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
25/08/2026, 01:41
Behavioral task
behavioral1
Sample
2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe
- Size 284KB
- Sample260825-b39raawbnd
- SHA256 ac02a3b0e8e785ffb7eb766d6dc55980b8acb5cc23ab0111b510e572ba1d913f
- MD5 c5c58523360a8290f6592743f582d4dc
- SHA1 cce28b05c572ce5c2cc89e7f0b2bd809ad42a219
- SHA512 f6af9a570a3b3718d0c894bb1ad5ea252d0f6a355ac83d4b7b09e362fcbcbce3bcd4658a85866e3e263d17d64e93c42dce57a002723b82788897e2774ce4927e
- SSDEEP 6144:bFlKgzelZNQSBQGH/CSpWqTYoAXjiU4bz1:kfBQGH6SfUoAX+U4F
- TLSH T1295402457DA3C4B3D0414D3188E68BE19B7F6C137AA6E117FB9D0B4B1EB13844BAA361
- 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/0x000500000001b871-7.dat family_cosmu behavioral2/files/0x000d00000001c428-82.dat family_cosmu behavioral2/files/0x000700000001898a-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) \??\H: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX11D1.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX11E1.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXF77.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX1247.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXFDE.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCXFFF.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX117C.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX10DE.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX1102.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXFBD.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ieinstal.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX129C.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX1225.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX1104.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX1020.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX1136.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX11E2.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX1279.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX119E.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX129D.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX10E0.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX1103.tmp 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\jabswitch.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.cab 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-08-24_c5c58523360a8290f6592743f582d4dc_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 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_c5c58523360a8290f6592743f582d4dc_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_c5c58523360a8290f6592743f582d4dc_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:2424
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 322KB
- SHA256 0818096f7b045d2c221eb25fbfe347d314b4887f7b63907923514a8f28f83a25
- MD5 7050335679aa9ef410a1dad6c5c1c684
- SHA1 2243e83ea0d1c589cc0b82a9004331c86efe52ff
- SHA512 2b74a20775024856f16f03620472d446b243297add70de89a27d78df88ecab6c123304d6173ecab194320b7d31aae9d81462399260632de10ad4d1b4ca30ef4b
- SSDEEP 6144:4FlKgzelZNQSBQGH/CSpWqTyoAXjiU4bz:PfBQGH6SfeoAX+U4
- TLSH T19264F1457D93C4B3E0414D31C9E68AE14B7E6C037AA6E11BFF5D0B4B1EB13884BA66B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX10F1.tmp
- Size 284KB
- SHA256 807854dca4bd61f1cc9b31bf4e686f022137e9efbdf1b533dc8571219e0a839c
- MD5 1a3decca78084c8c95fa80a3a493e9f2
- SHA1 73fefe9aa78961abf3e26d4b46df18941d446fb2
- SHA512 9a4a3bfd77e762e8b9eea8c71038eed740f09036433449d67dfbb473f73d1e1e30ccf996ff5d0ab513c0ed33921e49a077693eee84c199dd0a300568d4c72ad8
- SSDEEP 6144:kFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bz:DfBQGH6SfdoAX+U4
- TLSH T10B54F1457D93C4B3D0414D31C9E68BE14B7E6C037AA6E11BFB5D0B4B1EB13884BAA6B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX1225.tmp
- Size 284KB
- SHA256 7076fed8568ae7cdd46e7fdf68e7f7cf81e576ab910976af7b0c269a3d36a86a
- MD5 fbad680fbd72da2ace6c2563c6affd4e
- SHA1 ae34b3efb99c6cfad452d7dfc2e67b9c0eed093d
- SHA512 71bb2b6401ee3feb77bc952087307eecd9c7bbb5a78a379d5d7dd264abcdcee2bc52291d875c9f3ea15f1a31fc892733fa309f0ddc97a90b2238748bcf993c55
- SSDEEP 6144:wFlKgzelZNQSBQGH/CSpWqTEoAXjiU4bz:HfBQGH6SfwoAX+U4
- TLSH T1375402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB5D0B4B1EB13884BAA261
- MD5 SHA1 SHA512 SSDEEP TLSH