Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 00:30

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260703-atts2ady6p
  • SHA256 039a71b16651cb8d9934f48277ef0e573b0ab343a2a46f5ef099c54d62b10f5b
  • 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.

  • 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:5360
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\9397224f2d14d377\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:4840
  • 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:5288
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E8074695C30B0E3491AB626C5ABFFA51 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6076
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240697343 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4480
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC34C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240698203 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:556
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC8EB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240699765 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5832
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FDE560D2DE47429664A01CCDA2CC373B
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2960
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding BC6E690E67C83F6C41AEAEB2025A3BD8 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5036
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5480
    • C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xeve2l-relay.screenconnect.com&p=443&s=982c0d0c-47a0-4b6b-bd74-67785951b4f7&k=BgIAAACkAABSU0ExAAgAAAEAAQD9tj9m6lEBzGV6tBTeAGZiaOAafamJwWklQNsS%2bnSk1RHlb2whjOWesA4rrm%2bWXZNzMvd6ZNo8NXJ3RY%2fFnyZvzdELMskXhRoqGszZLlgFRyTa%2fQN21Y0QdhlaPwWgHwvunm%2b%2fEATpHDhJKVlnmVy6AH2CKka47FVlqCQMVupYPd3WmbhSvawIq0n6F7Am8SeMlcrewLZROBXW53IGu2ezUQcByealQCP5QdcA5wCr6rmQNR4Ou5dOyK9jH5ije3Wmj5h%2fpD4ry77ckkKEi7%2fpfKd1Z%2ftnn70HQVV2zR46O%2fhh3iu%2bCB8kPyjYTZlWXgMq01wsfryd%2bI4iAhsjLmPF&c=Priest&c=&c=&c=&c=&c=&c=&c="
      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:1044
      • C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe" "RunRole" "15c1e525-1097-4fe0-8341-ce5f7dd1da33" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2888
      • C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe" "RunRole" "b53681a7-548e-4b18-b1e1-d49bb9c8c66a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3596

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e590b23.rbs

          • Path C:\Config.Msi\e590b23.rbs
          • Size 214KB
          • SHA256 ebe54466bc699356f0d0756a82183348d822a5b9a398371458fa1eb3258734a4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9397224f2d14d377)\system.config
          • Size 968B
          • SHA256 bc0556a4c18f851df553870fb7e77dff23cd976b30896a908306d188de39f851
          • MD5 SHA1 SHA512 TLSH

          MSIBF82.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBF82.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC34C.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC34C.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\9397224f2d14d377\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 d29fd3a1313f5a307b7c7f4a056fd6074b3a4652aedb39711b92fcca3c37ac37
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI10C0.tmp

          • Path C:\Windows\Installer\MSI10C0.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          04myps01.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9397224f2d14d377)\04myps01.newcfg
          • Size 882B
          • SHA256 751c273253c3e1d6e54bbd6e427d2d42ff5d5f4594be167a446f537c89fc6f29
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9397224f2d14d377)\user.config
          • Size 683B
          • SHA256 79ce43e7b3762fc82b6c713d7e339d30f1d03669c9e1d68a115d53f29258f2ce
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9397224f2d14d377)\user.config
          • Size 520B
          • SHA256 55bbd70be0bb30982996400c5d66deae1de8a2438fed3adfb41f5106b87ac6d1
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 4f3fbb5d2c42ff04c3c1eaf1d478621c9d24dafa890efc7956efa6c61cf2ade0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {01ae2a6c-7bc7-4fee-a6ee-a5d2603c624d}_OnDiskSnapshotProp

          • Path \??\Volume{3b2d0b73-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{01ae2a6c-7bc7-4fee-a6ee-a5d2603c624d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 c94d69e5fd7e6c8a764ad2ee2c87768e80653c771f45c4053eb0548ec53096d8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/556-76-0x0000000005C80000-0x0000000005CA8000-memory.dmp

          memory/1044-196-0x00000000046B0000-0x0000000004742000-memory.dmp

          memory/1044-195-0x00000000043C0000-0x000000000442C000-memory.dmp

          memory/1044-155-0x0000000001B70000-0x0000000001B8A000-memory.dmp

          memory/1044-178-0x0000000004300000-0x0000000004350000-memory.dmp

          memory/1044-165-0x0000000004460000-0x0000000004610000-memory.dmp

          memory/1044-161-0x00000000041C0000-0x0000000004254000-memory.dmp

          memory/1044-200-0x00000000048A0000-0x0000000004976000-memory.dmp

          memory/1044-198-0x0000000004350000-0x0000000004391000-memory.dmp

          memory/2888-225-0x00000000015A0000-0x00000000015E1000-memory.dmp

          memory/2888-223-0x0000000001580000-0x000000000159A000-memory.dmp

          memory/2888-222-0x000000001C010000-0x000000001C1C0000-memory.dmp

          memory/2888-224-0x000000001C350000-0x000000001C4D8000-memory.dmp

          memory/2888-221-0x000000001BDC0000-0x000000001BE54000-memory.dmp

          memory/2888-220-0x0000000002E70000-0x0000000002EDC000-memory.dmp

          memory/2888-219-0x0000000000C60000-0x0000000000D0C000-memory.dmp

          memory/4480-34-0x0000000003740000-0x000000000376E000-memory.dmp

          memory/4480-38-0x0000000003710000-0x000000000371C000-memory.dmp

          memory/4480-46-0x0000000005AB0000-0x0000000005C60000-memory.dmp

          memory/4480-42-0x0000000003810000-0x00000000038A4000-memory.dmp

          memory/5360-0-0x0000000074D22000-0x0000000074D23000-memory.dmp

          memory/5360-3-0x00000000058D0000-0x0000000005964000-memory.dmp

          memory/5360-2-0x0000000001A50000-0x0000000001A5C000-memory.dmp

          memory/5360-1-0x0000000001990000-0x0000000001998000-memory.dmp

          memory/5360-6-0x00000000059F0000-0x0000000005BA0000-memory.dmp

          memory/5360-5-0x0000000074D10000-0x00000000754CC000-memory.dmp

          memory/5360-8-0x0000000006160000-0x000000000671A000-memory.dmp

          memory/5360-7-0x0000000074D10000-0x00000000754CC000-memory.dmp

          memory/5360-4-0x0000000003540000-0x0000000003568000-memory.dmp

          memory/5360-10-0x0000000074D10000-0x00000000754CC000-memory.dmp

          memory/5360-11-0x0000000074D10000-0x00000000754CC000-memory.dmp