Analysis
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max time kernel
150s -
max time network
102s -
platform
windows11-21h2_x64 -
resource
win11-20250502-en -
resource tags
arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system -
submitted
29/05/2025, 11:58
Static task
static1
Behavioral task
behavioral1
Sample
7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe
Resource
win11-20250502-en
General
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Target
7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe
-
Size
68KB
-
MD5
956c13e1f38ff53f49a4e7097a753132
-
SHA1
0163a9811accc1264051214da0417de81063c2e3
-
SHA256
7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c
-
SHA512
54b850c4e2b0889d264cd2927c4660e877714286a5db87937f589867b2b785c983bc54c9feefd44f92a80338bd254fce1405994ed748f16e714bead63642cbab
-
SSDEEP
768:uZ4FLz8ae+rOn8ae+rO+4jMtfFXYi8jy2ChKuveS5LMjvwZvWXGh0KaKsyRQWOUD:uGII+4jAdCjHKPn8XGSfYRQWX
Malware Config
Signatures
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Cosmu family
-
Detects Cosmu payload 1 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral2/memory/3776-1085-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu -
Renames multiple (5209) 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\7-Zip\7zCon.sfx.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.ZipFile.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ja.properties.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\lib\hijrah-config-umalqura.properties.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN111.XML.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationProvider.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jdk-1.8\bin\ucrtbase.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\bin\w2k_lsa_auth.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\legal\javafx\libxslt.md.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Grace-ppd.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.DispatchProxy.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Handles.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-utility-l1-1-0.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\index.win32.bundle.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Primitives.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationCore.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\zip.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\lib\net.properties.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\sqmapi.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\FUNCRES.XLAM.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\vfs\Fonts\private\WINGDNG2.TTF.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Xaml.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\lib\security\policy\limited\local_policy.jar.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\sbicuuc58_64.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-ppd.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ppd.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG.HXS.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\officestoragehost.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-phn.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\rsod\dcf.x-none.msi.16.x-none.boot.tree.dat.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\es\PresentationUI.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.NonGeneric.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\fr\PresentationUI.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\ja-jp.xml.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Retail-ppd.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\msvcp120.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\MSIPC\hr\msipc.dll.mui.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Templates\1033\AdjacencyReport.dotx.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\WindowsFormsIntegration.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jdk-1.8\legal\jdk\ecc.md.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART12.BDR.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Common Files\System\Ole DB\de-DE\sqloledb.rll.mui.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\PresentationFramework.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-oob.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_MAK-ul-phn.xrm-ms.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Office16\OFFRHD.DLL.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Primitives.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\mscorrc.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Input.Manipulations.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\osknavbase.xml.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ko\System.Windows.Input.Manipulations.resources.dll.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\mesa3d.md.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial Black-Arial.xml.tmp 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.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 7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe"C:\Users\Admin\AppData\Local\Temp\7db974c0e72757c15415b821f6a22764c00093dce7273ab41f6b8bb91b3f063c.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3776
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
69KB
MD553379a10e4f85044dbcab1d0b2067e10
SHA197026bd2b9418385b4cf89c2a8c19ad98c79c3f5
SHA2566114a96542c1ebf6667e64f9f957cc26331fedc64629e2d234ca644604aead55
SHA51221f5a6a233c10bb39af3802ded84c23f2bd9efdc77e809411e72ad19401abae4b955bfd3445973200c6d0abce786ed942fc9948d5abd85385f78091f22c95114
-
Filesize
154KB
MD5fd8859155a526194680e62c1d56bf8af
SHA1ddf992b9e3635970313968a5a226909d6991064d
SHA2567e597e69455dfbe295ddc9c2b5eca45e15e7ed14e53b92d28258180ec90fb153
SHA5124218dc25511c53e49a2c188b48abf3c2acfa6549e20cfb15fafcdf52325819a8a7cd47026ffab7ba304a553de9203441c978dc358c69f74e8fb616c636b8c3ab