Analysis
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max time kernel
150s -
max time network
146s -
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
Static task
static1
Behavioral task
behavioral1
Sample
1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe
Resource
win11-20250502-en
General
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Target
1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe
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Size
66KB
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MD5
cd658d188b84374422d8941d05503cc5
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SHA1
4fd03294e2eb761d99cbee2b006d25c3f891729e
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SHA256
1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3
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SHA512
5c221820da29899167c39b70f3281ad12168f4c3d1fe44814fa35b9ded491c5c40abdee5bd4876f5538bd15d1e0899323b52927b28015794e7e38206a2cb2987
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SSDEEP
384:hAg+5OCZ4W6/KWLsqmFae+rOAqmFae+rOIW2JhuC2JhuOxAxoraygJmMvJvx:uZ4FLz8ae+rOn8ae+rOoJhiJhY9
Malware Config
Signatures
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Cosmu family
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Detects Cosmu payload 1 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral1/memory/4512-791-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu -
Renames multiple (4871) 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\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ppd.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_COL.HXT.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\legal\javafx\public_suffix.md.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART14.BDR.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrfralm.dat.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jre-1.8\lib\deploy\messages_sv.properties.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Trial-pl.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_COL.HXT.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\XLSLICER.DLL.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\mscss7fr.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-process-l1-1-0.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\de\UIAutomationClient.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-string-l1-1-0.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\fontmanager.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jre-1.8\lib\management\jmxremote.access.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\ONWordAddin.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\7-Zip\Lang\uk.txt.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationClientSideProviders.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jre-1.8\bin\jfr.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONCOMMON.DLL.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\MEDIA\CAMERA.WAV.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\PROOF\msgr3jp.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-console-l1-1-0.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\MEDIA\PUSH.WAV.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\redshift.ini.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\eventlog_provider.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\cursors.properties.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Grace-ppd.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\7-Zip\Lang\hr.txt.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Runtime.Serialization.Json.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\PresentationUI.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\ro.pak.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.OAuth.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\Microsoft.VisualBasic.Forms.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\D3DCompiler_47_cor3.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationClient.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-pl.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Common Files\microsoft shared\ink\micaut.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\lib\deployment.config.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-pl.xrm-ms.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Console.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\pt-BR\ReachFramework.resources.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\zh-CN.pak.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_logo_small.png.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Microsoft Office\root\Office16\OWSSUPP.DLL.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsrom.xml.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Common Files\microsoft shared\ink\pl-PL\tipresx.dll.mui.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Pipes.dll.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe File created C:\Program Files\Java\jdk-1.8\legal\jdk\jcup.md.tmp 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.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 1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe"C:\Users\Admin\AppData\Local\Temp\1705207dec682ebd7df90665c61d3283a7c3ec84ae3fe21cdda0c940601855a3.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4512
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
66KB
MD5edbe4d583f2a516e7f4c883a11ff9f18
SHA11b807679a2d9caf661f3ae772b3b999da8e549b9
SHA256c9f68b728bdd6dfe300d98110f51f6f3c93b0d4cc0972c572f9f483988fc4bdc
SHA5120c55366fbfa0fe50a0c65c2f3ce7f42ec5f85c0ddada8e2d189d45d61a7b9a2ea9be85200ff7de2cf51f79570f26f81732fd3a351afb3696684be9044cc53cab
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Filesize
147KB
MD5e65d35fb4c1f01e8b865b4ed79582c1e
SHA14e6446f8fd404bfac6c4800bce34cdda7a3d814d
SHA256fe009a3b2f61127346f0e780c80c42e716a02987019e00ed06d013fa945c466b
SHA5129d97d9b24eab88afdaa02fe9d4da85ad950ebeb29d82f96edf11cc796b67ef52ed028ee8582e60bd5f3b031e25a84236c9113ea06140a891d35c55aacd6db1b6