Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/09/2026, 22:41
Behavioral task
behavioral1
Sample
2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe
- Size 288KB
- Sample260920-2md8jsdf36
- SHA256 6bcc4a842fa49729752b4539e75fa55e33e761afa9c3a2c2e4ec4a7d6fb34453
- MD5 f120d13544262963ecca11b4893007b1
- SHA1 84c6fe197c35537d86bbc341df9da6bea06c4ddb
- SHA512 0062bc2df40d5cd090e187dd331f840f3a80938a1fff1016f7b0a371646dc6bceb4a9ab4a0af24c05f359be74c32887e8808ef44ac36515ab0cd0232cad1d78f
- SSDEEP 6144:RFlKgzelZNQSBQGH/CSpWqT8oAXjiU4bzN:GfBQGH6SfYoAX+U49
- TLSH T1FD54F1917DA2D8B3C0419A3148A6CBA197376D139A65D203BBAD1F4B2F713D49B7A302
- 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/0x000c00000001c5a2-7.dat family_cosmu behavioral2/files/0x000e00000001c5a5-82.dat family_cosmu behavioral2/files/0x0005000000018977-193.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) \??\M: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Java\jre-1.8\bin\jabswitch.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX70E0.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX6E5E.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX7105.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX70AE.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX6E6F.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX6EC6.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX6D4A.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX6D17.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX6EF8.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX709C.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX6F7B.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ielowutil.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX7104.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX70AD.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX6D39.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX6EE8.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX6FCA.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX705C.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX6ED7.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX6E2C.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX6F19.tmp 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.cab 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-09-20_f120d13544262963ecca11b4893007b1_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 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-20_f120d13544262963ecca11b4893007b1_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-20_f120d13544262963ecca11b4893007b1_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:2520
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 339KB
- SHA256 1bf26ad11d8981671ced7603b6b50760bef735512a831244b3ffe365baae4f5d
- MD5 6d2019095238e8141e59ecf2417da48d
- SHA1 f0277a196409fcfd0a47cfb3227f784b7e0a6dc1
- SHA512 4f761332f7327b5f6bf1f675f46da5ad7e6aed4f7ebfc748d96c055864bf27a804dbdb2502110cd885479b9b2af78b991ea6ab10a1435d5b34fee6762a9e1119
- SSDEEP 6144:OFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:pfBQGH6SfboAX+U4
- TLSH T1387401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A351
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX6E5F.tmp
- Size 288KB
- SHA256 5e8206a6eb56f3585fde446d2c24b300c5b9dbdd00e631b18770f9f3961586b7
- MD5 71bc613fee4fb996ca343928cd863776
- SHA1 d7f36badab03d13b7fb744a35d51d42ba6261b64
- SHA512 3647f3e455cc29094f15811f207345cf8ae378d1eefd1666e82e670c4f4d623d6151e8c4606f4b80b576097cb9187a69dd71e00eb379cd2c27ccae68d4baaffa
- SSDEEP 6144:iFlKgzelZNQSBQGH/CSpWqTVoAXjiU4bz:lfBQGH6SfRoAX+U4
- TLSH T1AE5401917DA2D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX705D.tmp
- Size 288KB
- SHA256 b16aca571cea1257592dd9b6680f3fac68c59a68d6c5a4ecb386a974e26155a9
- MD5 7aebb1b3c950b7cfc496997e4203e9c8
- SHA1 d8d1ad2b23099c7b6323662023fbf7367349f355
- SHA512 d71ad48ed5336a3f0e915ae4501c28abf60c5e4e59e8f4a01f074b767591e6f669beb06cfd6ebf8e14ea29343f9cf4321d9947c12e8661b440af6fe0f692da4c
- SSDEEP 6144:mFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz:BfBQGH6SfooAX+U4
- TLSH T1255401917DA2D8B3C0419A3188A6CBA197376D139A65D203FBAD1F4B2F713D49B7B301
- MD5 SHA1 SHA512 SSDEEP TLSH