Analysis
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max time kernel
149s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
29/05/2025, 10:01
Behavioral task
behavioral1
Sample
241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe
Resource
win10v2004-20250502-en
General
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Target
241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe
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Size
64KB
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MD5
f76ceb54bff59e4541d510966d158d6e
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SHA1
56c4adf27b959a5787bc26492a0ceca44ddabccc
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SHA256
241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163
-
SHA512
c9898096e88690bdbbdc573f1318aac62785785ba27a81efae3ebb3c4e04891566b571479d4a242e5479df30b5aa92e9cdcccbbfc421239b06b4cb9b32f96c55
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SSDEEP
1536:s7ZppApdII+49101NGII+49101t+ZGtK1+ZGtKP:spWpRGOGaZGtKgZGtKP
Malware Config
Signatures
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Cosmu family
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Detects Cosmu payload 2 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral1/files/0x00090000000227cb-1.dat family_cosmu behavioral1/files/0x000300000001f0e6-5.dat family_cosmu -
Renames multiple (5039) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.Primitives.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.PerformanceCounter.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.IO.Packaging.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-1.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHLTS.DAT.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\PROOF\LTSHYPH_FR.LEX.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Design.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\cs\UIAutomationClientSideProviders.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\include\jawt.h.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Median.xml.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\System.Diagnostics.EventLog.Messages.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\da.pak.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\jre\legal\jdk\dom.md.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-pl.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ul-oob.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-oob.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\fr.pak.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Controls.Ribbon.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsFormsIntegration.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jre-1.8\bin\sunmscapi.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Common Files\microsoft shared\ink\de-DE\InputPersonalization.exe.mui.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\id.pak.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ul-oob.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019DemoR_BypassTrial180-ppd.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\basicelegant.dotx.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\ONFILTER.DLL.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\7-Zip\Lang\yo.txt.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ppd.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Forms.Design.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ja\System.Windows.Input.Manipulations.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\lib\ant-javafx.jar.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-ul-phn.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-ul-oob.xrm-ms.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\WindowsFormsIntegration.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\dxcompiler.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office15\pidgenx.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONCHARTCOMMON.DLL.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\PowerPivotExcelClientAddIn.tlb.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\Microsoft.NETCore.App.deps.json.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsFormsIntegration.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\MSIPC\ru\msipc.dll.mui.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Linq.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationClientSideProviders.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClient.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\zh-Hans\ReachFramework.resources.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-file-l1-1-0.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\root\Office16\ExcelInterProviderRanker.bin.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\7-Zip\Lang\kaa.txt.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Common Files\microsoft shared\ink\pl-PL\tipresx.dll.mui.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.runtimeconfig.json.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\System.CodeDom.dll.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe File created C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-3102-0000-1000-0000000FF1CE.xml.tmp 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe"C:\Users\Admin\AppData\Local\Temp\241eafe0509458d94b68bff75fd8ad2c8d13e67bdcafe579ada2f7736c11a163.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1996
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
64KB
MD54de0531bc4be24cd59663898d0869361
SHA1979bea5520b05bc05b59410220620be03b2008ec
SHA25694c0fc745f7a90483db79cc375cd77ef1862235ec258b734632bbf96348c2a59
SHA512d1347d33a8c7068b9e0a29ae360c512c73764c6d5cf866929d04002662860841abca11a08826ad1adb25f35c21f212a5a417271995404310401aa659545c76ec
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Filesize
145KB
MD5b8e2285d1c3119fa77079f23ac8414f3
SHA1e81cd8155cdc8af8ae37f9337c396b8949a7ab2e
SHA25684143f1426cd2dc4c2c8c4161722dc9b6f918318cb238d3a4952e491fc627aac
SHA5120ce4290e6570a837bb20708e3e3ed1d943f01388c9e58f7512c6cfb8708cd3c9ce6cc94542b78448b8e0498e1a6dadb19fc29a0c25cad56012ee6b483bbcb222