0x0000000003180000-memory.dmp

          memory/4688-3-0x0000000003110000-0x000000000311C000-memory.dmp

          memory/4688-4-0x00000000057F0000-0x0000000005884000-memory.dmp

          memory/4688-0-0x0000000003170000-0x0000000003180000-memory.dmp

          memory/4688-5-0x0000000005880000-0x00000000058A8000-memory.dmp

          memory/4688-6-0x00000000058B0000-0x0000000005A60000-memory.dmp

          memory/4688-1-0x00000000030E0000-0x00000000030E8000-memory.dmp