Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/10/2026, 10:25
Behavioral task
behavioral1
Sample
2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe
- Size 336KB
- Sample261027-mge6bstsa1
- SHA256 dbae547e97eaf304fbc9518c42046178f9f81e5cfa4dffa40a3f3ef2d15c7196
- MD5 a197d17bd0d9f5e02a137cf0f07053fa
- SHA1 1b4d03f0d61999814b635ddb35b899be2982d545
- SHA512 fd23231c23269bcb011e68a58f1aed58819012f1fe6dee740cf8fe87eaae024546f497ec0a6e6ac9ed9332eada824eecae0a3dd2dac18a8e4159bcf12a03d9bc
- SSDEEP 6144:9FlKgzelZNQSBQGH/CSpWqTzw+oAXjiU4bz:afBQGH6SfY+oAX+U4
- TLSH T13D74E0503A9ECBB2D3C249318C6EFAA157767C2F9B65D133F7983B0F1E712845A66201
- 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/0x000f00000001c58b-3.dat family_cosmu behavioral2/files/0x000c00000001c5af-86.dat family_cosmu behavioral2/files/0x000700000001baf9-184.dat family_cosmu behavioral2/files/0x000d00000001c5b3-188.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: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX37CD.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX387B.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX395B.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX3A76.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX37AB.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX3746.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX37AC.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX3A87.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX3890.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX38D6.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX399D.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX37AA.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX3917.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX388F.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX3A88.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX378A.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX37CE.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX3918.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX3A20.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX38A1.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iexplore.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX38B3.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX3949.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX396B.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX3A21.tmp 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_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 2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-26_a197d17bd0d9f5e02a137cf0f07053fa_elex_rhadamanthys_smoke-loader.exe"1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4672
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 323KB
- SHA256 bd47247dd759e14597eec0fe6e65d48d300b49f2508d599304c196e5c26253cf
- MD5 79d79ab33cb8fa3f29f8d650291acaca
- SHA1 1550699e6ae5c85aa685f9627108b1e2749633b8
- SHA512 8e06df12676c13548b619306fc495a9bc4e4dbc202e1d97d09d65de7aae67220949a410563465d5b1de38a11ff39abb057decd5e91d224e16b70eddc9da3e890
- SSDEEP 6144:iFlKgzelZNQSBQGH/CSpWqTyoAXjiU4bz:lfBQGH6SfeoAX+U4
- TLSH T1EF64F1457D93C4B3E0414D31C9E68AE14B7E6C037AA6E11BFF5D0B4B1EB13884BA66B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX399D.tmp
- Size 284KB
- SHA256 49a2b9e02acebd9911109f42a29bdb05ce70a3c5a9f9d3f32dcc1203f7d19a70
- MD5 3076ef128791b091618f3a971f342beb
- SHA1 741accee8fbd93382611c238396fc3227299540c
- SHA512 5a6b84cb530c8572bbe756634e2a96b5bf202aa22f4838a2159fb7528e25ce5a5d05e171cab4d96b19da0a8e6c40ed636c27db48501a1497481367dbc3bc1abf
- SSDEEP 6144:CFlKgzelZNQSBQGH/CSpWqTfoAXjiU4bz:FfBQGH6SfzoAX+U4
- TLSH T1095402457D93D4B3D0414D3188E78BE18B7F6C137AA6E11BFB9D0B4B1EB13884BA6261
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX399E.tmp
- Size 284KB
- SHA256 30f575fac5d2412853fcdd7156817ca5e8d8b105e4c9596e1dbbfc27800660a8
- MD5 5627fcfa64a2442d8ab76c3946ad3b6c
- SHA1 d7dfbcda469c7f7aaf9032a7f3ec14bd6a3476e2
- SHA512 b496cd97266ff73ccb685610dd5c2c434df89f522c1dffff10e99b245305db110b3866b87d42d7c59a01dbeeab7e35426b6d5d9c457fb798cee13d69905ce1e8
- SSDEEP 6144:6FlKgzelZNQSBQGH/CSpWqTZoAXjiU4bz:dfBQGH6Sf9oAX+U4
- TLSH T1485402457DA3C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844B6A361
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX388D.tmp
- Size 284KB
- SHA256 f760370abbf33c5890f7a79c670ee73cc22673594a0845571eb0dde2c4b88d0b
- MD5 eaa94f595f0e4e67d06266da19c77d28
- SHA1 df9d18a63216a0ab11e3825dc61d799b0440a7b8
- SHA512 55acf82ecf52876ef1d49d82af18a91226f0257ab0397dd30ffae1a010f93b8e0b484364673a2d1b8b2bc7a1417437d40eb5c9c6fa7f94ddcd8c3dfa173cc971
- SSDEEP 6144:+FlKgzelZNQSBQGH/CSpWqTAoAXjiU4bz:5fBQGH6Sf0oAX+U4
- TLSH T10D54F1457D93C4B3D0414D31C9E68BE14B7E6C037AA6E11BFB5D0B4B1EB13884BAA6B1
- MD5 SHA1 SHA512 SSDEEP TLSH