Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/07/2026, 00:09

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260717-afv4yaby2x
  • SHA256 c7aa41b3ee304241382d00a7651c1534a108f4d1ba8161584e2b829432eeb409
  • 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:2200
  • 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:4068
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0CD3EE5CE2EF80757AAC1CBFF5AD7C08 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4072
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725453 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1564
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3281.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726687 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1012
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI39C5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728734 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5412
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5920
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8DCBA2FEDD699E3EA7A5531790B6D055
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3616
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0EEA67F9BBE86A1F2B6A45054482BAA3 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2836
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3324
    • C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-fq9g0v-relay.screenconnect.com&p=443&s=fa98b17f-eae7-4ae4-b69d-bf4675f2a43a&k=BgIAAACkAABSU0ExAAgAAAEAAQARmPbA3WBPeL9YhFZPO2Nzi1swSgyCABq5hHa1i%2fyVXSeO50Sq0F8DqqdYqw%2fbFCGAdU6xfR9amk4P4NXJ%2f%2fOYiyEGc6YTWBs7xCrsMCbOn80oZ8M5vGneNP8o9MD4Ni%2fEu%2f3b%2btWZ6MPWFxJ0FbdgD4Vf03nZE7OS6rqtUtIKb%2bZHyAlcTzU%2fMF1TTEDaV6oI%2bPF2UUpVEg%2bZxH2NiMKx6uDSxJy%2bwETKtMEfX6NE7LJ7I1jLeTxFBD9ll8VasFuZrh6fgAZlQIYctxBBmSA3QvGc4YfhGECP%2f6jL9Yg4HoGRteI1l9nLNpDsTa2wrQZ%2bEeAM4Gdhuwbx2aSSDdbD"
      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:2840
      • C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe" "RunRole" "9d675a92-221a-4594-b032-b939710d0874" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4196
      • C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe" "RunRole" "ac6adf60-a992-4d0c-b06c-3728aed8ad45" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3440

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e598024.rbs

          • Path C:\Config.Msi\e598024.rbs
          • Size 214KB
          • SHA256 207a9d2c20e3d3a7f237a852c81176476ba11c295edbf9233d03e159b3efa946
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e724acd0b232e4d)\system.config
          • Size 972B
          • SHA256 ed6b8a001cf61b14491460ac6302ae0290c0fa9a60fefe11e5190b88301c1c3e
          • MD5 SHA1 SHA512 TLSH

          MSI2C65.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2C65.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3281.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3281.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI86CB.tmp

          • Path C:\Windows\Installer\MSI86CB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e598023.msi

          • Path C:\Windows\Installer\e598023.msi
          • Size 9.8MB
          • SHA256 c7aa41b3ee304241382d00a7651c1534a108f4d1ba8161584e2b829432eeb409
          • MD5 SHA1 SHA512 SSDEEP TLSH

          gyw0yozn.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e724acd0b232e4d)\gyw0yozn.newcfg
          • Size 683B
          • SHA256 ce32c9857b7c171d1e4bbde2830aefb16aed61ebc99d0497fb03a6f5529ead76
          • MD5 SHA1 SHA512 TLSH

          odasmqdn.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e724acd0b232e4d)\odasmqdn.newcfg
          • Size 884B
          • SHA256 bfe3f32f05d95008ba0314881d86964565ae30b214fdd4982722d6523309e93c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e724acd0b232e4d)\user.config
          • Size 520B
          • SHA256 a205ded52da5fec166918a1b6c50b8e5e6eb69829962305b44da90f691e3756f
          • MD5 SHA1 SHA512 TLSH

          {b2b781cf-7bfc-4e90-9838-0237ca724ad1}_OnDiskSnapshotProp

          • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{b2b781cf-7bfc-4e90-9838-0237ca724ad1}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 45d0bba30fa9ec531345fad16e0260d709f07204a4b50e518dfb4713640f93ec
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1012-64-0x0000000003FF0000-0x0000000004018000-memory.dmp

          memory/1564-34-0x00000000068A0000-0x0000000006E5A000-memory.dmp

          memory/1564-33-0x0000000006130000-0x00000000062E0000-memory.dmp

          memory/1564-21-0x0000000005D90000-0x0000000005DBE000-memory.dmp

          memory/1564-25-0x0000000003D70000-0x0000000003D7C000-memory.dmp

          memory/1564-29-0x0000000005EE0000-0x0000000005F74000-memory.dmp

          memory/2840-151-0x0000000004030000-0x00000000041E0000-memory.dmp

          memory/2840-147-0x0000000003DE0000-0x0000000003E74000-memory.dmp

          memory/2840-183-0x0000000003FB0000-0x000000000401C000-memory.dmp

          memory/2840-188-0x0000000004470000-0x0000000004546000-memory.dmp

          memory/2840-164-0x0000000003EF0000-0x0000000003F40000-memory.dmp

          memory/2840-141-0x0000000003CE0000-0x0000000003CFA000-memory.dmp

          memory/2840-186-0x0000000003F40000-0x0000000003F81000-memory.dmp

          memory/2840-184-0x0000000004280000-0x0000000004312000-memory.dmp

          memory/4196-207-0x0000000000120000-0x00000000001CC000-memory.dmp

          memory/4196-209-0x000000001B1C0000-0x000000001B254000-memory.dmp

          memory/4196-210-0x000000001B410000-0x000000001B5C0000-memory.dmp

          memory/4196-211-0x0000000000B50000-0x0000000000B6A000-memory.dmp

          memory/4196-212-0x000000001C370000-0x000000001C4F8000-memory.dmp

          memory/4196-208-0x0000000002450000-0x00000000024BC000-memory.dmp