Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260706-ph5tgse14x
  • SHA256 f2b90989ef8beab4c627ecdc4182ccea0c8b80db2f4b1683dda5c68ad4f41388
  • 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 6 IoCs
  • Suspicious use of SendNotifyMessage 4 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:3468
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fe008c0464a300b2\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:1444
  • 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:5176
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C2DCA8D68B03B38844B03D97E1F34DD8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4216
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719796 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1916
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1BDC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720890 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4284
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI21D8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722640 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6128
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1312
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 65C39B28E405786FF23A802F9549A908
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1220
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FEE9F0D66AAA6AEDF42DC108CE5D2C5C E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1544
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2888
    • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-yepasb-relay.screenconnect.com&p=443&s=50f57f5f-71eb-4811-a33d-5d0917aab0d3&k=BgIAAACkAABSU0ExAAgAAAEAAQC1%2bBSeI9h%2b5ALQP5CwiB0BCChr%2bkndn0vYJANrgJJ1UZ4TVQLI0llFsa5ZDtAkyKGC6d451HWLnI8TMPWy40XqH%2bQTaxkBdx83FJv2AwXHPh6EiJ48gef7hprUSHsyUyTGd2eGZI8h41atZonW4lUh1KHzUk96GJZtr13zsAtnk3qaEWSqik6IGeL4EuIhrUsNTMPlqT1L%2bP11FAIFkj%2fxJXgR%2fzQCV75oJQe6hK2yhmpg9H1LQR7cJkagmz9rhd0Jbfj49dcsdKLLksN81dgC%2bnzb7RALZUaSrAIO%2bx0Kx00r19GEe0Ik7JLyCkzYj8550is9hPnbI5gjSnjoh2Hu&t=6SIX"
      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:4880
      • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe" "RunRole" "efcb3559-064f-4a49-9b92-b6175e695d20" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3808
      • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe" "RunRole" "93c444be-4518-4c14-aa67-412509ec16da" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2928

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59773b.rbs

          • Path C:\Config.Msi\e59773b.rbs
          • Size 214KB
          • SHA256 eebd12bb28570c8de281d7b4fa35cbf946751cdc261d6f32a7157e385979ed69
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\system.config
          • Size 962B
          • SHA256 f5402616fd5e2d5dd03e9244a4f9bdc5388153ae5878bfb920ed4647cc470f8f
          • MD5 SHA1 SHA512 TLSH

          MSI16BA.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI16BA.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1BDC.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1BDC.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fe008c0464a300b2\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 258e71b6d80c6fc3924ec055875f7bd4ded76267cb05c5ad57bc3d64c965303e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7E8E.tmp

          • Path C:\Windows\Installer\MSI7E8E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          n2zsoefi.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\n2zsoefi.newcfg
          • Size 883B
          • SHA256 ce87510986d787c25b4c54715c5d2645474993e9139e0f9a427b3773f460c498
          • MD5 SHA1 SHA512 TLSH

          osndxsg0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\osndxsg0.newcfg
          • Size 683B
          • SHA256 366a2fa36b925d7c07f07dc9f3b5cad1abce4f3f45f850c49a2d039fc81141c7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\user.config
          • Size 520B
          • SHA256 7a7d35204c9b0fcbef49d1d329ea321faa0b928e2303457494d9644fdfb74dd2
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 e79baa302bba76e1049549390392c500abdb0eb3e3ea3399c8b21e51e299b9d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {deeaba23-68a8-4565-9c89-d60dafc0b17a}_OnDiskSnapshotProp

          • Path \??\Volume{3b2d0b73-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{deeaba23-68a8-4565-9c89-d60dafc0b17a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 19d3b67a067a14b3d019ffc1715d22398f747929bd91729f065f27cf06e132a8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1916-47-0x0000000005840000-0x00000000059F0000-memory.dmp

          memory/1916-39-0x00000000034D0000-0x00000000034DC000-memory.dmp

          memory/1916-35-0x00000000026B0000-0x00000000026DE000-memory.dmp

          memory/1916-43-0x00000000055F0000-0x0000000005684000-memory.dmp

          memory/3468-0-0x0000000074702000-0x0000000074703000-memory.dmp

          memory/3468-3-0x00000000746F0000-0x0000000074EAC000-memory.dmp

          memory/3468-6-0x0000000005960000-0x0000000005B10000-memory.dmp

          memory/3468-9-0x00000000746F0000-0x0000000074EAC000-memory.dmp

          memory/3468-13-0x00000000746F0000-0x0000000074EAC000-memory.dmp

          memory/3468-4-0x00000000058A0000-0x0000000005934000-memory.dmp

          memory/3468-8-0x00000000746F0000-0x0000000074EAC000-memory.dmp

          memory/3468-7-0x00000000060D0000-0x000000000668A000-memory.dmp

          memory/3468-5-0x0000000005930000-0x0000000005958000-memory.dmp

          memory/3468-11-0x00000000746F0000-0x0000000074EAC000-memory.dmp

          memory/3468-2-0x0000000003370000-0x000000000337C000-memory.dmp

          memory/3468-1-0x0000000003350000-0x0000000003358000-memory.dmp

          memory/3808-224-0x000000001BA50000-0x000000001BAE4000-memory.dmp

          memory/3808-225-0x000000001BCA0000-0x000000001BE50000-memory.dmp

          memory/3808-222-0x000000001B600000-0x000000001B66C000-memory.dmp

          memory/3808-221-0x0000000000940000-0x00000000009EE000-memory.dmp

          memory/3808-226-0x0000000002A30000-0x0000000002A4A000-memory.dmp

          memory/3808-227-0x000000001C0E0000-0x000000001C268000-memory.dmp

          memory/4284-77-0x0000000005C40000-0x0000000005C68000-memory.dmp

          memory/4880-156-0x0000000003D40000-0x0000000003D5A000-memory.dmp

          memory/4880-198-0x0000000004010000-0x000000000407C000-memory.dmp

          memory/4880-199-0x00000000042E0000-0x0000000004372000-memory.dmp

          memory/4880-201-0x0000000003FA0000-0x0000000003FE1000-memory.dmp

          memory/4880-162-0x0000000003E40000-0x0000000003ED4000-memory.dmp

          memory/4880-203-0x00000000044D0000-0x00000000045A6000-memory.dmp

          memory/4880-179-0x0000000003F50000-0x0000000003FA0000-memory.dmp

          memory/4880-166-0x0000000004090000-0x0000000004240000-memory.dmp