Analysis
- max time kernel
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/08/2026, 06:36
Behavioral task
behavioral1
Sample
2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe
- Size 296KB
- Sample260818-hc8vmafm4s
- SHA256 6a9d40deda3882a7249d198894db588693944497fc2b84250c22d543bbf34444
- MD5 964029b584f937af4ede934445e363a7
- SHA1 841e34965defd9ac31d611ad882dfbfcc1c493f5
- SHA512 b0829c1bb04a9afe7ff2dad0981e68a2186bcf123be857ae2509a23552074d51bdb28444328f84aeda91cd49c8b176caee664178b6738a2d85a4464d8dc4a93f
- SSDEEP 6144:NFlKgzelZNQSBQGH/CSpWqT+oAXjiU4bz1:KfBQGH6SfyoAX+U4F
- TLSH T10554F1813992D8B2D041553188ABCFA1873BBC139A65D243F7D92F4F2EB13D4AB6B315
- 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/0x000c00000001c53c-7.dat family_cosmu behavioral2/files/0x000d00000001c545-82.dat family_cosmu behavioral2/files/0x0005000000018959-193.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) \??\J: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1079202589-886135813-2527035092-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iexplore.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX5ADE.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX5810.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5964.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5941.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX5821.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX59BC.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX5A45.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX59BD.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX5A76.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\RCX5ABC.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX57CD.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX59AC.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX5ACC.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX5831.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX59F1.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5978.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX5894.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5954.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX5AEF.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX5A14.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX5A87.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX57FF.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX57CC.tmp 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\WallPapers.jpg 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe File created C:\windows\readme.1xt 2026-08-18_964029b584f937af4ede934445e363a7_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 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1079202589-886135813-2527035092-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-1079202589-886135813-2527035092-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-18_964029b584f937af4ede934445e363a7_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-18_964029b584f937af4ede934445e363a7_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:2324
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 324KB
- SHA256 c7937481acf862a43a4f86386be08233a39e698dd2fd1443e04a5597e37c40e4
- MD5 61e7852dfce684f6d73521f0f820f1c9
- SHA1 8a1731d1258da1a2d6698a1e86d3061754ec1984
- SHA512 76251d14d2b8f9b93b6d94ca7bdb1a7b2a40ddac243b64daea41203699d473ff12e445b2c8c65a98b90172be6168906cf42f0e45e550442ee1f50c7df0f42550
- SSDEEP 6144:hFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:2fBQGH6SfboAX+U4
- TLSH T1F66401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A351
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX5964.tmp
- Size 288KB
- SHA256 8cb56912f2bcbb3f87620d8d6f59743f64e1ccd276e3c374eea2583cdf6c5613
- MD5 8b3e8edc86e5ea369343a35cf625ba06
- SHA1 ead7b3ea038ab961946321a7f36bde8282ed1b43
- SHA512 5187279a1e0091b1d88503cf17ec5848fd865e5a772e58212170269c18e17b8d35ef76c99b254159009bc071e6622dd184493eb230d099336c873df5f7192e45
- SSDEEP 6144:FFlKgzelZNQSBQGH/CSpWqTVoAXjiU4bz:CfBQGH6SfRoAX+U4
- TLSH T1835401917DA2D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX5A88.tmp
- Size 288KB
- SHA256 ae980478606f2ad5e2c220fe57baaec2405c8b38d9414af7b0bc283174a4c8b6
- MD5 8f2aafe07a4cb85e069e4cfa75450200
- SHA1 495af5844735061c45de24b4fe4ece3ca35b7d67
- SHA512 e1de634572b1b1096c923e0840c3c5ba2feb02492245e0f9feb9ce79e94c8d4bb43f994dace7cb3379a7f127025e3907a49811d82ae8c41d7de583597560c3b6
- SSDEEP 6144:xFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz:mfBQGH6SfooAX+U4
- TLSH T1935401917DA2D8B3C0419A3188A6CBA197376D139A65D203FBAD1F4B2F713D49B7B301
- MD5 SHA1 SHA512 SSDEEP TLSH