Analysis Overview
SHA256
abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f
Threat Level: Known bad
The file abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f was found to be: Known bad.
Malicious Activity Summary
Detects Cosmu payload
Cosmu
Cosmu family
Renames multiple (2087) files with added filename extension
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Unsigned PE
MITRE ATT&CK
Enterprise Matrix V16
Analysis: static1
Detonation Overview
Reported
2025-05-30 02:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-05-30 02:31
Reported
2025-05-30 02:33
Platform
win11-20250502-en
Max time kernel
62s
Max time network
39s
Command Line
Signatures
Cosmu
Cosmu family
Detects Cosmu payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Renames multiple (2087) files with added filename extension
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.ZipFile.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\ta.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\tabskb.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Google\Chrome\Application\133.0.6943.60\d3dcompiler_47.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\bin\idlj.exe.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\UIAutomationTypes.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\de\ReachFramework.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\ug.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationTypes.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ru\PresentationCore.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_altgr.xml.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Thread.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hu-hu.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Principal.Windows.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\Microsoft.Win32.SystemEvents.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\de-DE\rtscom.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\System\ja-JP\wab32res.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.Unsafe.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Intrinsics.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Threading.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\it-IT\mshwLatin.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Net.WebHeaderCollection.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Runtime.Extensions.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationFramework.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\7z.sfx.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\nl.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\hwrenclm.dat.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\ru-RU\tipresx.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processenvironment-l1-1-0.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\WindowsBase.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ko\WindowsBase.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\ku.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.he-il.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Runtime.InteropServices.RuntimeInformation.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.ResourceManager.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\WindowsFormsIntegration.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\fr\UIAutomationClient.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\fr\WindowsBase.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\pl\WindowsBase.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Internet Explorer\en-US\ieinstal.exe.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcr120.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\System\Ole DB\en-US\sqloledb.rll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.NonGeneric.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\eu.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\lt.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipTsf.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationCore.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\io.txt.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-2-0.dll.tmp | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.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\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe
"C:\Users\Admin\AppData\Local\Temp\abc8e361a8acfeeaaa247945b4ca4e0f6378334e97f4bb6ea23f4951d3976b3f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 199.232.214.172:80 | tcp |
Files
C:\$Recycle.Bin\S-1-5-21-1178639776-3244803473-3821071008-1000\desktop.ini.tmp
| MD5 | 8c36b99d3f367549fdae735bb6dcdb8b |
| SHA1 | 19b85f01c7c2f47316de8804ce30745626f847e9 |
| SHA256 | 7cd04bcdfed9d591be84cb2f24231bcf0b2d77610cc2731af758127efba2a877 |
| SHA512 | 88116117b45f48bf147cc7200218a9149e84f8360cd2bed7bea1851e146ba31a56f67ddb5ad6214af80e1edb6690606b3f5eb126dbbd33e0365e9b4f327ec3c7 |
C:\f8efe770fb160c3e4e\2010_x86.log.html.tmp
| MD5 | e951c92e0922de3e67f12a1ce7a1c777 |
| SHA1 | 4b825898cdcf67a68fad81cf47e2a0f27da999d6 |
| SHA256 | b9be90caf2772c842ad48485ce97d94a707c8b19a8a1b6a40dcd09ba15d586aa |
| SHA512 | 3b198ca7781ab9dd09f7311ad367c39f95bde376e0cffd11b68031db30730ecf84bbada66cfcff64b6d6bd05d409de054ee10f588759e15fc2becaa5fc1f8a38 |
memory/3248-1187-0x0000000000400000-0x0000000000407000-memory.dmp