Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/10/2026, 12:25

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample261003-pl5mwsda99
  • SHA256 b2fbc3aef0cd70fd1d60af6e1c1664f1233f39211d34aead124f511f8ea7dec0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 47 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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:4368
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\aa608af85502e1be\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1796
  • 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:2868
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 7E3A08A8A338F7847ED67A9719C322FE C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240753375 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4700
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9D70.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240754062 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:4712
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA996.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240757406 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1392
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4988
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CB912CDC0A473B341B98B46943411084
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3692
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1BB778A456797129F9737A2A65DCC7D0 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5152
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1920
    • C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hq7plo-relay.screenconnect.com&p=443&s=40307507-3c8c-412b-b787-7cb2ad3fc04f&k=BgIAAACkAABSU0ExAAgAAAEAAQBJKFf3uqMKmPhCwnHPjx%2baRASaxMLIbYodYjNQKzJp4KAmMD%2f7PSf6Zx%2bsu7myNO7OUATDiNQTFYozUx%2bqJCMSAOpDj44b%2fZ3oWDNIMhfzPv%2fsuvSuBGU4sMJc3gShyWMLa8n%2bck4adqKpMS2VjJnauCdAytozN%2fZKbYhppyq8NCQ9bn11WNXIsFo4eMfjozdx2gmV1%2bzO2ksq8rJffyjwOuEekXUuGjzVBm3TWLTRiHajyw2ojhAiN%2fh8KdWJKk%2fYxJGUH1Yoh7Jmq2tj%2fL2I6Q59tYHMcLX%2f%2bhvoTXwYioyor%2fKQYbuEGDikDlkB3yjbFotEVRb9%2fqGkUfMKUvzk"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5372
      • C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe" "RunRole" "8b274994-2ce0-4f90-87f8-aa4a3c647685" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5968
      • C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe" "RunRole" "86ee14ad-b85b-4b12-98c4-18b08193e7eb" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3520

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59f69c.rbs

          • Path C:\Config.Msi\e59f69c.rbs
          • Size 214KB
          • SHA256 f0ec7e86f72a7c83de5da0edb2402d08751eb29f1f93fe2ca979a889e859bf77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (aa608af85502e1be)\system.config
          • Size 976B
          • SHA256 b59df65c735aa1f9257d0ec5f159511681708af9bc5864ab0f19f2dbe2b44d44
          • MD5 SHA1 SHA512 TLSH

          MSI985E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI985E.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9D70.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9D70.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\aa608af85502e1be\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 90eae3df60ed0babd6228906f987aac0a8237b9c257b8ba57c440d4663c8d299
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIFD33.tmp

          • Path C:\Windows\Installer\MSIFD33.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bota4vus.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa608af85502e1be)\bota4vus.newcfg
          • Size 882B
          • SHA256 6265cbfc0948621c64dd566674b60e8fe0132d400f77c73e96c1fcc65daeb80b
          • MD5 SHA1 SHA512 TLSH

          dy4c4ki3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa608af85502e1be)\dy4c4ki3.newcfg
          • Size 683B
          • SHA256 59b84c487c307dd1943bde9eb5967cff418631d35accdb4b57210580b2bbe931
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (aa608af85502e1be)\user.config
          • Size 520B
          • SHA256 7aa5dd2d23293e43b442d25c8876f494e566d137179824b8bb16b36d887fa9a7
          • MD5 SHA1 SHA512 TLSH

          memory/3520-226-0x0000000001940000-0x0000000001981000-memory.dmp

          memory/4368-3-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4368-5-0x00000000063B0000-0x0000000006418000-memory.dmp

          memory/4368-1-0x0000000003AF0000-0x0000000003AF8000-memory.dmp

          memory/4368-11-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4368-2-0x0000000003BC0000-0x0000000003BCC000-memory.dmp

          memory/4368-4-0x0000000006200000-0x000000000635A000-memory.dmp

          memory/4368-7-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4368-6-0x0000000006420000-0x0000000006600000-memory.dmp

          memory/4368-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

          memory/4368-8-0x0000000006BC0000-0x000000000717A000-memory.dmp

          memory/4700-31-0x0000000003B80000-0x0000000003BAE000-memory.dmp

          memory/4700-43-0x0000000006180000-0x0000000006360000-memory.dmp

          memory/4700-39-0x0000000005E40000-0x0000000005F9A000-memory.dmp

          memory/4700-35-0x0000000003BC0000-0x0000000003BCC000-memory.dmp

          memory/4712-73-0x00000000052C0000-0x0000000005328000-memory.dmp

          memory/5372-197-0x00000000046A0000-0x00000000046E1000-memory.dmp

          memory/5372-194-0x00000000049B0000-0x0000000004A4E000-memory.dmp

          memory/5372-150-0x0000000001DC0000-0x0000000001DF0000-memory.dmp

          memory/5372-199-0x0000000004C40000-0x0000000004D16000-memory.dmp

          memory/5372-173-0x0000000004650000-0x00000000046A0000-memory.dmp

          memory/5372-160-0x0000000004730000-0x0000000004910000-memory.dmp

          memory/5372-156-0x00000000043F0000-0x000000000454A000-memory.dmp

          memory/5372-195-0x0000000004A50000-0x0000000004AE2000-memory.dmp

          memory/5968-220-0x000000001B950000-0x000000001B9EE000-memory.dmp

          memory/5968-222-0x000000001C190000-0x000000001C370000-memory.dmp

          memory/5968-219-0x0000000000AC0000-0x0000000000C56000-memory.dmp

          memory/5968-223-0x000000001C570000-0x000000001C6F8000-memory.dmp

          memory/5968-224-0x0000000002E40000-0x0000000002E70000-memory.dmp

          memory/5968-221-0x000000001BE50000-0x000000001BFAA000-memory.dmp