Analysis
- max time kernel
98s - max time network
115s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
11/08/2026, 03:30
Behavioral task
behavioral1
Sample
2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
Resource
win10v2004-20260513-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
Resource
win11ltsc2024-20260709-en
11 signatures
150 seconds
General
- Target 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe
- Size 5.6MB
- Sample260811-d2pe3avdnh
- SHA256 2965064d0c6177c07edf84b6902080f440cc7a5f8f63b42da42c7f6959fecf4f
- MD5 33b90bc8d53e745456b6da8a0cf003fd
- SHA1 d82d9177afd105f1263a2f8e1047d9b365fa30bb
- SHA512 fd9ba61f4c64cef0c4b5b42d86ff806c3dbcac22dc09fb7684a6057b28091f7180c83ae80a82ff8501d6554e63ea6fc410aa46d2384f10502d36a33fa8535ee7
- SSDEEP 98304:A3k03kHRXcJrbr7fkZcNfkZcBrbrbrtTcrLjo:A3k03kHpc9XzPpP1XXtT4/o
- TLSH T1B7460916F5788B62D07BC079C5D2969AFA333C415F308BCB0245AF283E276D5993A727
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detects executables packed with ASPack 6 IoCs
resource yara_rule behavioral2/memory/5800-0-0x0000000000400000-0x000000000040F000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral2/files/0x000c00000001c5bd-5.dat INDICATOR_EXE_Packed_ASPack behavioral2/files/0x000200000001b313-11.dat INDICATOR_EXE_Packed_ASPack behavioral2/memory/5800-21-0x0000000000400000-0x000000000040F000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral2/memory/3580-58-0x0000000000400000-0x000000000040F000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral2/files/0x000500000001ac2b-1247.dat INDICATOR_EXE_Packed_ASPack -
resource yara_rule behavioral2/files/0x000c00000001c5bd-5.dat aspack_v212_v242 behavioral2/files/0x000200000001b313-11.dat aspack_v212_v242 behavioral2/files/0x000500000001ac2b-1247.dat aspack_v212_v242 - Executes dropped EXE 1 IoCs
pid Process 3580 patcher.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinFirewall = "C:\\905c0769f9a06c95a24ddf945\\patcher.exe" 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinFirewall = "C:\\905c0769f9a06c95a24ddf945\\patcher.exe" patcher.exe - Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\:\autorun.inf 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\:\autorun.inf patcher.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jmap.exe patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\ktab.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe$ patcher.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe patcher.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe$ patcher.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe patcher.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_disable\1.3.195.65\MicrosoftEdgeUpdate.exe patcher.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe$ patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jconsole.exe$ patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe$ patcher.exe File created C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javadoc.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe$ patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-040C-1000-0000000FF1CE}\misc.exe$$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedge.exe patcher.exe File created C:\Program Files\Java\jre-1.8\bin\javacpl.exe patcher.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\elevation_service.exe patcher.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_disable\1.3.195.65\MicrosoftEdgeUpdateComRegisterShell64.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files (x86)\Windows Mail\wabmig.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\xjc.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe patcher.exe File opened for modification C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe$ patcher.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\pwahelper.exe patcher.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-000F-0000-1000-0000000FF1CE}\joticon.exe patcher.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jhat.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\kinit.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe$ patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe patcher.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-000F-0000-1000-0000000FF1CE}\wordicon.exe$ patcher.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe patcher.exe File created C:\Program Files\Java\jdk-1.8\bin\jstatd.exe patcher.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\msedgewebview2.exe patcher.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe patcher.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\10.0\VSTOInstaller.exe$ patcher.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\cookie_exporter.exe patcher.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedge.exe$ patcher.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe patcher.exe File opened for modification C:\Program Files\Windows Defender\MpDlpService.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Windows Media Player\wmpnetwk.exe patcher.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe patcher.exe File created C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe patcher.exe File created C:\Program Files\Java\jdk-1.8\bin\wsimport.exe patcher.exe File created C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe patcher.exe File opened for modification C:\Program Files\Mozilla Firefox\updater.exe patcher.exe File opened for modification C:\Program Files\Windows Defender\MpDlpService.exe patcher.exe File created C:\Program Files (x86)\Common Files\Java\Java Update\jaureg.exe patcher.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Windows Mail\wab.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe patcher.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe - Drops file in Windows directory 23 IoCs
description ioc Process File opened for modification C:\Windows\:\autorun.inf patcher.exe File created C:\Windows\assembly\GAC_32\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\ComSvcConfig\3.0.0.0__b03f5f7f11d50a3a\ComSvcConfig.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\dfsvc\2.0.0.0__b03f5f7f11d50a3a\dfsvc.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_32\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_32\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_64\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe$ patcher.exe File created C:\Windows\assembly\GAC_MSIL\dfsvc\2.0.0.0__b03f5f7f11d50a3a\dfsvc.exe patcher.exe File created C:\Windows\assembly\GAC_MSIL\ComSvcConfig\3.0.0.0__b03f5f7f11d50a3a\ComSvcConfig.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\PresentationFontCache\3.0.0.0__31bf3856ad364e35\PresentationFontCache.exe$ patcher.exe File created C:\Windows\assembly\GAC_MSIL\PresentationFontCache\3.0.0.0__31bf3856ad364e35\PresentationFontCache.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_MSIL\PresentationFontCache\3.0.0.0__31bf3856ad364e35\PresentationFontCache.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_64\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_32\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\ComSvcConfig\3.0.0.0__b03f5f7f11d50a3a\ComSvcConfig.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_MSIL\dfsvc\2.0.0.0__b03f5f7f11d50a3a\dfsvc.exe$ patcher.exe File opened for modification C:\Windows\assembly\GAC_MSIL\SMSvcHost\3.0.0.0__b03f5f7f11d50a3a\SMSvcHost.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\SMSvcHost\3.0.0.0__b03f5f7f11d50a3a\SMSvcHost.exe patcher.exe File created C:\Windows\assembly\GAC_64\MSBuild\3.5.0.0__b03f5f7f11d50a3a\MSBuild.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_MSIL\ComSvcConfig\3.0.0.0__b03f5f7f11d50a3a\ComSvcConfig.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\assembly\GAC_MSIL\PresentationFontCache\3.0.0.0__31bf3856ad364e35\PresentationFontCache.exe patcher.exe File opened for modification C:\Windows\assembly\GAC_MSIL\SMSvcHost\3.0.0.0__b03f5f7f11d50a3a\SMSvcHost.exe$ 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File created C:\Windows\assembly\GAC_MSIL\SMSvcHost\3.0.0.0__b03f5f7f11d50a3a\SMSvcHost.exe 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language patcher.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe - NTFS ADS 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\:\autorun.inf 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe File opened for modification C:\Windows\:\autorun.inf patcher.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5800 2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe 3580 patcher.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-11_33b90bc8d53e745456b6da8a0cf003fd_amadey_cobalt-strike_elex_hijackloader_vidar_wannacry.exe"1⤵
- Adds Run key to start application
- Drops autorun.inf file
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of SetWindowsHookEx
PID:5800
-
C:\905c0769f9a06c95a24ddf945\patcher.exeC:\905c0769f9a06c95a24ddf945\patcher.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of SetWindowsHookEx
PID:3580
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\905c0769f9a06c95a24ddf945\patcher.exe
- Size 5.6MB
- SHA256 2965064d0c6177c07edf84b6902080f440cc7a5f8f63b42da42c7f6959fecf4f
- MD5 33b90bc8d53e745456b6da8a0cf003fd
- SHA1 d82d9177afd105f1263a2f8e1047d9b365fa30bb
- SHA512 fd9ba61f4c64cef0c4b5b42d86ff806c3dbcac22dc09fb7684a6057b28091f7180c83ae80a82ff8501d6554e63ea6fc410aa46d2384f10502d36a33fa8535ee7
- SSDEEP 98304:A3k03kHRXcJrbr7fkZcNfkZcBrbrbrtTcrLjo:A3k03kHpc9XzPpP1XXtT4/o
- TLSH T1B7460916F5788B62D07BC079C5D2969AFA333C415F308BCB0245AF283E276D5993A727
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7z.exe$
- Size 6.1MB
- SHA256 6d16bec2541e86b3be1f82d1510c88ee3fca447022e933ad1eeeb71e868c9e2c
- MD5 808b85b6546a2bc8f1295505cc38de41
- SHA1 341691ed84a3f41b6f9d5e2b7be4dfb151e01e69
- SHA512 207f1b2e55cbe361edd6671417d1809b1fd3e32b8bead1856f5eccc01d1128b21fe25c60f0b27950c54095fb73d6b4f3a2c6e3912695f932039de9fe70675847
- SSDEEP 98304:A3k03kHRXcJrbr7fkZcNfkZcBrbrbrtTcrLjo0jo:A3k03kHpc9XzPpP1XXtT4/o+o
- TLSH T11F560916F5788B62D07BC079C5D2A69AFA733C415F308BCB0245AF283E276D59936723
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-040C-1000-0000000FF1CE}\misc.exe$
- Size 5.7MB
- SHA256 ea528efbd3537311329ac3a8b816ec1bdc04918e03ef6b825469085a6107657f
- MD5 5d6d359e3d638cd29e59389b5c3ab749
- SHA1 69d46db109cdb033751251858b6ab6fb24e74b3a
- SHA512 9f71c277b6a95a71e80b2420a72c2f029b0a53ea92f1e7d72f2c4cdf91fc11326d5566a33130ed12b21381c3cd0e64e8e84d0915fb853a438b2889a5194ad9bb
- SSDEEP 98304:A3k03kHRXcJrbr7fkZcNfkZcBrbrbrtTcrLjo2:A3k03kHpc9XzPpP1XXtT4/o2
- TLSH T1C156F816F5688B62D07BC079C5D2969AFA333C415F308BCB0245AF283E376D5993A727
- MD5 SHA1 SHA512 SSDEEP TLSH