Analysis
- max time kernel
150s - 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
26/08/2026, 11:49
Behavioral task
behavioral1
Sample
2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe
- Size 333KB
- Sample260826-nzdkwsvycx
- SHA256 e9acdd9836bfef7c453be5fde83aea347d9429c7634fd3eebc8865b178f32a8e
- MD5 bb756be80caabb537b8578ff08a68291
- SHA1 200dd233fe51dbf2e910d781b26e7dc3d7628246
- SHA512 91efed1692778e7ab2da44112f83e1413afc4a6eccf5ad5ea61a34c5d29e34eb8e029778e9ecb927ef692624bfe6a7405450a40c3732aba2bd3019f0e1eb4b66
- SSDEEP 6144:BFlKgzelZNQSBQGH/CSpWqTxoAXjiU4bz:WfBQGH6SfdoAX+U4
- TLSH T1127401917DA2D8B3D0414A3188A68FA197376D13AA65D203FBAD0F4B2F713D49B7B301
- 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/0x000d00000001c50c-6.dat family_cosmu behavioral2/files/0x000400000001baa8-81.dat family_cosmu behavioral2/files/0x0005000000018959-192.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) \??\G: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-25_bb756be80caabb537b8578ff08a68291_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\AppVShNotify.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX8658.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX8737.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX87B2.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX8748.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX878F.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX8825.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX88B9.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX88ED.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX8879.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ieinstal.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX877D.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX8679.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX876B.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX8804.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX87B3.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX8A4B.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX875A.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX87A1.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX85F3.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX868A.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX8857.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX88CB.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX8759.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX87D4.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX898E.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\RCX8A7C.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX887A.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ExtExport.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCX88DB.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.cab 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX8636.tmp 2026-08-25_bb756be80caabb537b8578ff08a68291_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 2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-25_bb756be80caabb537b8578ff08a68291_elex_rhadamanthys_smoke-loader.exe"1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5804
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 334KB
- SHA256 c06474fb77883e0d201e433ef62c8bf6517d4da6d2288364ffd593ad336b5276
- MD5 a9922e473ecefb1cc5ad1b6b9cb266e7
- SHA1 de05f2353580d74c8cabda9baca41ec6ab7a813c
- SHA512 b74b7bf3deaf286596f0f9be11e313b2993cf5d4f671e82436a952d5809801de5e35b0677d400b490c6949df3a2781755892aec7439c26c55f55adc74cf0c456
- SSDEEP 6144:pFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:efBQGH6SfboAX+U4
- TLSH T1897401817DA3D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7A251
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX875A.tmp
- Size 288KB
- SHA256 b9d834525032b5fab1f28a53dd08dde6f515dfbfedf1ed567e069d81f26ca0b6
- MD5 bc465bcbb62fbb62af564bd3fc7d31c2
- SHA1 fdb5e9850d86b4f97711c9a830f03b627927ce2c
- SHA512 85c44430f2d24566adff203eaf4913250caf194bd09d5609f8b470351d3eac73f91d24cf03f5830c9aa4b02096d6b9be77686d79cbd4b42c8b634178ed509972
- SSDEEP 6144:tFlKgzelZNQSBQGH/CSpWqTVoAXjiU4bz:qfBQGH6SfRoAX+U4
- TLSH T1FF5401917DA2D8B3D041493188A6CFA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX88DB.tmp
- Size 288KB
- SHA256 0f9a304ec5fd15f1ea8c5a7c8e7ed35283af52b3b7138e5970501455b87e4023
- MD5 8517252854b5c3b63c446be48ef8dff8
- SHA1 6863cf36c839e41bf9ad15f3fdd5d10e8e1d9f5f
- SHA512 91d28e9bce54d9f4fd529ef04ae072f518b5b8c8455c3c88f4157ac5cac7f8a87d80b0ee3ddbd18e9a8f5b4c4f3a7445340539abd85337cb734e85e7ad03830e
- SSDEEP 6144:ZFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz:ufBQGH6SfooAX+U4
- TLSH T18A5401917DA2D8B3C0419A3188A6CBA197376D139A65D203FBAD1F4B2F713D49B7B301
- MD5 SHA1 SHA512 SSDEEP TLSH