Analysis
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max time kernel
150s -
max time network
145s -
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, 08:18
Behavioral task
behavioral1
Sample
24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe
Resource
win10v2004-20250502-en
General
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Target
24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe
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Size
189KB
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MD5
cc8e433070ebf256f0eedc4cfd2d94e3
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SHA1
78d1cd0ecc0331b96de41e9f04666d300e233d10
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SHA256
24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b
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SHA512
75a498572e825a1bb5ebdd50dcc85f269337ff6fdf588b89a543edfcb60dcf904c553b37e65be530bc6d5a751af5f17a5a47024a4a23ae1c4fdd946a94ddbec8
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SSDEEP
3072:spWpsBsqrNkMzN0mx7Sr6zBsqrNkMzN0mx7Sr6z:NWB9nPB9n/
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/0x00060000000236f9-1.dat family_cosmu behavioral1/files/0x000400000001eea5-5.dat family_cosmu -
Renames multiple (4691) 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\ProPlusVL_MAK-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.IO.FileSystem.DriveInfo.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationUI.resources.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\jvm.hprof.txt.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Integration\C2RIntLoc.en-us.16.msi.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.runtimeconfig.json.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-file-l1-1-0.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.cpl.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Channels.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\bin\gstreamer-lite.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\cryptix.md.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\lib\security\cacerts.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTrial-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-80.png.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Annotations.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\ko.pak.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\FPA_f33\FA000000033.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Luna.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\OART.DLL.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\ucrtbase.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\lib\security\java.policy.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_COL.HXT.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-xstate-l2-1-0.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\lpklegal.txt.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\LICENSE.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_Grace-ppd.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\mscss7cm_es.dub.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Common Files\System\msadc\msdaprst.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ppd.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-ppd.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Net.Http.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Trial-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription4-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Grace-ppd.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ul-phn.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Common Files\microsoft shared\ink\tiptsf.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\pt-PT.pak.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\vcruntime140_1.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\wsdetect.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-filesystem-l1-1-0.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-pl.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\TAG.XSL.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-white_scale-140.png.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.IO.Pipes.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.15\pl\PresentationUI.resources.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Google\Chrome\Application\133.0.6943.60\Locales\nb.pak.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklist.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.Interop.Excel.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Encoding.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_sv.properties.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\bin\jsound.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe File created C:\Program Files\Java\jre-1.8\bin\vcruntime140_1.dll.tmp 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.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 24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe"C:\Users\Admin\AppData\Local\Temp\24f2eb90845e42c7b83d4cc2d690e14e29881d033253741af02d9a10b768b94b.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5000
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
189KB
MD56513880aedd653d644de4c595b34ed30
SHA11e3147fec60e2d351805a7f2fa816cddee315650
SHA256bcd2f62b3b12d45bb4651be30b0deec2ef8a85dcc8d1f46ca33b46447e97c7f6
SHA5123289f963dc95dddaa44d10d35df4ca7e6bf3cd2b97c55fdc3c637beb03e0695b4ece018810d8d8e14fac0fcaa86cbd296f22a22ca1235a0cdb5f3b741475b2c7
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Filesize
274KB
MD5355fa9966c6c790fa6e76ca3efe298fa
SHA1b0dc95e4cff6f07c1d91971c308a75d2b7a0968a
SHA2564abc7efb894ee1c44fd838c284d553b58a55f840e7c60f0d68ff0b99e68141d9
SHA5125c33022545f47e8ecd87b5a0efbf80aeb0623928d1cb840719fa303a35a208ced0105fa1ef1ff533934b849bfd255d6b74baf70197fc93dc6034bf79c95879a8