Malware Analysis Report

2025-06-16 06:31

Sample ID 250515-h72d2aap8y
Target 4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760
SHA256 4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760
Tags
discovery ransomware
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V16

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760

Threat Level: Likely malicious

The file 4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760 was found to be: Likely malicious.

Malicious Activity Summary

discovery ransomware

Renames multiple (5197) files with added filename extension

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-15 07:23

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-15 07:23

Reported

2025-05-15 07:26

Platform

win10v2004-20250502-en

Max time kernel

149s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe"

Signatures

Renames multiple (5197) files with added filename extension

ransomware

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-heap-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\fr-FR\mshwLatin.dll.mui.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationTypes.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Forms.Primitives.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\pl\UIAutomationProvider.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\et.pak.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\bin\vcruntime140_1.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\lib\hijrah-config-umalqura.properties.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSM.OSM.x-none.msi.16.x-none.xml.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_COL.HXC.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-process-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Templates\1033\OriginLetter.Dotx.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.Primitives.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-private-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11wrapper.md.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusDemoR_BypassTrial365-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART3.BDR.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Common Files\System\msadc\fr-FR\msdaprsr.dll.mui.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\legal\javafx\webkit.md.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp2-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\createdump.exe.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\mscordaccore_amd64_amd64_8.0.1525.16413.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationTypes.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\cs\System.Xaml.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Internet Explorer\uk-UA\iexplore.exe.mui.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-bridge-office.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\7-Zip\Lang\zh-cn.txt.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jre-1.8\legal\jdk\freebxml.md.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ATPVBAEN.XLAM.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ServiceProcess.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationCore.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jre-1.8\legal\jdk\mesa3d.md.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_K_COL.HXK.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Common Files\microsoft shared\OFFICE16\LICLUA.EXE.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Common Files\System\msadc\msdaprsr.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Design.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationTypes.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ko\System.Windows.Forms.Primitives.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-80.png.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\7-Zip\7z.exe.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.CodeDom.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ConsumerSub_Bypass30-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-180.png.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-100.png.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Templates\1033\QuizShow.potx.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\bin\schemagen.exe.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\bin\WindowsAccessBridge-64.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.Common.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Java\jre-1.8\legal\jdk\joni.md.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_Subscription-pl.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL.HXS.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\TextConversionModule.dll.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A
File created C:\Program Files\7-Zip\Lang\sa.txt.tmp C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe

"C:\Users\Admin\AppData\Local\Temp\4126bdb621eed307d86b121fe11f60cd2c38509197a20ec987b54f6f0c6bf760.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 c.pki.goog udp
FR 142.251.37.35:80 c.pki.goog tcp

Files

C:\$Recycle.Bin\S-1-5-21-186956858-2143653872-2609589082-1000\desktop.ini.tmp

MD5 1691204e5a64d173d9985f18cf8eaead
SHA1 d00f62444439a8c8a87aa552f8aada6b5271bc41
SHA256 9d0070b68f8855388d9b36713b9644b0323fcadd43d2882c5cefda4d07285c06
SHA512 f76e5e27aed241f4978518bbfe5456476c9d911a224ae968076ef8c4d4e2a30d2d515c107e9cf05459a7339e711d564bbce13be0ff028e401df78bfc6aa0937a

C:\d962f70874f5d4bfc1c6\2010_x64.log.html.tmp

MD5 46c9cdfeca7fdabc67401a2208ab76cb
SHA1 cb16ad8c84d19762b30fad18a0ae445f59806b93
SHA256 e2842b0b3733697b85fb2dcf088a13a6636cf9efefde1af5ba1eed73f7e8d15a
SHA512 0c323cd34a35e2a453bf5481f53d031639c7db7fc04b8f307a0443510af2caaa3247b8733fa913b8b0e39ae1bd095c22c6a2a339693f2c0d0ee3d56b0db5b345