Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 00:14

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260723-ajvmkseb59
  • SHA256 f231d42a5dccfc512674f6fc6d5445e0f5dbd4d11f19f7e1ef976045e0c71b6e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 12 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 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 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:2720
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\aa0708ab58a31f6b\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1924
  • 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:1076
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 05DAEF0B52756240C99AC85066AF92CB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICAAE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240700656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1136
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID02D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240701515 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2036
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID7FE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240703687 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3308
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2648
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 534C6259FD98911EB2DB210BD7BFA2A0
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4748
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B999892C87E03CD1E9B182FC5F43160B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2060
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2696
    • C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-zggsoa-relay.screenconnect.com&p=443&s=951219bb-ec56-4087-ad04-10be7c987c0a&k=BgIAAACkAABSU0ExAAgAAAEAAQA1wZcXUSEe4vnzar9cJ8KQYYTykuFpXqKTQ4yS72trrIxbTVKMH6ivlHc4f47NP7fdQdFfk8aQbS7gRebd6a751AEVrJ13ZYgbwSg2zVaa3mEmb6bgV8hhlFs5WMkalIHVmoINVhcEPBwVvDy6GzPTtEb4wG5PqJtRKoNLK8mecjsWLF04bhUqV7vYNMYHQVmtyNzbiIVOsJ850ibHGvITLYx1fG5Tzkfhd3boWbKn9EitkH8hQTRsPPcdpHdf4jPvzkAf7Q1E8IO6EtKrWLbCujGzbS2OZ6taQS2MGiVnJOmSeZpcQ6df8YJkHXEfBJdwcvz30Q30vNJzqUfQcPTM"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:5788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5788 -s 1336
        2⤵
        • Program crash
        PID:5264
    • C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-zggsoa-relay.screenconnect.com&p=443&s=951219bb-ec56-4087-ad04-10be7c987c0a&k=BgIAAACkAABSU0ExAAgAAAEAAQA1wZcXUSEe4vnzar9cJ8KQYYTykuFpXqKTQ4yS72trrIx%2bTVKMH6ivlHc4%2f47NP7fdQdFfk8aQ%2bS7gRe%2bd6a751AEVrJ13ZYg%2bwSg2zVaa3mEmb6%2bgV8hhlFs5WMkalIHVmoINVhcEPBwVvDy6GzPTtEb4wG5PqJtRKoNLK8mecjsWLF04bhUqV7vYNMYHQVmtyNz%2biIVOsJ850ibHGvITLYx1%2fG5Tzkfhd3boW%2bKn9EitkH8hQTRsPPcdpHd%2f4jPvzkA%2f7Q1E8IO6EtKrWL%2bCujGzbS2OZ6taQS2MGiVnJOmSeZpcQ6df8YJkHXE%2fBJdwcvz30Q30vNJzqU%2fQcPTM"
      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:5152
      • C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "88398594-9945-4e80-869f-13a78ba64445" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5024
      • C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "833abeeb-05b4-4621-b318-3d7dc0f3f1a5" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4636
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5788 -ip 5788
      1⤵
        PID:3172

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            e5934a4.rbs

            • Path C:\Config.Msi\e5934a4.rbs
            • Size 214KB
            • SHA256 eb6a8b94cf767bf0039b5107fa140d9643d62acd2b3814b4d89d725df96d05ff
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (aa0708ab58a31f6b)\system.config
            • Size 972B
            • SHA256 8a7158cb58f7ad5dac8589e7813e4e44a23106fffe16fa0653d90729ee61a7cb
            • MD5 SHA1 SHA512 TLSH

            MSICAAE.tmp

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

            Microsoft.Deployment.WindowsInstaller.dll

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

            ScreenConnect.Core.dll

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

            ScreenConnect.InstallerActions.dll

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

            ScreenConnect.Windows.dll

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

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSID02D.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSID02D.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\aa0708ab58a31f6b\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 fb529e992d2ec48abb1b696ec39290aaa1d9cbaf77d7b48d6ffeec392851c43d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI3D5E.tmp

            • Path C:\Windows\Installer\MSI3D5E.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            cbus0fad.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa0708ab58a31f6b)\cbus0fad.newcfg
            • Size 683B
            • SHA256 da4315f900a176adf935e4b248d4f30dd316a4b31408bbe9763e8891aeec2042
            • MD5 SHA1 SHA512 TLSH

            ksezeipl.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa0708ab58a31f6b)\ksezeipl.newcfg
            • Size 884B
            • SHA256 2549eca980060c64d08b70bee52e7699fb9ec9447cc0d16fa526e4ce3ee4da85
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa0708ab58a31f6b)\user.config
            • Size 520B
            • SHA256 f6e89490111afad10de6795cb70f4953a08e56623e10dbad918920293ea08bd0
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa0708ab58a31f6b)\user.config
            • Size 884B
            • SHA256 99f80585dc3aa382f5414008dc27bbe2ec2992618bc247c45b126e690a79f937
            • MD5 SHA1 SHA512 TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 26.1MB
            • SHA256 f19c223d183d3c915cc833cc838e54af90436c5474eb1bb7d6b337e6298711f4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {ff778583-bd19-45ef-a237-f89df8e14fba}_OnDiskSnapshotProp

            • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{ff778583-bd19-45ef-a237-f89df8e14fba}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 b4ff1094b48bef6e3c7751e7aced2baf3fefbbeffd5dc01c8d8371c7a4050082
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1136-45-0x0000000006110000-0x00000000062C0000-memory.dmp

            memory/1136-41-0x0000000005EC0000-0x0000000005F54000-memory.dmp

            memory/1136-37-0x0000000003D30000-0x0000000003D3C000-memory.dmp

            memory/1136-33-0x0000000003DE0000-0x0000000003E0E000-memory.dmp

            memory/2036-75-0x0000000003490000-0x00000000034B8000-memory.dmp

            memory/2720-2-0x00000000036D0000-0x00000000036DC000-memory.dmp

            memory/2720-1-0x00000000035F0000-0x00000000035F8000-memory.dmp

            memory/2720-11-0x00000000743D0000-0x0000000074B8C000-memory.dmp

            memory/2720-3-0x0000000005D10000-0x0000000005DA4000-memory.dmp

            memory/2720-9-0x00000000743D0000-0x0000000074B8C000-memory.dmp

            memory/2720-4-0x00000000743D0000-0x0000000074B8C000-memory.dmp

            memory/2720-7-0x0000000006640000-0x0000000006BFA000-memory.dmp

            memory/2720-0-0x00000000743E2000-0x00000000743E3000-memory.dmp

            memory/2720-8-0x00000000743D0000-0x0000000074B8C000-memory.dmp

            memory/2720-5-0x0000000003760000-0x0000000003788000-memory.dmp

            memory/2720-13-0x00000000743D0000-0x0000000074B8C000-memory.dmp

            memory/2720-6-0x0000000005ED0000-0x0000000006080000-memory.dmp

            memory/4636-237-0x0000000002AA0000-0x0000000002AE1000-memory.dmp

            memory/4636-240-0x000000001CFD0000-0x000000001D0C0000-memory.dmp

            memory/5024-220-0x0000000000250000-0x00000000002FE000-memory.dmp

            memory/5024-225-0x000000001B880000-0x000000001BA08000-memory.dmp

            memory/5024-224-0x0000000000C80000-0x0000000000C9A000-memory.dmp

            memory/5024-223-0x000000001B540000-0x000000001B6F0000-memory.dmp

            memory/5024-221-0x00000000026A0000-0x000000000270C000-memory.dmp

            memory/5024-222-0x000000001B2F0000-0x000000001B384000-memory.dmp

            memory/5152-186-0x0000000003FE0000-0x0000000004030000-memory.dmp

            memory/5152-203-0x0000000004260000-0x00000000042CC000-memory.dmp

            memory/5152-205-0x00000000041F0000-0x0000000004231000-memory.dmp

            memory/5152-206-0x0000000004560000-0x0000000004636000-memory.dmp

            memory/5152-204-0x0000000004370000-0x0000000004402000-memory.dmp

            memory/5152-171-0x0000000004040000-0x00000000041F0000-memory.dmp

            memory/5788-161-0x0000000005170000-0x0000000005204000-memory.dmp

            memory/5788-154-0x0000000005060000-0x000000000507A000-memory.dmp