Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/08/2026, 03:09

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260806-dnqe7sscmf
  • SHA256 1c970b8ebf117214c75ef86959dd2d7300e94ec8f5153bd247f3e4a32f49e794
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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 9 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 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 SetWindowsHookEx 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
    • Suspicious use of SetWindowsHookEx
    PID:2688
  • 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:1112
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 49182FB2C3C9C6431E7810957DFD3359 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3264
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726421 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4092
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3698.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728015 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4732
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3DEC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729781 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2436
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6080
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 471F14E14CE5046A147C39F5C0A4803E
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4332
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C28C3AED88D912B4152C372038ABBF86 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3336
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1780
    • C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ps2mzl-relay.screenconnect.com&p=443&s=842e7369-e04d-4c7b-8984-5b74906e2058&k=BgIAAACkAABSU0ExAAgAAAEAAQCduQu%2bGOvn%2bh5i0feWAjHQvjFd7y9RjEZFhxhYdcTKLA6qwXaLui6HCPdBBXmFRUdKOKqjv6JH7y4Af4n8o9PJx%2bk%2ftuVx%2f2%2bg%2fPFf6fbpFlwKgvErq15CiRYiIfc%2f8kPwb%2f7PH8qV32UW3PmD21Z%2fgrJmuiVGi077XASoVNaE3pyoLHonZKPHBNJ6zhVYX4AJ%2fxiuvMfviHpJD2aZol0wIwARlkOJFAMKirM63lgGv8S8Fm4sWBmGn5%2bbqxBA2E%2fg5s6g61E4rqAl7v4qGblxUljw9BL0PodSXzg4UenR7Utw3hPFPL%2fUYc6jrrhKRGjq9SYJiEI4FZErwl12atHc"
      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:3444
      • C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe" "RunRole" "207aa041-d486-4036-826b-14774553bf31" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5344
      • C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe" "RunRole" "b3c8155d-3cb4-4816-83f9-8b5f0bca1f68" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3020

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e598880.rbs

          • Path C:\Config.Msi\e598880.rbs
          • Size 214KB
          • SHA256 2999d4d2cd3c9e6876c96b5b1c09107d994a4f0b26b7bc7f13f01906476575d6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e17bf0bc3a17e965)\system.config
          • Size 972B
          • SHA256 da00f420dc254e093c427b3d2253ddc2bac521dff639275bda753d5251775d09
          • MD5 SHA1 SHA512 TLSH

          MSI2FFF.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2FFF.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3698.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3698.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8F18.tmp

          • Path C:\Windows\Installer\MSI8F18.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59887f.msi

          • Path C:\Windows\Installer\e59887f.msi
          • Size 9.8MB
          • SHA256 1c970b8ebf117214c75ef86959dd2d7300e94ec8f5153bd247f3e4a32f49e794
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hjvfwwzu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e17bf0bc3a17e965)\hjvfwwzu.newcfg
          • Size 683B
          • SHA256 3e4dddc27c57cdd4cd92a76a571d42b98e87919a49dce42225ee252a50f531c2
          • MD5 SHA1 SHA512 TLSH

          p0rwcesi.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e17bf0bc3a17e965)\p0rwcesi.newcfg
          • Size 882B
          • SHA256 c35638cac0186030aa4faab7fb80985e9e3e123277d76500cd4db921c61f562e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e17bf0bc3a17e965)\user.config
          • Size 520B
          • SHA256 dc315eb48032bea381f6c39f306684fcaf2e14326513062737197f47cc1665ed
          • MD5 SHA1 SHA512 TLSH

          {54dd0571-8189-4402-9cf8-21f3a9e8f785}_OnDiskSnapshotProp

          • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{54dd0571-8189-4402-9cf8-21f3a9e8f785}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 da89c488645b4244ef8e29a8992acc2a1aeaf10680c062becaa7a2285177efe6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3444-183-0x0000000003B60000-0x0000000003BCC000-memory.dmp

          memory/3444-147-0x00000000039E0000-0x0000000003A74000-memory.dmp

          memory/3444-141-0x0000000001370000-0x000000000138A000-memory.dmp

          memory/3444-184-0x0000000003E70000-0x0000000003F02000-memory.dmp

          memory/3444-164-0x0000000003B10000-0x0000000003B60000-memory.dmp

          memory/3444-186-0x0000000003AB0000-0x0000000003AF1000-memory.dmp

          memory/3444-188-0x0000000004060000-0x0000000004136000-memory.dmp

          memory/3444-151-0x0000000003CC0000-0x0000000003E70000-memory.dmp

          memory/4092-33-0x0000000005570000-0x0000000005720000-memory.dmp

          memory/4092-29-0x0000000005320000-0x00000000053B4000-memory.dmp

          memory/4092-21-0x0000000005250000-0x000000000527E000-memory.dmp

          memory/4092-25-0x00000000031B0000-0x00000000031BC000-memory.dmp

          memory/4092-34-0x0000000005CE0000-0x000000000629A000-memory.dmp

          memory/4732-64-0x00000000053A0000-0x00000000053C8000-memory.dmp

          memory/5344-207-0x0000000000DC0000-0x0000000000E6E000-memory.dmp

          memory/5344-208-0x000000001B9F0000-0x000000001BA5C000-memory.dmp

          memory/5344-209-0x000000001BE10000-0x000000001BEA4000-memory.dmp

          memory/5344-210-0x000000001C060000-0x000000001C210000-memory.dmp

          memory/5344-211-0x000000001B9A0000-0x000000001B9BA000-memory.dmp

          memory/5344-212-0x000000001C3A0000-0x000000001C528000-memory.dmp