Analysis

  • max time kernel
    148s
  • max time network
    139s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 12:15

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260708-pfd8ragt5m
  • SHA256 ddc96c4495e288f7f1d3a7e6aa707993ee3f3f32913e82476642cf9054b2ad58
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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:3420
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:4496
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B9B5DB2D1A30E29F92C92E697B7DFB73 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2344
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4A6E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732796 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5352
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI524E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735015 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3180
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5360
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F599D266F2D28193CF8AA2530699CD6F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2776
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1CA89272B076EBE15D66ACD98B50C5A4 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1904
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2880
    • C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-s5blie-relay.screenconnect.com&p=443&s=5b004664-7be6-4e65-953d-e153a9e3878c&k=BgIAAACkAABSU0ExAAgAAAEAAQDh8hD1anaSDCR8rQ1hKi1aM3X%2bES1BKs8kuKU3PMTl9ZtFzsYjxHhr%2bmaEmB1eomik1oXJv3Cx1wvQ7kzC7sAQ7pLhOT1HJHZ42VSRUpccpvnDJ7JgVqh9M4P3SwTezSxbeu4veUU7r033vOlkPKPv997veeulB7gQ3ltHGmIbbc0YKmZjq5J%2fhUHeRvn0uMol54GOFVDonOm5DdHgNJ%2fv0oiyhE104cK%2b6pYXvT4z00c4Tqc6sP62BU4WMY%2ftjqT8sJoRbU9Tugt0E1H4VmnnBH0Smf%2bUGwex0bv9l4OkbHxqELXfFFipRecCnlncbhdO0%2b6JF7zXDuYJOABu0E7C"
      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:2460
      • C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe" "RunRole" "8e589f43-08a5-47ea-a0a6-530e51c99111" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:432
      • C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe" "RunRole" "3e50378e-b5ac-48c6-ab0e-4d8822f8b5d0" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4992

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a139.rbs

          • Path C:\Config.Msi\e59a139.rbs
          • Size 214KB
          • SHA256 9ffa08717ae84b28de7d6b813ad9d96abc327b603d0ddcbf7cda2e1de1686528
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (09c8081ebad847ae)\system.config
          • Size 960B
          • SHA256 a3a3e0e50a8050dbb27cad22a5d9d744536e90c8d808ebbf1502a48e76c05fca
          • MD5 SHA1 SHA512 TLSH

          57C8EDB95DF3F0AD4EE2DC2B8CFD4157

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
          • Size 4KB
          • SHA256 0300e9ddb527990e8b59d06e9ccf3ec2bd92d3bbd0ef4fba69d6336e4195e82d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          57C8EDB95DF3F0AD4EE2DC2B8CFD4157

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
          • Size 342B
          • SHA256 b03b19b554e973f9c723494d385bb3c423b8988bcced8cc8b425a0d5c03a2226
          • MD5 SHA1 SHA512 TLSH

          MSI44DF.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44DF.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A6E.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A6E.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA678.tmp

          • Path C:\Windows\Installer\MSIA678.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59a138.msi

          • Path C:\Windows\Installer\e59a138.msi
          • Size 9.8MB
          • SHA256 ddc96c4495e288f7f1d3a7e6aa707993ee3f3f32913e82476642cf9054b2ad58
          • MD5 SHA1 SHA512 SSDEEP TLSH

          04a5zfm2.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (09c8081ebad847ae)\04a5zfm2.newcfg
          • Size 881B
          • SHA256 67ce79db56a83cd8a6a72d593f68ab273c9dc5ac78026f4a1ca2d43584f79ee3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (09c8081ebad847ae)\user.config
          • Size 683B
          • SHA256 d10a913bab490c1e7160869e5e057310324d5605851e9d92b9fb2665dad8cca7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (09c8081ebad847ae)\user.config
          • Size 520B
          • SHA256 63450d498a917cfe88c193b95b85c4dfa2391ba94a468909343449a6b091e558
          • MD5 SHA1 SHA512 TLSH

          memory/432-212-0x000000001BCC0000-0x000000001BE70000-memory.dmp

          memory/432-211-0x000000001B810000-0x000000001B8A4000-memory.dmp

          memory/432-210-0x0000000002C40000-0x0000000002CAC000-memory.dmp

          memory/432-209-0x00000000009B0000-0x0000000000A5C000-memory.dmp

          memory/432-213-0x00000000012D0000-0x00000000012EA000-memory.dmp

          memory/432-214-0x000000001C000000-0x000000001C188000-memory.dmp

          memory/2344-31-0x0000000005C30000-0x0000000005DE0000-memory.dmp

          memory/2344-23-0x0000000003900000-0x000000000390C000-memory.dmp

          memory/2344-19-0x00000000038B0000-0x00000000038DE000-memory.dmp

          memory/2344-32-0x00000000063A0000-0x000000000695A000-memory.dmp

          memory/2344-27-0x00000000039B0000-0x0000000003A44000-memory.dmp

          memory/2460-155-0x0000000003D90000-0x0000000003F40000-memory.dmp

          memory/2460-190-0x00000000041A0000-0x0000000004276000-memory.dmp

          memory/2460-168-0x0000000003C90000-0x0000000003CE0000-memory.dmp

          memory/2460-188-0x0000000003CE0000-0x0000000003D21000-memory.dmp

          memory/2460-186-0x0000000003FB0000-0x0000000004042000-memory.dmp

          memory/2460-185-0x0000000003F40000-0x0000000003FAC000-memory.dmp

          memory/2460-151-0x0000000003B40000-0x0000000003BD4000-memory.dmp

          memory/2460-145-0x0000000003A80000-0x0000000003A9A000-memory.dmp

          memory/4992-216-0x0000000000AB0000-0x0000000000AF1000-memory.dmp

          memory/5352-62-0x0000000003A40000-0x0000000003A68000-memory.dmp