Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 18:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260706-wvm8jae13m
  • SHA256 3de9d1e37f68a53cfa349588df080fed86f1d7468a1cb1de092ed5c47521e61f
  • 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.

  • 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:708
  • 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:4932
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6C249131C9DB476D5B811A77B9855BE1 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5076
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240718296 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1576
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI18AF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720359 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3192
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2052.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722125 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3916
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1216
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DA1B8AF6081DB8B1F07B71780BBE5BD8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5088
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AF305D4E612E18C7950E4630A498A7DC E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6024
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1976
    • C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-o3afn2-relay.screenconnect.com&p=443&s=7d507f80-32a4-421a-855d-5825b502501c&k=BgIAAACkAABSU0ExAAgAAAEAAQDB%2b1XiHNvCW4gq2HCAMb13af0ZVk3PeHKthuVKfypGMn%2b51NqTf3xZkZy5W%2bVpC28iL%2fP4u6dpetC%2bzawarKv4ZKUxvADbmwmhHMECHmOiJZ1LTmd8DgQVzPHVEA7%2fPLm%2bFCBonVPYns1%2bAb8s%2foGqCKr3SwHs6HvogI%2fUAG8FBrVaTMPSxIwpEA%2bfIRqJ3T6pZQ%2bmlGtLuUpRw%2f9DIaAervOqLgHZzv2Tc%2ff0nJ%2bIs1pOcaAQqUDnoIsaFRxqLzOwCnnALPz0ZpdLBMfrU7SxfoVeBCEMt68BLup3EYGEgKYuNKnY3mHs5udSuX8%2bCpCoQv9TiypxTHI6H25jrT2s"
      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:1528
      • C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe" "RunRole" "ab3e8521-8f49-4071-9e39-d117824e8253" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5724
      • C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe" "RunRole" "04b0df53-fd85-4e2a-84b1-37d020673aa2" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4964

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e597cd8.rbs

          • Path C:\Config.Msi\e597cd8.rbs
          • Size 214KB
          • SHA256 55161b0768587de1de100f799afd29bd23016e4db9a42808b96b1fe3371bf59d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6dfed18f83b0cfe9)\system.config
          • Size 976B
          • SHA256 baa01ed02ce428afa115f04568265c75bf57efb57d8c459a8196b13c06b1e6c7
          • MD5 SHA1 SHA512 TLSH

          MSI10A0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI10A0.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI18AF.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI18AF.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI85F0.tmp

          • Path C:\Windows\Installer\MSI85F0.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e597cd7.msi

          • Path C:\Windows\Installer\e597cd7.msi
          • Size 9.8MB
          • SHA256 3de9d1e37f68a53cfa349588df080fed86f1d7468a1cb1de092ed5c47521e61f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0rjyolhb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dfed18f83b0cfe9)\0rjyolhb.newcfg
          • Size 882B
          • SHA256 6a944c12cf0f474645b1c56a92c3e109d99028f231e93f9bf62b59afa54bc19c
          • MD5 SHA1 SHA512 TLSH

          legb1j2g.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dfed18f83b0cfe9)\legb1j2g.newcfg
          • Size 882B
          • SHA256 44d9f894dcdf4f97ca81704c81012ba05a7b39887748e71459d95e75120096ee
          • MD5 SHA1 SHA512 TLSH

          sfcebqvu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dfed18f83b0cfe9)\sfcebqvu.newcfg
          • Size 882B
          • SHA256 e043199c7579a8484567f305b0d7f498ef99b7df617de22a761e1f9d705e166d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dfed18f83b0cfe9)\user.config
          • Size 520B
          • SHA256 2de8d8684937a1c2a6a59d4fa1a74dd9689bde7cd6721d885238c01aaa113558
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dfed18f83b0cfe9)\user.config
          • Size 683B
          • SHA256 23ec86bc6b2c937b846cf16da6fad70c0c4c94efa5a51941ef133ac1482e2b64
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 350a8c911cfd97fd2c67152c0236fffee7e93af377e04871001bcef4001cbe43
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {32504169-f51f-4ef5-add5-dcd8c7505689}_OnDiskSnapshotProp

          • Path \??\Volume{da0117bb-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{32504169-f51f-4ef5-add5-dcd8c7505689}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 b0bdbcfdc3a2485fd59d3016c983be918afc29ef33bf85c8d59a38e0d15e86eb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1528-182-0x0000000003FD0000-0x0000000004062000-memory.dmp

          memory/1528-147-0x0000000003A50000-0x0000000003AE4000-memory.dmp

          memory/1528-184-0x0000000003C40000-0x0000000003C81000-memory.dmp

          memory/1528-186-0x00000000041C0000-0x0000000004296000-memory.dmp

          memory/1528-141-0x0000000001480000-0x000000000149A000-memory.dmp

          memory/1528-181-0x0000000003EC0000-0x0000000003F2C000-memory.dmp

          memory/1528-155-0x0000000003BF0000-0x0000000003C40000-memory.dmp

          memory/1528-151-0x0000000003CA0000-0x0000000003E50000-memory.dmp

          memory/1576-25-0x00000000060C0000-0x00000000060CC000-memory.dmp

          memory/1576-29-0x0000000006170000-0x0000000006204000-memory.dmp

          memory/1576-21-0x0000000004070000-0x000000000409E000-memory.dmp

          memory/1576-34-0x0000000006BC0000-0x000000000717A000-memory.dmp

          memory/1576-33-0x0000000006450000-0x0000000006600000-memory.dmp

          memory/3192-64-0x0000000005B70000-0x0000000005B98000-memory.dmp

          memory/5724-205-0x0000000000080000-0x000000000012C000-memory.dmp

          memory/5724-210-0x000000001B650000-0x000000001B7D8000-memory.dmp

          memory/5724-211-0x0000000002280000-0x00000000022C1000-memory.dmp

          memory/5724-209-0x0000000002260000-0x000000000227A000-memory.dmp

          memory/5724-208-0x000000001B4A0000-0x000000001B650000-memory.dmp

          memory/5724-207-0x000000001B150000-0x000000001B1E4000-memory.dmp

          memory/5724-206-0x000000001ADE0000-0x000000001AE4C000-memory.dmp