Analysis
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max time kernel
150s -
max time network
162s -
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
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 13 IoCs
resource yara_rule behavioral3/memory/4460-0-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-1-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-2-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-3-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-8-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-4446-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-4450-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-5126-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-12172-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-20716-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-22907-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-22908-0x0000000000400000-0x0000000000526000-memory.dmp family_trigona behavioral3/memory/4460-22909-0x0000000000400000-0x0000000000526000-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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4EEF5B6B2CDB430C031BF1AF63149CE2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe" fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.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 F:\$RECYCLE.BIN\S-1-5-21-768304381-2824894965-3840216961-1000\desktop.ini fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\$Recycle.Bin\S-1-5-21-768304381-2824894965-3840216961-1000\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 created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\nl-nl\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\uk-ua\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-pl.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\GR8GALRY.GRA fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.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 fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\services_discovery\libmediadirs_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Help\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Green.xml fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2018.826.98.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxSignature.p7x fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_8wekyb3d8bbwe\AppxSignature.p7x fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\AppPackageAppList.targetsize-48_altform-unplated.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Java\jre-1.8\lib\security\policy\unlimited\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Common Files\System\msadc\fr-FR\msadcor.dll.mui fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Transit\contrast-white\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\Fonts\private\LEELAWDB.TTF fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\cs-cz\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_MAK-pl.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Common Files\microsoft shared\ink\sk-SK\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-console-l1-1-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\demux\libsid_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTrial-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\dbghelp.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-utility-l1-1-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\Assets\tinytile.targetsize-48_contrast-black.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\VideoLAN\VLC\locale\bg\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\fi-FI\View3d\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Transit\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\plugins\video_chroma\libyuy2_i422_plugin.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ul.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\7-Zip\7-zip.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\api-ms-win-core-file-l2-1-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Windows Multimedia Platform\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Windows Photo Viewer\ja-JP\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Web Server Extensions\16\BIN\FPWEC.DLL fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageAppList.targetsize-72_contrast-white.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL089.XML fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l1-2-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageAppList.targetsize-60_altform-unplated_contrast-white.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ZuneVideo_10.19071.19011.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\CANYON\THMBNAIL.PNG fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\listening.slk fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\ko\System.Windows.Forms.Design.resources.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ZuneVideo_10.19071.19011.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\contrast-white\SplashScreen.scale-125_contrast-white.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\Mozilla Firefox\gmp-clearkey\0.1\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\api-ms-win-core-handle-l1-1-0.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Assets\Store\Square150x150Logo.scale-400.png fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Shell\Themes\Glyphs\Font\WeatherColorIcons.ttf fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\eu-es\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\System.Security.Cryptography.ProtectedData.dll fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\tools\@1x\themes\dark\how_to_decrypt.hta fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Java\jdk-1.8\bin\jarsigner.exe fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-pl.xrm-ms fb128dbd4e945574a2795c2089340467fcf61bb3232cc0886df98d86ff328d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ZuneVideo_10.19071.19011.0_neutral_split.scale-125_8wekyb3d8bbwe\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:4460
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5b7fd97a35976c9118be817823829f526
SHA1998ea095d3c86250387ee6f695db10e924bb8c5a
SHA2567257d39016da3fad0cbd8e3be83f307b6379bf7a9d4f25c5a1c55c3756ebfc6d
SHA51258f21ba364d109fe746ec54cd01c7eefac983dd9351d93fde067e40d9c5672ca1bac934d9b5800db8c28458b230b263307a6c7b0efc4c1ebd40ed9086472e34e
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Filesize
11KB
MD5902a649f6583576859abc1cf02151fb7
SHA1eb4cce90c9674e53f747a51f44605ba9b13047f7
SHA25650504926784d979a7e2e717123a936a9a40e88ec319bbe0cfc0fafb32087a991
SHA5120e0b0f37919b9d8283cc0808dabad776c7046a07adebef31ef0ad3dccd4a70e1ec4c4338eb8e938ccb23cda64a2c3a695cfe779a38080989e71c5d607c65da02