Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/06/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260624-ww6fhaet21
  • SHA256 2a897b9d26069c1aceab2845a4ce306d42df982920685880882014da7dc440c6
  • 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:1876
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\7fb790344a0d8666\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:5244
  • 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:2036
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9C154AD62B526A336DCD3DBDF8F54762 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2368
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240700000 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4592
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICC26.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240700484 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5428
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID203.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240702000 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1412
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1632
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 01EED36D6D2AD73E593A575E22AE374C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2712
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2F1C258D97181F7D3B7EE08FA50FA159 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5792
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4832
    • C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-puisv0-relay.screenconnect.com&p=443&s=b5212f07-e664-46df-83f1-b681004d667c&k=BgIAAACkAABSU0ExAAgAAAEAAQBtJ0Z3MU3uPTnK692Y%2bnMIYcCK8PaTy68MjFT8ThMyn95ystH01YsDZ%2b5PRvauFH1Y8IBE5ocgahB7hGR7Yi5IEdjJ3W20bnWPEohDDdZvC2Vux6IvH6mDffaN5T7JoV9bq8L2QACg%2fZXBQtBtya8tV5MLCmogXI0PeWgMxBWJm022eWd7ggJybeN0LeaL1gqJZenCfMBKGIuNRbWxSC1gZT%2bFLDwjrmfmpmFuX0Ao8%2bxg9cBVYcLrEvst2MXbwQ9AJ6SrlB6FkWn2Uqm2XCNK7FP3MW2c6OmEa5mZ7PSYAink7kqPQByx5yK%2fzU7EVXQtZpKT21xlXg5hKoMwn96r&c=Invoice&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:1624
      • C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe" "RunRole" "bdd0bccc-62b3-421d-a5d3-574c08661b92" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2852
      • C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe" "RunRole" "1a6952c1-beb2-4a1d-884d-41a7f92900a8" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1252

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5912b4.rbs

          • Path C:\Config.Msi\e5912b4.rbs
          • Size 214KB
          • SHA256 e1489a75ed8711527d1a0d5f35c1620b001e2363082e278c7144b806dc08fa81
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7fb790344a0d8666)\system.config
          • Size 956B
          • SHA256 d95c8fc92bc156d493f98d7b8ca88ac417f321579ffcfee3c196abf242ad5844
          • MD5 SHA1 SHA512 TLSH

          MSIC9C3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC9C3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSICC26.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICC26.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\7fb790344a0d8666\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 5e462a16127e85fd48f62b7725cb5886110ec5c7c0fc4296adfd5983162aa0e1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI1881.tmp

          • Path C:\Windows\Installer\MSI1881.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2nbmakud.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fb790344a0d8666)\2nbmakud.newcfg
          • Size 880B
          • SHA256 26577402c094b0be99acf5169877f8f44e4048ca246be9de8e1f2404e7087f53
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fb790344a0d8666)\user.config
          • Size 520B
          • SHA256 274d7c95c1c42499c98a5c18e6ae7b92094acb46a8a5b9e1172e45113af01c17
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fb790344a0d8666)\user.config
          • Size 683B
          • SHA256 e457a92c4b6fc2439a75cae69686364377aa6e02e363f7d494fd9dab951a7752
          • MD5 SHA1 SHA512 TLSH

          memory/1624-184-0x0000000004D10000-0x0000000004DA2000-memory.dmp

          memory/1624-188-0x0000000004F00000-0x0000000004FD6000-memory.dmp

          memory/1624-186-0x0000000004960000-0x00000000049A1000-memory.dmp

          memory/1624-183-0x00000000049D0000-0x0000000004A3C000-memory.dmp

          memory/1624-160-0x0000000004870000-0x0000000004904000-memory.dmp

          memory/1624-154-0x00000000020F0000-0x000000000210A000-memory.dmp

          memory/1624-164-0x0000000004AC0000-0x0000000004C70000-memory.dmp

          memory/1624-166-0x0000000004910000-0x0000000004960000-memory.dmp

          memory/1876-0-0x0000000074962000-0x0000000074963000-memory.dmp

          memory/1876-9-0x0000000074950000-0x000000007510C000-memory.dmp

          memory/1876-6-0x0000000006080000-0x0000000006230000-memory.dmp

          memory/1876-7-0x00000000067F0000-0x0000000006DAA000-memory.dmp

          memory/1876-4-0x0000000074950000-0x000000007510C000-memory.dmp

          memory/1876-8-0x0000000074950000-0x000000007510C000-memory.dmp

          memory/1876-11-0x0000000074950000-0x000000007510C000-memory.dmp

          memory/1876-13-0x0000000074950000-0x000000007510C000-memory.dmp

          memory/1876-1-0x0000000003950000-0x0000000003958000-memory.dmp

          memory/1876-2-0x0000000003970000-0x000000000397C000-memory.dmp

          memory/1876-3-0x0000000005F50000-0x0000000005FE4000-memory.dmp

          memory/1876-5-0x0000000003B70000-0x0000000003B98000-memory.dmp

          memory/2852-219-0x0000000002920000-0x000000000298C000-memory.dmp

          memory/2852-221-0x000000001BA00000-0x000000001BBB0000-memory.dmp

          memory/2852-220-0x000000001B7B0000-0x000000001B844000-memory.dmp

          memory/2852-222-0x0000000002870000-0x000000000288A000-memory.dmp

          memory/2852-223-0x000000001BD40000-0x000000001BEC8000-memory.dmp

          memory/2852-218-0x00000000006A0000-0x000000000074C000-memory.dmp

          memory/4592-39-0x0000000003C20000-0x0000000003C2C000-memory.dmp

          memory/4592-35-0x0000000003BF0000-0x0000000003C1E000-memory.dmp

          memory/4592-43-0x0000000005D90000-0x0000000005E24000-memory.dmp

          memory/4592-47-0x0000000005FE0000-0x0000000006190000-memory.dmp

          memory/5428-77-0x0000000003560000-0x0000000003588000-memory.dmp