Analysis
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max time kernel
150s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13/02/2025, 06:01
Behavioral task
behavioral1
Sample
a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe
Resource
win10v2004-20250207-en
General
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Target
a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe
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Size
1.7MB
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MD5
68635ad9d12f683071611bfd34c1ec34
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SHA1
3d59b3053f9f531197a47a6a936240cb81a700d9
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SHA256
a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9
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SHA512
811764a687edc700883ae31503bedb299702ee6281ae57bc0885f9fd60f80d0f572f545bb060dcd610f904167665ee2a520dbdd77e4f4fd953250b1fcf48cf96
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SSDEEP
24576:GGA0AhSVzjJqVR/xmx0AsQ5r2jOGJTS8KmlI+u+68+05vNR:JAhuzc3DXJTS8KmVzecH
Malware Config
Signatures
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Detects Trigona ransomware 14 IoCs
resource yara_rule behavioral1/memory/2156-0-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-1-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-2-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-8-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-1889-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-2252-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-2288-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-2893-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-2975-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-13113-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-13114-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-13115-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-15198-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona behavioral1/memory/2156-27574-0x0000000000400000-0x00000000005CF000-memory.dmp family_trigona -
Trigona
A ransomware first seen at the beginning of the 2022.
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Trigona family
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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 a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe -
Reads user/profile data of web browsers 3 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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\4036CAA32251C4111FBFD02511D866F4 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe" a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe -
Drops desktop.ini file(s) 14 IoCs
description ioc Process File opened for modification \??\c:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\Hearts\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\Mahjong\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Common Files\microsoft shared\Stationery\Desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1846800975-3917212583-2893086201-1000\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\Chess\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\Solitaire\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\$Recycle.Bin\S-1-5-21-1846800975-3917212583-2893086201-1000\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\SpiderSolitaire\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\FreeCell\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Microsoft Games\Purble Place\desktop.ini a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0213243.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\VelvetRose.css a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\System.Workflow.Runtime.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\Gadget_Main_Background_Loading.png a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\CET a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow\how_to_decrypt.hta a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Google\Update\1.3.36.151\goopdateres_hr.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Elemental.xml a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Templates\1033\Pitchbook.potx a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\it\System.Printing.resources.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01295_.GIF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\attention.gif a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jre7\lib\zi\America\Godthab a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\DVD Maker\Shared\DvdStyles\shadowonlyframe_videoinset.png a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jre7\lib\fontconfig.bfc a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File created \??\c:\Program Files (x86)\Common Files\microsoft shared\Help\1049\how_to_decrypt.hta a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-queries.jar a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PAPER_01.MID a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\plugin.properties a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00625_.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Windows Journal\Templates\To_Do_List.jtp a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107090.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\Perspective.dotx a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.docs.zh_CN_5.5.0.165303.jar a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jre7\bin\server\classes.jsa a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jre7\lib\security\javaws.policy a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\jre\lib\javafx.properties a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0199307.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File created \??\c:\Program Files (x86)\Common Files\System\Ole DB\en-US\how_to_decrypt.hta a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\MEDIA\CLICK.WAV a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\ja-JP\gadget.xml a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Common Files\microsoft shared\THEMES14\BREEZE\BREEZE.INF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01160_.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Concourse.eftx a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File created \??\c:\Program Files\Windows Sidebar\fr-FR\how_to_decrypt.hta a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14753_.GIF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21329_.GIF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jre7\bin\dt_socket.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\stream_out\libstream_out_chromaprint_plugin.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD02075_.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\MSOUC_COL.HXC a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\BrightOrange\tab_on.gif a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\Gadget_Main_Gradient.png a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGLBL044.XML a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\demux\libmkv_plugin.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_LinkDrop32x32.gif a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Common Files\microsoft shared\DW\DWTRIG20.EXE a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105380.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14580_.GIF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKDEC.CFG a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\CALENDAR.GIF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.sdk.nl_ja_4.4.0.v20140623020002.jar a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Templates\1033\ClassicPhotoAlbum.potx a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FORM.JS a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\de\ReachFramework.resources.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Common Files\Microsoft Shared\ink\de-DE\rtscom.dll.mui a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\DVD Maker\Shared\DvdStyles\Push\NavigationLeft_ButtonGraphic.png a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Common Files\SpeechEngines\Microsoft\TTS20\en-US\MSTTSFrontendENU.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Mozilla Firefox\browser\VisualElements\VisualElements_70.png a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0235241.WMF a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Common Files\System\ado\msado21.tlb a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\feature.xml a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\epl-v10.html a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\audio_filter\libscaletempo_pitch_plugin.dll a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe"C:\Users\Admin\AppData\Local\Temp\a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
PID:2156
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5d037b5587ef9a6e48967492112225933
SHA1f427d1303721abe884ad919e9abd75155c6efcdf
SHA256af6ae71d38e07223bcf5d93ad83b7238b96d4563a087253f2507491514675856
SHA512a499ed9f61a98b41f72a1a67f6a2ed5d8d7e8f09d8d000a6eabf9b96f231402cbf208e2a3fb536184e71eff31a12af856e80988899cfcbe350d96ad77d022673
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Filesize
12KB
MD5a77a055620832abe993829b763b8a80d
SHA149fb1a87c2b9c6db65fd622a0a3b067dddc6ee36
SHA2567e3d8b56bee946639cb1fda7ee5d7218979b94cdd4e62fa9e5ede59975d78b1d
SHA512c041f3b9d92b01d1a54fe92a83810b26a27e66125ec2c20844b92d2c89bc985a20a12554d8169c37a5e5549e1faad5bdfad00edb9c87a5cf3d08a57c6f7a4f70