Analysis
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max time kernel
149s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
05/06/2025, 08:17
Static task
static1
Behavioral task
behavioral1
Sample
aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe
Resource
win11-20250502-en
General
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Target
aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe
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Size
27KB
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MD5
4a79767c29563c4595e4fd9bc2205446
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SHA1
e615101dcfa8ed975b56c53481dda9b51bc9b957
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SHA256
aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343
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SHA512
4358b90a6960956625764d4fe9c841274b39f3e88321adf9e24bc40eca3e9be5baea6246fceaad3a41861fc5ba36a2c73d931eadc2d6f577bdc58ed39d255c73
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SSDEEP
768:uZ4FLz8ae+rOn8ae+rO44Ph4PmbX8xsni1xDbX8xsni1xQ:uGII4ehem7AP7A0
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/3132-797-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu -
Renames multiple (5205) 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\ProPlus2019MSDNR_Retail-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Grace-ppd.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklisted.certs.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Integration\C2RManifest.PowerPivot.PowerPivot.x-none.msi.16.x-none.xml.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-stdio-l1-1-0.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.runtimeconfig.json.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ul-phn.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\PROOF\MSSP7ES.dub.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-1-0.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\Microsoft.VisualBasic.Forms.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\UIAutomationProvider.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\swidtag\Microsoft Windows Desktop Runtime - 8.0.15 (x64).swidtag.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ppd.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-ppd.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Redshift\lib\OpenSSL64.DllA\libeay32.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.Design.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Templates\1033\SalesReport.xltx.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ja\PresentationCore.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-math-l1-1-0.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp2-ul-phn.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-140.png.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIsvApi.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Input.Manipulations.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\PenImc_cor3.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ko.properties.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-pl.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\bin\ktab.exe.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jre-1.8\lib\management\jmxremote.access.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_KMS_Automation-ul.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ANALYS32.XLL.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\desktop.ini.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\ru\UIAutomationClientSideProviders.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\management\snmp.acl.template.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-100.png.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\rsod\proof.en-us.msi.16.en-us.boot.tree.dat.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\it-IT\msinfo32.exe.mui.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jre-1.8\lib\cmm\GRAY.pf.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Grace-ul-oob.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\WindowsBase.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Input.Manipulations.resources.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Grace-ppd.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-pl.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-ppd.xrm-ms.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\offsymxl.ttf.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Threading.AccessControl.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\fontconfig.properties.src.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Java\jre-1.8\bin\server\jvm.dll.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe File created C:\Program Files\Microsoft Office\root\fre\StartMenu_Win8.mp4.tmp aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.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 aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe"C:\Users\Admin\AppData\Local\Temp\aa672896703c6c2e8a3dceb6a2c43b0c62e5ea83c369824e45c927c658b4c343.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3132
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
27KB
MD5245a538b9257120d852dc27a6bf99b8e
SHA19e0e7eb85abdfeeb2da3a838402ed4d1969076cf
SHA256b52f78180050e32faf8c112780ebdec28a604753a840f361df4425f7921a9a52
SHA51296b6c2c7ac632b24ffc59314920c28de09fbfb9de510be155cb37a99abe1734b01526fa9d6fea18802c3978c3caecae3cb69fc091439cd480d9a19ec538975bc
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Filesize
108KB
MD5b29feb609272401dafd21421b33bce38
SHA1e2fdf3b09b799258f54e3c3373ca938343757cc6
SHA256a306c3bcd9e89c2f4e7464dfe456fc8270d3c713d3a6564c3471f3e91ad8adfe
SHA512b5caaea04f0bde1e8d95e04de68191b361cc74ebe10d83a4063e558c0843f171306dac1924c2002c339856b380c7e4cf9f13b32988918b2e09d276a3c51b5dd3