Analysis
- max time kernel
148s - max time network
134s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 23:58
Behavioral task
behavioral1
Sample
2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe
- Size 1.4MB
- Sample260805-31ksxstyas
- SHA256 efbc747eda7cb197ce6cac0ab3e1718d0fdfc4220e78af42d6fd28921e1389fd
- MD5 a5cd4bb68a8176d5e638a86980d65c64
- SHA1 67da07df8fa86918d91f223fd1fa9066e6e80f77
- SHA512 68a160335ac62173b6bacca27d855144545f5558f13f9710ca114c9092b8cf5d97a22c9f85b3ea7e863ccb95628b875a1f33dca6cdb45f36c35b33f270f8ce28
- SSDEEP 24576:1fa86SfLkQ5W9GIpThCTZ0og6f5MLb+VONw/haSqnFGUMhglHZaawTXax:1faygL9fpTgTZ0og6fWLb+VOa/hunKh8
- TLSH T18565CFC2F202D0A5DC1645308C27DFF81B16BE62AD1116177BD8BF5FAEB3382592259B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Cosmu payload 4 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral2/files/0x000c00000001c5d0-7.dat family_cosmu behavioral2/files/0x000400000001bb4c-82.dat family_cosmu behavioral2/files/0x000d00000001c5cd-167.dat family_cosmu behavioral2/files/0x0007000000018983-193.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: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX47F7.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4B8E.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX492A.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX4916.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX47F6.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4B9F.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX4741.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX4771.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX47A5.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX49B3.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX493B.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4C86.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX4828.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX49D4.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX4784.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX496F.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4B5D.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4C76.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX4905.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX4906.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX493E.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX4CA8.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX47C5.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX47D6.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX4C11.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX4C31.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX4917.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4C87.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX47A4.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX49A1.tmp 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_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 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_a5cd4bb68a8176d5e638a86980d65c64_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:4252
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 330KB
- SHA256 c35faddf493f2ef0669fb9f3b83f6997b6acd07a28bc2e7f0604db425632bd32
- MD5 2693cbed4f4300b8fc47d4425275466f
- SHA1 1146174fef9dc3212f50ba5af90c20dbc5a9bd6d
- SHA512 ada0def023b952cfec8c52dbcf50e251f8d01bd2194e98c54fc194b06b061c5174763e3dd99dab369c46de4cab3fe0b750a03d79b5c565217abc326a3669b0cd
- SSDEEP 6144:CFlKgzelZNQSBQGH/CSpWqTyoAXjiU4bz:FfBQGH6SfeoAX+U4
- TLSH T18074F1457D93C4B3E0414D31C9E68AE14B7E6C037AA6E11BFF5D0B4B1EB13884BA66B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
- Size 1.5MB
- SHA256 84608c0d94b789fe08115ded5855500b18a003eabd00c30927267d03091326d5
- MD5 d0932932be6d382d99a1ef0bf2cc7047
- SHA1 bbf4ad633aa40389b179a54f07edcaaa4986500a
- SHA512 74f2ef424fbb778ffd675deef0c30c7749437b9046a364fb129a04926d8ebf2a40065bb526e8e5210d09dc5cbff2be28e6eae3623a4c0ec3b6b86ab9bd86825d
- SSDEEP 6144:aFlKgzelZNQSBQGH/CSpWqTZoAXjiU4bz:9fBQGH6Sf9oAX+U4
- TLSH T1DA6502457DA3C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844B6A361
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX4918.tmp
- Size 284KB
- SHA256 9eeaa9716213c2dc24cc26a0f74fd3346b644c435de04c1d7d88e00789cab1c9
- MD5 ab417e2351264a1586c8e58aae4af003
- SHA1 57cecc9931f69847d9798acb047eb7b733850f29
- SHA512 b192185a49aed8380dff43390a022a29bdc4fb5c42f480a5cc6dcbfe24c7a925b522aecc33b11ad7cd422dd667c84ea73b1efec1d03153c9b7a0106510554007
- SSDEEP 6144:eFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bz:ZfBQGH6SfdoAX+U4
- TLSH T11B54F1457D93C4B3D0414D31C9E68BE14B7E6C037AA6E11BFB5D0B4B1EB13884BAA6B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX4C11.tmp
- Size 284KB
- SHA256 10c3c1c31553644457b33e211914e17684832e2f6fb9322bd95c77dcb2ab7887
- MD5 1712cb3cedfe2199a351963db88f47a5
- SHA1 321f6dc2ae6f47e69b7e4a32c721a2d986b40b46
- SHA512 df4a987b45dbea2e152a9e71cefef9a94bd40da28201b8c25a20afc38dd93f3115c03d58d656e0521c47e34df5d1f86b74f256e2595f5eb043763385018ff483
- SSDEEP 6144:iFlKgzelZNQSBQGH/CSpWqTEoAXjiU4bz:lfBQGH6SfwoAX+U4
- TLSH T16E5402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB5D0B4B1EB13844BAA261
- MD5 SHA1 SHA512 SSDEEP TLSH