Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/08/2026, 01:54
Behavioral task
behavioral1
Sample
2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe
- Size 288KB
- Sample260828-cbpgpsssew
- SHA256 8cf9ae57444bbe985aeaffbe36cacd59b68bee1b305091758230b487e4befff6
- MD5 f26f113fa5b86f5cad79962b809bf6c7
- SHA1 01d3b45f18ba874fe80db5568b41a8f4d5528f7d
- SHA512 8b42724d9575bb6c85013aaaaf3ccbab757ce3a8a7c5e2f80ec787a69cad55468bf0e7a35c67203e0ac067b60136d90a32898c5eb4dc32ac7bd6441333da63b8
- SSDEEP 6144:pFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz1:efBQGH6SfwoAX+U4F
- TLSH T1F35401817AA2D8B3C4429A3148A78F6197377D139A65D203B7AD1F4B2F713D09B7A302
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Cosmu payload 3 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral2/files/0x000d00000001c586-7.dat family_cosmu behavioral2/files/0x000d00000001c58f-82.dat family_cosmu behavioral2/files/0x00070000000188c5-193.dat family_cosmu - Enumerates connected drives 3 TTPs 10 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\7-Zip\7z.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA109.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCXA03B.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCXA1EF.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCXA237.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXA187.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA11C.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA1AA.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA11B.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iexplore.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCXA200.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX9F8B.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA108.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA143.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA1CE.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCXA211.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\readme.1xt 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA12E.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\RCXA235.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA11A.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCXA25B.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.cab 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA12D.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCXA213.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCXA259.tmp 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.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 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-27_f26f113fa5b86f5cad79962b809bf6c7_elex_rhadamanthys_smoke-loader.exe"1⤵
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
PID:4144
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 338KB
- SHA256 6a6bfab3c8a22b3d93cd9e605fbd8b7ec3d347abd5556829f503d36f864b795c
- MD5 b3b292b49f8263e0b894760341521b14
- SHA1 337dd896c5d5965b39f34232288ef917e049dd03
- SHA512 a87ca14b13740ed2d63bc6d7af2514dc343b47ba3fd721017b1c63915b4a9a612c9a20959bcbad6b61531a591293b0509a2d6821395bd0eee9ce817ab26b7ed4
- SSDEEP 6144:kFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:DfBQGH6SfboAX+U4
- TLSH T1D27401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A251
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCXA11C.tmp
- Size 288KB
- SHA256 4ffae2223fe42363b114112bcd093d266600fb82f16e2b2826ad7cd382e722ca
- MD5 565241c49c25ad9787a0575804ed025a
- SHA1 b106b152520417f1fc3f1f960e845d97efd6bff3
- SHA512 15f3b521b641a5cb4d8156b4be570672c25277c72afaaf4fc3f6e34becfb10f8f13958eb5d3eed93149908ea422343b3632b65b7a49742d7843956c56b7972c3
- SSDEEP 6144:AFlKgzelZNQSBQGH/CSpWqTVoAXjiU4bz:3fBQGH6SfRoAX+U4
- TLSH T1C75401917DA2D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCXA201.tmp
- Size 288KB
- SHA256 99b0f6e9967aec09f82f59c0725cc4861347f1bfa55a8cf0523f99c17e58c9ab
- MD5 f51fa1d2bb512589def023f1beec2f9c
- SHA1 6926ae8fe69639fb959331c810c06d1af7f297e0
- SHA512 f6b5af58521c8ce44f5404727c3665f2c5f69daeb55bee143c6cfebf8f188cb099b1b22bd8fc16ebb6f8156722ae4a5b9516913bd96d0b26a4af2e212fe05c00
- SSDEEP 6144:cFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz:7fBQGH6SfooAX+U4
- TLSH T1835401917DA2D8B3C0419A3188A6CBA197376D139A65D203FBAD1F4B2F713D49B7B301
- MD5 SHA1 SHA512 SSDEEP TLSH