Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/05/2026, 00:15

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.7MB
  • Sample260517-akb7maaz41
  • SHA256 b6292f45e3fc5aef14fc93a82b9fd5a55d26a1009b83cbab33795f7ab5178eec
  • 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • 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 3 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2616
  • 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:4192
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 61089A28AAE8D6B68E872FA95E5D0A67 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4904
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240652750 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1088
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI150B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240653578 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1596
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI19AF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240654843 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3464
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4168
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D9A9371E2CEB76F57DE0C256D56E4FCF
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8335583311ED9AB5E844AF34D1275274 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1296
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2112
    • C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-km9bna-relay.screenconnect.com&p=443&s=b01128a6-903c-4654-9103-5417c905c7f6&k=BgIAAACkAABSU0ExAAgAAAEAAQCxn%2fB8iIsDW96nKHwU1kjO6d1mGh1xSFHDVIbpnbfybRShCRKseCdg%2fariEIwe4zTVaMgzTzBUcFBkAuNRkL897DkkPy9ozS%2bMNXkaqnCTjiCyXgrNaLRCiaxo3mFHxKqXheo6HI1I3S7HKRJdK%2bHFSZ3f7SsAVjG%2bCJdAqYJoN8xe8Pa1agTJ2xXjCqA%2fjrFu9I0rsFqFa%2bxTw1cG7LW55MmP%2fDCnfSsrHxtyjd0hJpconfKvGZ6F9%2bV4X9CJ%2bmXV%2bqYeOZJuWVBIwO0hLW%2fOKC2%2boAgxVu5hWlDwOK0r0ksv3lhSV5eweTmhEjWhY9s6A0TR9rz%2b5DayI4SvXjLN&c=maina&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3900
      • C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsClient.exe" "RunRole" "50e20f6b-cad9-4e8a-bf0a-63f5b615ce8d" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4996
      • C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsClient.exe" "RunRole" "4c3f9957-d9cb-495f-8667-d7687c3c506b" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2720

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e584e2c.rbs

          • Path C:\Config.Msi\e584e2c.rbs
          • Size 214KB
          • SHA256 b6ba2bdd0059a411ebe3a359a7d7087182e388ec68b8c4872fc9c20b8420a4a8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\Client.en-US.resources
          • Size 64KB
          • SHA256 a189e7cdb5953cbfb808962e5cc30fb344ef4b62cf9ec3533faf6bdc1bede15d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8d82d3d077a65cebe622fc147bd040c7acc92bda071a0438e828ce630350f9b5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.ClientService.dll
          • Size 89KB
          • SHA256 4dc25a19ecaa325d1b22a68d7a5499c8a750f26384cc24e18a9c13e43dcecb7b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 91fb4fa934401bc4d1869565b364cc122c5c5a16df08e75afbec99dddfc53b89
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.Core.dll
          • Size 575KB
          • SHA256 c2d1716a36be19218bbd7ae0c60ac6bce94e73b95a48e2261ad249b1b766c604
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 a46556ad79dd5ab964b03f7e8fee3df52ec3e95032ac0158e8a3f607ff1ccd16
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsClient.exe
          • Size 668KB
          • SHA256 9e59c4faad181a99bd6f757895453ba459788b9ed7ebc3c218b1cf533ddb321d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 dabcb7f19a375bd5eadf7efbd7b46095f94a5c8fde2b90a6982f721457e92dbc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bd0efa335c0835c8)\system.config
          • Size 972B
          • SHA256 b274ddf53e283f5438b0d4e44b10f32643d09df46da9efa1e3dcdd2a56a46e97
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e93d816661616f6d095433be09871b4808b9d0afad04325494e172030c5172da
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 21cf058e3327b5af3bc08239c6a0d31c3352d7add5bacd326fc5308bcb1c9502
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 5a84a96740967c4da7df807209c77efae7871dc58da7faa1e89fa7745bdcd3c5
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 dc9653e4936bba9c30ea5d8e32d5cee2e70e6851535db745dca84ca1e4602bab
          • 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

          MSI10F3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp
          • Size 1.1MB
          • SHA256 c99b56907ea67b189677af45b8c4b81e5109e30f81aabf100997e9f2b681ba45
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp-\ScreenConnect.Core.dll
          • Size 565KB
          • SHA256 0a3147193829175d7da9704a06da7a143cf3ac7f9ba123f051e19c60f0985995
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 936055c9cecbce54167e3d865bed76119b8668d41e987f5c76e82a7c9cf1898c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10F3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c3941fb00af27c07d37e27a65f60420ec433db260c99c17a7321649e02e27bc0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI150B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI150B.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 663b4d48e4183306995e4a66d4d8222292884152a6da85fe3800bb015b6c223b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4F93.tmp

          • Path C:\Windows\Installer\MSI4F93.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e584e2b.msi

          • Path C:\Windows\Installer\e584e2b.msi
          • Size 9.7MB
          • SHA256 b6292f45e3fc5aef14fc93a82b9fd5a55d26a1009b83cbab33795f7ab5178eec
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1088-27-0x0000000005510000-0x000000000553E000-memory.dmp

          memory/1088-31-0x0000000005550000-0x000000000555C000-memory.dmp

          memory/1088-39-0x00000000058B0000-0x0000000005A60000-memory.dmp

          memory/1088-40-0x0000000006010000-0x00000000065B4000-memory.dmp

          memory/1088-35-0x0000000005660000-0x00000000056F4000-memory.dmp

          memory/1596-72-0x0000000004730000-0x0000000004758000-memory.dmp

          memory/3900-177-0x0000000004200000-0x0000000004241000-memory.dmp

          memory/3900-153-0x0000000003E70000-0x0000000003E8A000-memory.dmp

          memory/3900-163-0x0000000004310000-0x00000000044C0000-memory.dmp

          memory/3900-165-0x00000000041B0000-0x0000000004200000-memory.dmp

          memory/3900-159-0x00000000040C0000-0x0000000004154000-memory.dmp

          memory/3900-174-0x0000000004560000-0x00000000045F2000-memory.dmp

          memory/3900-169-0x0000000004270000-0x00000000042DC000-memory.dmp

          memory/3900-180-0x0000000004740000-0x0000000004815000-memory.dmp

          memory/4996-192-0x0000000000620000-0x00000000006CA000-memory.dmp

          memory/4996-193-0x0000000000EE0000-0x0000000000F4C000-memory.dmp

          memory/4996-194-0x000000001B5F0000-0x000000001B684000-memory.dmp

          memory/4996-195-0x000000001B840000-0x000000001B9F0000-memory.dmp

          memory/4996-196-0x000000001CC30000-0x000000001CDB6000-memory.dmp

          memory/4996-197-0x0000000000E90000-0x0000000000EAA000-memory.dmp

          memory/4996-198-0x0000000000F60000-0x0000000000F7A000-memory.dmp