Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 18:26

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260702-w3prbshs5q
  • SHA256 d764daadf73336f3a1d1a8cd2fad7d922a8f60f6588e8ebd649c766f80656fb1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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 15 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 11 IoCs
  • Suspicious use of SendNotifyMessage 9 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:2872
  • 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:1320
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E4B19F5C709E2295B07AC97347517199 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5948
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674187 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4952
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI686A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674953 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4088
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI71F1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240677390 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:904
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2620
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E2A3D2309B3D9D270567A9A952BBF969
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5580
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 488B032737535B3B14BDD8CFB7D9453C E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3328
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4236
    • C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mocfsk-relay.screenconnect.com&p=443&s=ae11737e-3ba1-46cd-a800-b7aa50bd798f&k=BgIAAACkAABSU0ExAAgAAAEAAQABo8d6yjGux7EVbThgrZELXq4t%2fQKEfVZ%2b6irCz1eTiQSHGfVzh01OUh8HfgoReWTOLOngscyy%2f6n4Y4EkAhxYaTCjfTcHVprK75R7EWa2cofdTXdjRb1yBOdrHhyYd1AXyG0xySZHo3LydLFI3xOJzrZafpijm2jr1%2f9RQgyQZwTFMWrQtaLm0PsqH%2bqFY70y7VvHJGEk%2f%2bgf1uwteaH0KV0GaN57B2Cgqwng5A7d6VV5hqP2lNZKTusMKimksaOxOJfSyPA%2fRAFhRshdVg7wrAyrwY4irhEACALs26wBMmfczgWbHIa5tlcGhzSYDP4rwtutLCnuHSpVw%2f2YsFai"
      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:2988
      • C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe" "RunRole" "dc85d654-d606-4693-ae15-5f99f1229549" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2524
      • C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe" "RunRole" "bff7dff5-e875-4eb6-b7d1-f706f02c02d4" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5864

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58b060.rbs

          • Path C:\Config.Msi\e58b060.rbs
          • Size 214KB
          • SHA256 b9249c6ce8b18768174e7dd8046a61158ea72cecbe78163a0067088970922ee3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59e21db38548700a)\system.config
          • Size 962B
          • SHA256 f4df2bd07c239426b1f6d742dcc3caa3695b72cdf4e0e83d2d1098721a3c48ac
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 ae4375295a0f6cd26e9bf451e3d9cd9e3d9b375e47aa8d1ded5bb4a2f51b3d8b
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 af5c5368a6b69e64f07516a640578821d3634334f84f8167d4c0bc98d6577eee
          • MD5 SHA1 SHA512 TLSH

          MSI64D0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64D0.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI686A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI686A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB6AA.tmp

          • Path C:\Windows\Installer\MSIB6AA.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e58b05f.msi

          • Path C:\Windows\Installer\e58b05f.msi
          • Size 9.8MB
          • SHA256 d764daadf73336f3a1d1a8cd2fad7d922a8f60f6588e8ebd649c766f80656fb1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2djrkegm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59e21db38548700a)\2djrkegm.newcfg
          • Size 880B
          • SHA256 13a8e0d316b2d045d631266d5446d05678f3c21691c55a863897f2e016f01ae2
          • MD5 SHA1 SHA512 TLSH

          ht2jjyni.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59e21db38548700a)\ht2jjyni.newcfg
          • Size 880B
          • SHA256 811bb9a39642e7222773b9f75bf2f9b2fce201837b1d0c9c1ec1d1e2622a0765
          • MD5 SHA1 SHA512 TLSH

          pecoou2g.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59e21db38548700a)\pecoou2g.newcfg
          • Size 880B
          • SHA256 b1c8920696d317d1156d34a8b81fcd5f470550052b4e8be9adf71e7bb7c1a737
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59e21db38548700a)\user.config
          • Size 683B
          • SHA256 3f883426dd98da0e3b8a9bc75ae28e6a38bae2cb62aa2859db35f81552e0cfa3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59e21db38548700a)\user.config
          • Size 520B
          • SHA256 6e93c572a1ab8af96c5749aeb142f8c23b8a19eccf93b0acfd8cdcfbc61febb9
          • MD5 SHA1 SHA512 TLSH

          {d89e2f6c-1db4-4359-b3d0-3483ed41acda}_OnDiskSnapshotProp

          • Path \??\Volume{0850fdde-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{d89e2f6c-1db4-4359-b3d0-3483ed41acda}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 407e85329f04b963864e363abda658fa27b61c57cfe8ba04cbff7425ef2eec7d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2524-213-0x0000000002DD0000-0x0000000002DEA000-memory.dmp

          memory/2524-212-0x000000001BCB0000-0x000000001BE60000-memory.dmp

          memory/2524-199-0x000000001BA60000-0x000000001BAF4000-memory.dmp

          memory/2524-197-0x00000000009C0000-0x0000000000A6C000-memory.dmp

          memory/2524-198-0x000000001B610000-0x000000001B67C000-memory.dmp

          memory/2524-215-0x000000001CC10000-0x000000001CD98000-memory.dmp

          memory/2988-156-0x0000000003C40000-0x0000000003DF0000-memory.dmp

          memory/2988-186-0x0000000003BA0000-0x0000000003C0C000-memory.dmp

          memory/2988-187-0x0000000003E90000-0x0000000003F22000-memory.dmp

          memory/2988-146-0x00000000038C0000-0x00000000038DA000-memory.dmp

          memory/2988-191-0x0000000004080000-0x0000000004156000-memory.dmp

          memory/2988-152-0x0000000003980000-0x0000000003A14000-memory.dmp

          memory/2988-189-0x0000000003B30000-0x0000000003B71000-memory.dmp

          memory/2988-169-0x0000000003AE0000-0x0000000003B30000-memory.dmp

          memory/4088-67-0x00000000034D0000-0x00000000034F8000-memory.dmp

          memory/4952-37-0x00000000062F0000-0x00000000068AA000-memory.dmp

          memory/4952-32-0x0000000005930000-0x00000000059C4000-memory.dmp

          memory/4952-28-0x00000000037F0000-0x00000000037FC000-memory.dmp

          memory/4952-36-0x0000000005B80000-0x0000000005D30000-memory.dmp

          memory/4952-24-0x00000000037C0000-0x00000000037EE000-memory.dmp

          memory/5864-246-0x0000000001440000-0x0000000001481000-memory.dmp