Malware Analysis Report

2025-06-16 06:31

Sample ID 250515-qtrlnshk7t
Target f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e
SHA256 f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e
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

f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e

Threat Level: Likely malicious

The file f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e was found to be: Likely malicious.

Malicious Activity Summary

discovery ransomware

Renames multiple (5192) files with added filename extension

Drops file in Program Files directory

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-05-15 13:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-05-15 13:33

Reported

2025-05-15 13:36

Platform

win10v2004-20250502-en

Max time kernel

149s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe"

Signatures

Renames multiple (5192) files with added filename extension

ransomware

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-pl.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-pl.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\1033\ONINTL.DLL.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-fibers-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Linq.Queryable.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\ChakraCore.Debugger.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\tabskb.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Encoding.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.ThreadPool.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationClientSideProviders.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.XLS.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\MSO20SKYPEWIN32.DLL.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.cs-cz.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InkObj.dll.mui.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationTypes.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jre-1.8\lib\deploy\messages_it.properties.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\mshwgst.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.DiagnosticSource.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jdk-1.8\legal\jdk\cldr.md.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-ul-phn.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-pl.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XDocument.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ClickToRun\ApiClient.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.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\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\fre\StartMenu_Win8_RTL.mp4.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\it\System.Windows.Forms.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Text.Encoding.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\PresentationUI.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\bin\dt_socket.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ul.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\System\Ole DB\it-IT\oledb32r.dll.mui.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Extensions.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationUI.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationClientSideProviders.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-pl.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.ProgressiveProcessing.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\ipsnor.xml.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\System\Ole DB\oledb32r.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Threading.Channels.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Xml.XDocument.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\fr\UIAutomationProvider.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\zh-Hant\System.Windows.Forms.resources.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jdk-1.8\lib\tools.jar.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jre-1.8\legal\jdk\jpeg.md.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ppd.xrm-ms.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Common Files\microsoft shared\ink\ipscsy.xml.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Core.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Java\jre-1.8\bin\jsound.dll.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A
File created C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe.tmp C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.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\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe

"C:\Users\Admin\AppData\Local\Temp\f55610b9430d867482523986c04d0dd9bf2bf50380f7b5bfec0f8cb36148594e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
DK 2.19.173.8:443 www.bing.com tcp
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 d52c78c45c3679bd9bdcf664ca2bb7cd
SHA1 0dc0a625c91a54e2b60ee4390929b28ef85d80c7
SHA256 ce59a2ff7cea8b1c6cb43a091c3f2892384c541c420134815b53584ad888e3c2
SHA512 a0ee1c724c331c4e593de780b22a7ba94f4cda209a08177679c8f2365ffbcc08bd2aead2388fa125404d39ae5e029e65525e03b2b8f97e666952a15784c07eb7

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

MD5 45dd6e9cfd00465f4e2941aeb8bfa979
SHA1 3c4ed60017b5cc2650f432c7b436aee4d3c44e13
SHA256 715a37c7b9a19920a20574c0df96a706e1f623f4669f06da0418858242497c9a
SHA512 1d0181d3014adf51a2c496d96e48edcb27861808dfafa84676f4095c5c866a003d2745c02f54004048e753211fe0a62c3fdd3ad894bee149fc4c043004519ee8