Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
21-01-2024 14:53
Behavioral task
behavioral1
Sample
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
Resource
win10-20231215-en
Behavioral task
behavioral3
Sample
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
Resource
win11-20231215-en
General
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Target
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
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Size
1.1MB
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MD5
eb9fdc083164c0cead39fecaad9aafb4
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SHA1
19c8782165f56d4153658da5f88f9edd14ae2022
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SHA256
8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376
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SHA512
c4c54de23730f5265d29372c21f4f2212a0204f9b83d7fba5dacb0578fbe9f1c95e7521ff892364253f0cd8f4cfbf5befbef387af942714eb4b1b983b0258603
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SSDEEP
24576:2Y5sZYIcpO4Y4w+xEjN7oQr+O+uvjx8t2mEdp:/Y4470JYj+kmEf
Malware Config
Signatures
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Detects Trigona ransomware 13 IoCs
resource yara_rule behavioral3/memory/3428-0-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-1-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-2-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-8-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-2933-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-4439-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-5054-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-7545-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-17675-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-22832-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-22833-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-22834-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/3428-22835-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona -
Trigona
A ransomware first seen at the beginning of the 2022.
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Drops startup file 1 IoCs
description ioc Process File created \??\c:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\77A390EF407ABCA1D5F1B839727003D3 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe" 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification \??\c:\$Recycle.Bin\S-1-5-21-1232405761-1209240240-3206092754-1000\desktop.ini 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\desktop.ini 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1232405761-1209240240-3206092754-1000\desktop.ini 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\api-ms-win-crt-filesystem-l1-1-0.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\MSIPC\pt\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\sl-si\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\access\libnfs_plugin.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Windows Media Player\en-US\wmpnssci.dll.mui 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-oob.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_M365_eula.txt 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-white\SplashScreen.scale-400_contrast-white.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\lua\intf\luac.luac 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageWideTile.scale-125_contrast-white.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DocumentFormat.OpenXml.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Win10\StoreLogo.scale-100.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-140.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\System.Memory.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\bin\jmap.exe 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\tr\Microsoft.VisualBasic.Forms.resources.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ul-phn.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\en\Common.ExcelServices.Resources.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vreg\officemuiset.msi.16.en-us.vreg.dat 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\Workflow.VisualBasic.Targets 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\Mozilla Firefox\gmp-clearkey\0.1\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\ko\System.Windows.Controls.Ribbon.resources.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-phn.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ppd.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Templates\1033\EssentialLetter.dotx 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\Fonts\private\LEELAWDB.TTF 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\locale\ca\LC_MESSAGES\vlc.mo 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.0\System.Memory.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Java\jre-1.8\bin\api-ms-win-core-util-l1-1-0.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\ja\UIAutomationClient.resources.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.ServiceModel.NetTcp.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Sticker_Eye.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\sv-se\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-pl.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\api-ms-win-crt-math-l1-1-0.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppPackageMedTile.scale-100_contrast-black.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Filters\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\lua\sd\icecast.luac 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-pl.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\Microsoft.Build.Conversion.v3.5.resources.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.DesktopAppInstaller_1.0.30251.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppPackageBadgeLogo.scale-100.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\css\files\dev\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\ko-kr\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\WindowsFormsIntegration.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\SKY\SKY.ELM 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\mux\libmux_ts_plugin.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\Attribution\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_neutral_split.scale-125_8wekyb3d8bbwe\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\DataModel\Cartridges\sql70.xsl 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\api-ms-win-core-string-l1-1-0.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SmallTile.scale-125_contrast-white.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SplashScreen.scale-150_contrast-black.png 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_neutral_split.scale-125_8wekyb3d8bbwe\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\jre\bin\jsound.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_OEM_Perp-ul-phn.xrm-ms 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\Mozilla Firefox\plugin-container.exe.sig 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\stream_out\libstream_out_description_plugin.dll 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\RuntimeConfiguration.winmd 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\sv-se\how_to_decrypt.hta 8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe"C:\Users\Admin\AppData\Local\Temp\8cbe32f31befe7c4169f25614afd1778006e4bda6c6091531bc7b4ff4bf62376.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
PID:3428
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD53318742cfd8b8a94e706874b79a41da0
SHA17c6b246cbb3c91cfb14a65ff6e8624bb7acd267a
SHA256ca13e2c3b447485b14e8b1fba4062cfcb9092c49d0a8629694c3970c40834c05
SHA51200c16a0478ab70d9102400e0287c2964584e48ca12f639018805831e9ff31d9ad0ba5d39e9c868f66dc82aef5113a51d1099ac5b140cc7ebc044d8a59d16c587
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Filesize
12KB
MD521bf1f5c159901df30ef15b581b35371
SHA1fd2e67963fef2e8a613a3dc5f030e8c8d9eb7680
SHA256de33079ccfe40bc357d0c3c0345d2a7ecf4d52aff14a07e3aec344e81f1ff3ef
SHA512769ef2da6b799e9954962462a1ca9e6fad00284d5f49cbdf08bd83c6f5df0911742d3f87ab0787587786f74558b489b3eaf9b517b09862febc707142a134e2fc