Analysis

  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/07/2026, 00:22

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260728-apd7saea86
  • SHA256 4fe08036b8c648c16e98437c4bc9611de70829022697f80cce5b978e42cc415e
  • 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.

  • 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 4 IoCs
  • Loads dropped DLL 50 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 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:2796
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\76232f7f8cf18d62\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:5044
  • 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:2804
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F9E146D70A4A0A2B0E87B8D7BDF3AF13 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1380
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240740593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2392
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6C8C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741546 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:376
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1ADE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240786203 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4516
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2664
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B80EC23F738961514487E2237EF0A4D2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5824
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C5F7A062D458CAB3948C315F14928B76 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1172
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1312
    • C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rwzgfh-relay.screenconnect.com&p=443&s=f28ca397-2677-47af-97a8-e7e04edcae39&k=BgIAAACkAABSU0ExAAgAAAEAAQDto35eczTgCyq46Ffkdiwcgo89fdZsbcbw3LneAdXWFOtYQcL8BX3ddDnSybXw6j535scNgfnN11Nre5Oah0fWexHbIbJ2SRexERcDxakApHttMQm4gp0jTimMQMyd0umPTOmgaB0ugk54hrxk6eEOKwVCku1EEG6OMasin4zDloG94RYgBIOUEN1a8W3I6D4zd0jJzCMNZj9RM3HeuQhTYEKrxxit2bzz7O19EKcgvnQf478j3teIjC85YbjPIsuy0KXo3plX5uUeORTXqjSYCys9ptNQbEF250Unj0lLgchDOdjGjVp719OdS1tPvAf2pq4m8AL4RVCJPoX9alHK&c=conservairrigation&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1452
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 1336
        2⤵
        • Program crash
        PID:4960
    • C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rwzgfh-relay.screenconnect.com&p=443&s=f28ca397-2677-47af-97a8-e7e04edcae39&k=BgIAAACkAABSU0ExAAgAAAEAAQDto35eczTgCyq46Ffkdiwcgo89fdZs%2bcbw3LneAdXWFOtYQcL8BX3ddDnSy%2bXw6j535scNgfnN11Nre5Oah0fWexH%2bI%2bJ2SRexERcDxakApHttMQm4gp0jTimMQMyd0umPTOmgaB0ugk54hrxk6eEOKwVCku1EEG6OMasin4zDloG94RYgBIOUEN1a8W3I6D4zd0jJzCMNZj9RM3HeuQhTYEKrxxit2bzz7O19EKcgvnQf478j3teIjC85YbjPIsuy0KXo3plX5uUeORTXqjSYCys9ptNQbEF250Unj0lLgchDOdjGjVp719OdS1tPvAf2pq4m8AL4RVCJPoX9alHK&c=conservairrigation&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:3536
      • C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.WindowsClient.exe" "RunRole" "3bd462c9-44f4-4090-a133-fe5f7037bc44" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2496
      • C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.WindowsClient.exe" "RunRole" "34dfb650-07b3-44c2-b855-5a5623d9e9d7" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1452 -ip 1452
      1⤵
        PID:5888

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            e5a75ce.rbs

            • Path C:\Config.Msi\e5a75ce.rbs
            • Size 214KB
            • SHA256 87026514a94d095f7196d6859a095c035ee2fb20e5a29067fd8acdf3ad1e98e5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (76232f7f8cf18d62)\system.config
            • Size 952B
            • SHA256 39e56280d6d26a760a0ab86ea1226b97b4269214fcb2fee34ac02f020e585875
            • MD5 SHA1 SHA512 TLSH

            MSI6817.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp
            • Size 1.1MB
            • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp-\ScreenConnect.Core.dll
            • Size 567KB
            • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6817.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8C.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI6C8C.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\76232f7f8cf18d62\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 c0a856762ad72c64eca7711705db9a12c82c4014fcdc3b9b2e26edbb2e1b317a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI7D02.tmp

            • Path C:\Windows\Installer\MSI7D02.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            lmrcnjim.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76232f7f8cf18d62)\lmrcnjim.newcfg
            • Size 683B
            • SHA256 dc24891e31b421be515b49a86a4e3da7b74978f10f0bc4593cd9110ae054c318
            • MD5 SHA1 SHA512 TLSH

            lxubm42n.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76232f7f8cf18d62)\lxubm42n.newcfg
            • Size 884B
            • SHA256 a02af4140209d47b5c8e395b343a5d34f37d97474b34ade3fdab71e4f0911666
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76232f7f8cf18d62)\user.config
            • Size 520B
            • SHA256 61888efb0465f05d7984d0d0ee42c52de9beed8b276923b5caf8dbb2fbb49dd7
            • MD5 SHA1 SHA512 TLSH

            memory/376-75-0x0000000005310000-0x0000000005338000-memory.dmp

            memory/1452-173-0x00000000059D0000-0x0000000005B80000-memory.dmp

            memory/1452-151-0x0000000003320000-0x000000000333A000-memory.dmp

            memory/1452-160-0x0000000005780000-0x0000000005814000-memory.dmp

            memory/2392-41-0x0000000005EC0000-0x0000000005F54000-memory.dmp

            memory/2392-37-0x0000000003E00000-0x0000000003E0C000-memory.dmp

            memory/2392-45-0x0000000006110000-0x00000000062C0000-memory.dmp

            memory/2392-33-0x0000000003DC0000-0x0000000003DEE000-memory.dmp

            memory/2496-221-0x0000000000640000-0x00000000006EE000-memory.dmp

            memory/2496-224-0x000000001B720000-0x000000001B7B4000-memory.dmp

            memory/2496-225-0x000000001B970000-0x000000001BB20000-memory.dmp

            memory/2496-223-0x000000001B2F0000-0x000000001B35C000-memory.dmp

            memory/2496-226-0x0000000002850000-0x000000000286A000-memory.dmp

            memory/2496-227-0x000000001BCB0000-0x000000001BE38000-memory.dmp

            memory/2796-7-0x0000000005D60000-0x0000000005F10000-memory.dmp

            memory/2796-2-0x0000000001C90000-0x0000000001C9C000-memory.dmp

            memory/2796-11-0x0000000074E30000-0x00000000755EC000-memory.dmp

            memory/2796-3-0x0000000074E30000-0x00000000755EC000-memory.dmp

            memory/2796-13-0x0000000074E30000-0x00000000755EC000-memory.dmp

            memory/2796-1-0x0000000001C20000-0x0000000001C28000-memory.dmp

            memory/2796-4-0x0000000005B70000-0x0000000005C04000-memory.dmp

            memory/2796-5-0x0000000074E30000-0x00000000755EC000-memory.dmp

            memory/2796-8-0x0000000074E30000-0x00000000755EC000-memory.dmp

            memory/2796-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

            memory/2796-6-0x0000000003620000-0x0000000003648000-memory.dmp

            memory/2796-9-0x00000000064D0000-0x0000000006A8A000-memory.dmp

            memory/3536-187-0x0000000004980000-0x00000000049D0000-memory.dmp

            memory/3536-208-0x0000000004F00000-0x0000000004FD6000-memory.dmp

            memory/3536-207-0x0000000004B90000-0x0000000004BD1000-memory.dmp

            memory/3536-206-0x0000000004D10000-0x0000000004DA2000-memory.dmp

            memory/3536-205-0x0000000004C00000-0x0000000004C6C000-memory.dmp