Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
26/10/2026, 23:34
Behavioral task
behavioral1
Sample
2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260911-en
9 signatures
150 seconds
General
- Target 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe
- Size 1.5MB
- Sample261026-3kshtszwes
- SHA256 f70a3cc14e82dc878ef91002dab4fbb85ab40fdbdb7fff46bd826082ec0cacab
- MD5 76f8012d6cf05a3cad14075cecd05c5f
- SHA1 a3529e817c4ed64118ae8e1847b98116bd2698e1
- SHA512 f1292d225ac9f764a07622477eb10fa4055f0aaaa6aae36439a8340c08ec39322d9057965aa33a0b78d4384abecccfd1112ace4ecad92a633a05936811858fa9
- SSDEEP 6144:nFlKgzelZNQSBQGH/CSpWqTfueF/mNyBqoAXjiU4bz:4fBQGH6SfaCBqoAX+U4
- TLSH T1A265CFB17B93856BD4E7C23CB1858593ABF69B031D539263D7A0EE3DCA392814DD8C42
- 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/0x000500000001b800-4.dat family_cosmu behavioral2/files/0x000d00000001c4dc-87.dat family_cosmu behavioral2/files/0x000300000001baf7-185.dat family_cosmu behavioral2/files/0x000400000001baf9-189.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) \??\K: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_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\RCXA64E.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA778.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA755.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ieinstal.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCXA957.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA756.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA77A.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCXA9AE.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXA64F.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA79D.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCXA935.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXA63D.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCXA99A.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA779.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA744.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXA78C.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXA63C.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCXA672.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCXA924.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA803.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA873.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA874.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXA7C0.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA804.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.cab 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.exe 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCXA9AD.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXA7B0.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXA7E2.tmp 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\WallPapers.jpg 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe File created C:\windows\readme.1xt 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_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 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-25_76f8012d6cf05a3cad14075cecd05c5f_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:1192
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 331KB
- SHA256 41f6a64288ed7475dedb5d3576b86ef7814ba3b147a00bcea85a9e1ce450f557
- MD5 360b3e984373fc44ca9dfbc980037e4c
- SHA1 a98544be78ccbf194fa7c3fb7c2ffe627a571994
- SHA512 40647cf6c350f4bf58c361866f54d7265f4649f622ac20aa3b8896353366918aa9ea2a66ff1d92db18d7a2aa3c8174ebfbc9d710c978a87d86cf48ca8bf96c52
- SSDEEP 6144:0FlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:zfBQGH6SfboAX+U4
- TLSH T1497401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A351
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA874.tmp
- Size 288KB
- SHA256 030e90a9ffd6eda4db5ad68e1d35add543b40dd2f385914a0ad8df70bf435aca
- MD5 bde091e153f57debb073d29fb39fe38c
- SHA1 b92abf9433cd15352c6ea0570e0c5e06823b738c
- SHA512 ec84bff3f379dd7ca91cf3f7431ed80387ef4019cc59848cf61cedded85f49e55172ae55f421339e5aa461a37e036f27a10a719ffd454ed886283d5be78f6116
- SSDEEP 6144:sFlKgzelZNQSBQGH/CSpWqTjoAXjiU4bz:rfBQGH6Sf3oAX+U4
- TLSH T1E75401817DA2D8B3C4414A328CA78FA197376D139A65D203F7AD1F4B2F713D49B7A205
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXA885.tmp
- Size 288KB
- SHA256 7605d5ec83966e6f266768a7078de46994ac3d7b8b80c5b2ff4c8e0ef71719dd
- MD5 fca438f11e804454ca9180910acc024d
- SHA1 1943971e5a3ef0c63c8401d8b274a03f92e29bd1
- SHA512 fceeb2e820765e6ec56295b01a2b4b8e99b785cef295b7959c03e449e1b4fc89701664aa958bf854b17c72af01c79f1388c2e60b2b0a2147cc2e19cce46b0d83
- SSDEEP 6144:UFlKgzelZNQSBQGH/CSpWqTSoAXjiU4bz:TfBQGH6Sf+oAX+U4
- TLSH T1985401917EA2D8B3C0419A315CA68FA197377D139A65D203B7AD1F4B2F713D09B7A302
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCXA754.tmp
- Size 288KB
- SHA256 59275104a1bebfb0b85d1371cbbf3c919b404afe1cf04b842969a7bb0e1cc5e0
- MD5 fca36b796fb1296009893999e67804a9
- SHA1 bbca368edfc4962fd6a7676856df248e9f0ac18a
- SHA512 8a7a165ea06d41fbcc15fe32d3a31b4ed672c2b10213197f3227ef7e82483b4ac9cbc4230fa613a0dcaccb9b3bec1734f4e7f3fac63e21221ba19f064fc1a355
- SSDEEP 6144:QFlKgzelZNQSBQGH/CSpWqTYoAXjiU4bz:nfBQGH6Sf8oAX+U4
- TLSH T1CB5401917DA2D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH