Analysis
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max time kernel
150s -
max time network
167s -
platform
windows11-21h2_x64 -
resource
win11-20231215-en -
resource tags
arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system -
submitted
21-01-2024 14:53
Behavioral task
behavioral1
Sample
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
Resource
win10-20231220-en
Behavioral task
behavioral3
Sample
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
Resource
win11-20231215-en
General
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Target
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
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Size
1.1MB
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MD5
530967fb3b7d9427552e4ac181a37b9a
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SHA1
41bcf469661ab9609a0d181953c2f8ffb75bb483
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SHA256
fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b
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SHA512
b81a447a994839a6858bab10eaa2c26aabaf3f73e7ffd2c70d27dfde5f11b35f5d153362277c046d47bcf9dc2d2b7c92d5805e89e633f9326306071abb213afa
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SSDEEP
24576:15swNmjEoujhn3wVPWJFwEQWV+u7h62TL:HouNVOEbcah6qL
Malware Config
Signatures
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Detects Trigona ransomware 14 IoCs
resource yara_rule behavioral4/memory/956-0-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-1-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-2-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-7-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-2633-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-4335-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-4950-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-6181-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-9941-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-11964-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-13924-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-17291-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-20511-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral4/memory/956-22762-0x0000000000400000-0x0000000000526000-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 fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.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-1-5-21-3632047111-1948211978-3010235048-1000\Software\Microsoft\Windows\CurrentVersion\Run\0BF35394D28162FFD8D3DACB200F8A05 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe" fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe -
Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3632047111-1948211978-3010235048-1000\desktop.ini fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\$Recycle.Bin\S-1-5-21-3632047111-1948211978-3010235048-1000\desktop.ini fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\desktop.ini fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ppd.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-phn.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-pl.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\OneNote\SendToOneNoteFilter.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\video_filter\libbluescreen_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.ScreenSketch_11.2104.2.0_neutral_split.scale-100_8wekyb3d8bbwe\SnippingTool\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\sl-si\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Common Files\System\msadc\adcvbs.inc fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatching.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\mscss7cm_fr.dub fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Java\jre-1.8\lib\ext\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.YourPhone_2019.430.2026.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\themes\dark\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\Fonts\private\LEELAWAD.TTF fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\Sybase.xsl fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ScreenSketch_11.2104.2.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SnipSketchStoreLogo.scale-125.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\jre\lib\security\java.policy fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jre-1.8\lib\security\javaws.policy fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN026.XML fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Windows.Presentation.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Windows Media Player\en-US\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ScreenSketch_11.2104.2.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\contrast-black\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\PROOF\LTSHYPH_ES.LEX fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2020.503.58.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\CameraStoreLogo.scale-125.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\BOLDSTRI\PREVIEW.GIF fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Trial-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.UI.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\lua\playlist\twitch.luac fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_1.0.38.0_x64__8wekyb3d8bbwe\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\he-il\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\codec\libedummy_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-ul-phn.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.DesktopAppInstaller_1.0.42251.0_neutral_split.scale-125_8wekyb3d8bbwe\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.0\System.ValueTuple.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-pl.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsCamera_2020.503.58.0_x64__8wekyb3d8bbwe\AppxMetadata\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\ar-ae\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\images\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\codec\libuleaddvaudio_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\js\nls\ko-kr\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\zh-Hant\ReachFramework.resources.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jre-1.8\bin\jsound.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\pt-BR\ReachFramework.resources.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ppd.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\rsod\onenotemui.msi.16.en-us.tree.dat fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ScreenSketch_11.2104.2.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\contrast-white\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.People_10.1909.12456.0_x64__8wekyb3d8bbwe\Assets\Fonts\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\Microsoft.VisualBasic.Forms.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-white_scale-140.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\api-ms-win-crt-time-l1-1-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Getstarted_10.2.41172.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\TipsWideTile.scale-200_contrast-black.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\COMPASS\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\images\email\themes\dark\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe"C:\Users\Admin\AppData\Local\Temp\fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
PID:956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD59754ebe2ab707ca0f3016dbf8b34bdfa
SHA12d78053db90755aadb0b5a9ff9a0eedc11a680ac
SHA2560fd3b653653122b8cb3b029406dbc5584e7a28310339473930717a76478f6d3c
SHA5129bc7709de9157d665a9685a6e7e1034dca0f1b10f6a3fa632a3a9b430c84b226c4bc2771af8b3848698604b97b957b9e7d65f3e48c712d864d54eb58e85e4fa3
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Filesize
11KB
MD551dcaf669676000a5f1bb4b26ec64a79
SHA187044b41dcaf44f7441d0e15acf38100f1d1c213
SHA2566c630514f518e2b79c1fd51c36d896e54f414e0e2b8577fe4e468d68c7f4c0b5
SHA5120194ea85b2b7aa31107802895901e3bbb2c68d74650ddaa65729969ff5566ade23a1636bcaa744d2bd2fa7983b825118d81e891f31bf419e3b0de80b06fb373e