Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 18:21

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260701-wzcbtscs2m
  • SHA256 850b93af41c1dd2903f31fed2a6da84e7b1663ff30eb9238a9d62576fd06ad74
  • 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.

  • 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 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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:2516
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\7e56e1eaa0d29df9\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:1492
  • 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:4804
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1752FB0CA97E91226C4B07D385F5E437 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729078 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4548
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI40C9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730421 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1872
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2687.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240789234 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4460
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1048
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 84E9C030DC145C404F4A04C46CFD5684
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4372
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FEBB47EA99DA501AB426FBDD1DCBAF34 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2556
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1800
    • C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-qs1qig-relay.screenconnect.com&p=443&s=34b9d5bd-9566-4bc5-b012-343e2584fec0&k=BgIAAACkAABSU0ExAAgAAAEAAQCJILkzBAh3QakfKoByGpVGRIOQ1qfjPbPgetqeEH835QpcBD46o%2f0p4QszoM0D2wWsOZcFHI7VQllFJBL3SfrICJZt7OOZs4rMYBTITZA0qw%2bXfye743cBf9a0%2f9iXeTsrdlAclLw6m9Uii3nM3aQOkff4gdt8P1mgaJ%2fljiGv07d%2b%2baM4o%2fz9jL3HDuxuOQg50e4E0OGjR6MDu2dVq6hBJKgkNjjhrgqJTL8q7AySLWXsVfCYJNaaSd6eLVmfOxED%2bJfdU9NhXJn2iafpGh38fOcJ4Awjnopxk21cPkno4Ys5tsR9%2fseQlo28kGK40a1gAsp7Dx%2fAGIt5YnKWvWfx"
      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:5772
      • C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe" "RunRole" "6277b9d9-6be8-4eb7-af83-fd9fa2ff31c7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5592
      • C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe" "RunRole" "2491f94f-8177-431b-9264-83c9a61fb273" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3384

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a8966.rbs

          • Path C:\Config.Msi\e5a8966.rbs
          • Size 214KB
          • SHA256 fe0c461a8b518d286e251b17cac3bef55093df540efb3f32997c572707f5441f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7e56e1eaa0d29df9)\system.config
          • Size 964B
          • SHA256 a5cdc69eca4641400d0fbd5bff612b8514fe017c875d013108aa45a4f61c368d
          • MD5 SHA1 SHA512 TLSH

          MSI3B3A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B3A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI40C9.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI40C9.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\7e56e1eaa0d29df9\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 2b62a56295608d545afeb988feca0b2904054d7359fee1d065f33b6f95d28e4c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI906B.tmp

          • Path C:\Windows\Installer\MSI906B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0fqrqaz4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7e56e1eaa0d29df9)\0fqrqaz4.newcfg
          • Size 683B
          • SHA256 c0eb4e224e2d872ae3a8364b008e4f55d6c4104069833003fe55b2e1d6f8d333
          • MD5 SHA1 SHA512 TLSH

          snxyctia.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7e56e1eaa0d29df9)\snxyctia.newcfg
          • Size 882B
          • SHA256 c065dd3ecf65f6c0a8954e672cfaeef1295f23f9ccff8b1fdcb84b76f68d57f3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7e56e1eaa0d29df9)\user.config
          • Size 520B
          • SHA256 5f14c84e27e375fe60ab16bd3d52e216df2ac0796cb7bb067cb037065de2f4af
          • MD5 SHA1 SHA512 TLSH

          memory/1872-76-0x0000000005210000-0x0000000005238000-memory.dmp

          memory/2516-0-0x0000000074312000-0x0000000074313000-memory.dmp

          memory/2516-1-0x00000000022A0000-0x00000000022A8000-memory.dmp

          memory/2516-12-0x0000000074300000-0x0000000074ABC000-memory.dmp

          memory/2516-2-0x00000000022D0000-0x00000000022DC000-memory.dmp

          memory/2516-3-0x0000000074300000-0x0000000074ABC000-memory.dmp

          memory/2516-4-0x0000000006320000-0x00000000063B4000-memory.dmp

          memory/2516-10-0x0000000074300000-0x0000000074ABC000-memory.dmp

          memory/2516-7-0x0000000074300000-0x0000000074ABC000-memory.dmp

          memory/2516-5-0x00000000062A0000-0x00000000062C8000-memory.dmp

          memory/2516-6-0x00000000063B0000-0x0000000006560000-memory.dmp

          memory/2516-8-0x0000000006B20000-0x00000000070DA000-memory.dmp

          memory/4548-46-0x0000000005AB0000-0x0000000005C60000-memory.dmp

          memory/4548-42-0x0000000005860000-0x00000000058F4000-memory.dmp

          memory/4548-38-0x00000000057B0000-0x00000000057BC000-memory.dmp

          memory/4548-34-0x0000000005770000-0x000000000579E000-memory.dmp

          memory/5592-219-0x0000000000E40000-0x0000000000EEC000-memory.dmp

          memory/5592-221-0x000000001BB00000-0x000000001BB6C000-memory.dmp

          memory/5592-225-0x000000001C410000-0x000000001C598000-memory.dmp

          memory/5592-224-0x0000000001760000-0x000000000177A000-memory.dmp

          memory/5592-223-0x000000001C0D0000-0x000000001C280000-memory.dmp

          memory/5592-222-0x000000001BB70000-0x000000001BC04000-memory.dmp

          memory/5772-160-0x00000000048F0000-0x0000000004984000-memory.dmp

          memory/5772-154-0x00000000022B0000-0x00000000022CA000-memory.dmp

          memory/5772-196-0x0000000004DB0000-0x0000000004E1C000-memory.dmp

          memory/5772-197-0x0000000004EC0000-0x0000000004F52000-memory.dmp

          memory/5772-201-0x00000000050B0000-0x0000000005186000-memory.dmp

          memory/5772-199-0x0000000004D40000-0x0000000004D81000-memory.dmp

          memory/5772-164-0x0000000004B40000-0x0000000004CF0000-memory.dmp

          memory/5772-177-0x0000000004CF0000-0x0000000004D40000-memory.dmp