Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 18:26

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260720-w3gqqac151
  • SHA256 04c6d058f97591e91ff4ce24de8fab43ba7e1d6635a960f39453f8004bc257f3
  • 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 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:4788
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\8988b5f621ad0c35\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:2908
  • 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:2132
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0F1E23808ECF629E04C799EC8DF7942F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723421 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3200
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2AE0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724765 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5792
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI312A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726562 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2792
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4340
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 012CA915F26B9F1D4796D3A25F56BB64
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3964
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F2EB0B303B6428AD9A8D8164D1E998EE E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4872
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4480
    • C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cj16w1-relay.screenconnect.com&p=443&s=fee66c97-e2e7-4ed8-889a-bc70192a2686&k=BgIAAACkAABSU0ExAAgAAAEAAQBtlPj8alAxyfVKR%2b%2fWYBncLolxgI2G9yO0cHi5UTYk2H%2f7J60d2CfaZ5hhH8A9Ovlfwsr1DLbapoRs%2bsYWlTJgxWp5bgyEDAW2Z3bnUkSbbnDfILrA1CW7WHM%2bJ%2bcq7ynfd5oSw73XPlN%2b0eYilriK5TfTuaiwSYWF7oYRXgqPrWmyFu%2bQZlhQZ2RV1wJVqdbEBeUbDXukFoNTSfjp7k6Il7jxjricU1HhllrPJL0Hu1ccUd6rO0PTvWnSQLkcBZ71MYdBuFYHPENNaSY%2faPaRohTrP3cZ5DUNe27rGaJHfRJ0HPC3qKLIInUrJNP1iI1hWsFgPaW3ij0sNpj9N5i5"
      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:1144
      • C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe" "RunRole" "15fcd61a-6b23-4219-9b54-3338901911dc" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4820
      • C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe" "RunRole" "df1f8d64-6a09-407d-8fe1-7e27ad64ae8f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4104

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e598803.rbs

          • Path C:\Config.Msi\e598803.rbs
          • Size 214KB
          • SHA256 712d257b7f3f100249a56681f1c197cac63f26c605e2c1fbb9a1fb442771e434
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8988b5f621ad0c35)\system.config
          • Size 962B
          • SHA256 f13db2b46d2037f019e0b1a35982bc0c5e11daedf0e543252927a2b624ed1891
          • MD5 SHA1 SHA512 TLSH

          MSI2560.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2560.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2AE0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2AE0.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\8988b5f621ad0c35\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 becce37354df30aa1c565a3ae65776671adc44c6a574e89776a4efdff4c38155
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8EAB.tmp

          • Path C:\Windows\Installer\MSI8EAB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3jgfygks.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8988b5f621ad0c35)\3jgfygks.newcfg
          • Size 881B
          • SHA256 96fe9013e09172ca495d6cb2f41e11ad612d01238f882065ed403417b1a7a9ed
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8988b5f621ad0c35)\user.config
          • Size 520B
          • SHA256 9112b80f6e052a7b55da6ec1a0a47eff4a5b945040749a4f2e3c5f70a426a21b
          • MD5 SHA1 SHA512 TLSH

          zbfsqaih.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8988b5f621ad0c35)\zbfsqaih.newcfg
          • Size 683B
          • SHA256 35f840e2c0853e49124af24848d4455e9fbd072353cd0c7fc3bf4c747b34b49e
          • MD5 SHA1 SHA512 TLSH

          memory/1144-199-0x0000000003B90000-0x0000000003BD1000-memory.dmp

          memory/1144-164-0x0000000003D40000-0x0000000003EF0000-memory.dmp

          memory/1144-203-0x00000000040E0000-0x00000000041B6000-memory.dmp

          memory/1144-197-0x0000000003EF0000-0x0000000003F82000-memory.dmp

          memory/1144-196-0x0000000003C00000-0x0000000003C6C000-memory.dmp

          memory/1144-154-0x00000000014E0000-0x00000000014FA000-memory.dmp

          memory/1144-170-0x0000000003B20000-0x0000000003B70000-memory.dmp

          memory/1144-160-0x0000000003A00000-0x0000000003A94000-memory.dmp

          memory/2132-114-0x00000268B7E00000-0x00000268B802D000-memory.dmp

          memory/2132-237-0x00000268B7E00000-0x00000268B802D000-memory.dmp

          memory/2132-265-0x00000268B7E00000-0x00000268B802D000-memory.dmp

          memory/2132-200-0x00000268B7E00000-0x00000268B802D000-memory.dmp

          memory/2132-201-0x00000268B7380000-0x00000268B744D000-memory.dmp

          memory/2132-116-0x00000268B7E00000-0x00000268B802D000-memory.dmp

          memory/3200-31-0x0000000003330000-0x000000000335E000-memory.dmp

          memory/3200-39-0x0000000005480000-0x0000000005514000-memory.dmp

          memory/3200-43-0x00000000056D0000-0x0000000005880000-memory.dmp

          memory/3200-35-0x0000000003370000-0x000000000337C000-memory.dmp

          memory/4340-230-0x0000015FA3430000-0x0000015FA365D000-memory.dmp

          memory/4480-115-0x00000121E2BC0000-0x00000121E2DED000-memory.dmp

          memory/4480-229-0x00000121E2BC0000-0x00000121E2DED000-memory.dmp

          memory/4480-267-0x00000121E2BC0000-0x00000121E2DED000-memory.dmp

          memory/4480-120-0x00000121E2BC0000-0x00000121E2DED000-memory.dmp

          memory/4788-3-0x00000000058F0000-0x0000000005984000-memory.dmp

          memory/4788-11-0x0000000074D00000-0x00000000754BC000-memory.dmp

          memory/4788-6-0x0000000074D00000-0x00000000754BC000-memory.dmp

          memory/4788-2-0x0000000003250000-0x000000000325C000-memory.dmp

          memory/4788-9-0x0000000074D00000-0x00000000754BC000-memory.dmp

          memory/4788-1-0x0000000003230000-0x0000000003238000-memory.dmp

          memory/4788-5-0x00000000059E0000-0x0000000005B90000-memory.dmp

          memory/4788-0-0x0000000074D12000-0x0000000074D13000-memory.dmp

          memory/4788-4-0x0000000005980000-0x00000000059A8000-memory.dmp

          memory/4788-7-0x0000000006150000-0x000000000670A000-memory.dmp

          memory/4820-225-0x00000000027F0000-0x000000000280A000-memory.dmp

          memory/4820-227-0x000000001BD80000-0x000000001BF08000-memory.dmp

          memory/4820-224-0x000000001BA40000-0x000000001BBF0000-memory.dmp

          memory/4820-221-0x0000000000720000-0x00000000007CC000-memory.dmp

          memory/4820-223-0x000000001B7F0000-0x000000001B884000-memory.dmp

          memory/4820-222-0x00000000029E0000-0x0000000002A4C000-memory.dmp

          memory/5792-73-0x0000000005F10000-0x0000000005F38000-memory.dmp