Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 11:13

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260625-nbpy1sa18w
  • SHA256 1417f0aecba2abf747c189551dfc9f0f82bab95c2c75644fbdd58866130dbb76
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 12 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 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:5756
  • 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:1460
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 74AE00DB14EECBDA19B648B6B3864C07 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3708
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240727640 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3428
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3A22.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728640 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6116
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE49C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240772281 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5152
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1232
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 57A76D3EBC66BA4CFC0DD5DB4D4DCAF2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3864
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 490265BB2945B99C89E265D4B0C51DB5 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5404
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1608
    • C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cevezs-relay.screenconnect.com&p=443&s=1c87ccf5-3148-4b8a-aaed-488147cbff5c&k=BgIAAACkAABSU0ExAAgAAAEAAQAhrElRi2XuwaxE4ialb8wpA%2f4si%2fkDa27vobygLvFgThWji4wiailLWJT1O1zlBqCigks6njiNN%2fbjWZXkdb88nwqX4UbKy6vZAASeYHnVRhqU6mgwglt%2fwP3QhZktmlwCDKmlQDdkXnx%2bPZxtV5d8AnuPQn98KvOdZ2rOPrjvTAdrbILiXZYcjW3sI3H%2blPfxK2nCGW6GEu9mNdZ0YPyc8RnJPnw75UnQvOUIApg4JLYAAdTVpcb0RtKKg9RdrHuxhS01uLoBpJlBZr5tOeqoONWd4TGc9fLTrM8a%2bNeZZ69RqZug%2bgz2TKS60oN5j%2fFofJMy92JKCaWW3JFBsvC0"
      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:1704
      • C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe" "RunRole" "0bbc7f09-13b6-48f1-b9df-12b74f704482" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:800
      • C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe" "RunRole" "eac35305-bb53-43c1-a096-6cbd68f81f06" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2616

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a226f.rbs

          • Path C:\Config.Msi\e5a226f.rbs
          • Size 214KB
          • SHA256 7efdfebf7f4d60f6e53e31152c958c7f6416602245d5fafe8989fd42cb7675ff
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (de6e35322bf2daac)\system.config
          • Size 962B
          • SHA256 b0c416a50a5cdeab788be4451cb8bb9271cd3906c69dbcb509770d4e64758c98
          • MD5 SHA1 SHA512 TLSH

          MSI356E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI356E.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3A22.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3A22.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI27DD.tmp

          • Path C:\Windows\Installer\MSI27DD.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a226e.msi

          • Path C:\Windows\Installer\e5a226e.msi
          • Size 9.8MB
          • SHA256 1417f0aecba2abf747c189551dfc9f0f82bab95c2c75644fbdd58866130dbb76
          • MD5 SHA1 SHA512 SSDEEP TLSH

          az2ur13z.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (de6e35322bf2daac)\az2ur13z.newcfg
          • Size 883B
          • SHA256 9e3a9ffc6b2a27b0c442acfc82e6e18f3c31364f767660ab53296a1d4c29c5de
          • MD5 SHA1 SHA512 TLSH

          fhu3b4vh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (de6e35322bf2daac)\fhu3b4vh.newcfg
          • Size 683B
          • SHA256 e5330989db6423472feebe37a6de4dd94ad09920ddac8b8209386b82ca467435
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (de6e35322bf2daac)\user.config
          • Size 520B
          • SHA256 2aa49df1e924d1a0ec3564e7f9e365b013f75f2384ca5db66a20daed80557bcc
          • MD5 SHA1 SHA512 TLSH

          vkbhom1m.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (de6e35322bf2daac)\vkbhom1m.newcfg
          • Size 883B
          • SHA256 2de934e57fbd9005b94004cfb2ebc5d5cd4f1c04bf1197ac05ec68a7e54e0347
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 18f92f439d80d6081894eafeb37ebd699e1939ddbbfb0d8c7526254f0fffe182
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {ea8306c3-783b-4275-91e9-9d6298a5a5fe}_OnDiskSnapshotProp

          • Path \??\Volume{48cf2592-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{ea8306c3-783b-4275-91e9-9d6298a5a5fe}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 eb415bba6c61588f35b24b6af0afa5b84bfebd429d07271c2c944d31e70cfaa4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/800-209-0x0000000001710000-0x000000000177C000-memory.dmp

          memory/800-213-0x000000001C470000-0x000000001C5F8000-memory.dmp

          memory/800-212-0x00000000016C0000-0x00000000016DA000-memory.dmp

          memory/800-211-0x000000001C130000-0x000000001C2E0000-memory.dmp

          memory/800-208-0x0000000000DA0000-0x0000000000E4C000-memory.dmp

          memory/800-210-0x000000001BEE0000-0x000000001BF74000-memory.dmp

          memory/1460-214-0x000001B9236F0000-0x000001B924094000-memory.dmp

          memory/1704-185-0x0000000004800000-0x0000000004892000-memory.dmp

          memory/1704-187-0x00000000044D0000-0x0000000004511000-memory.dmp

          memory/1704-165-0x0000000004480000-0x00000000044D0000-memory.dmp

          memory/1704-148-0x0000000004360000-0x00000000043F4000-memory.dmp

          memory/1704-184-0x0000000004540000-0x00000000045AC000-memory.dmp

          memory/1704-152-0x00000000045B0000-0x0000000004760000-memory.dmp

          memory/1704-189-0x00000000049F0000-0x0000000004AC6000-memory.dmp

          memory/1704-142-0x0000000001CD0000-0x0000000001CEA000-memory.dmp

          memory/3428-33-0x0000000005B60000-0x0000000005D10000-memory.dmp

          memory/3428-34-0x00000000062D0000-0x000000000688A000-memory.dmp

          memory/3428-29-0x0000000005910000-0x00000000059A4000-memory.dmp

          memory/3428-21-0x00000000057C0000-0x00000000057EE000-memory.dmp

          memory/3428-25-0x0000000005800000-0x000000000580C000-memory.dmp

          memory/6116-64-0x0000000005CF0000-0x0000000005D18000-memory.dmp