Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260630-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/07/2026, 02:52
Behavioral task
behavioral1
Sample
2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe
- Size 284KB
- Sample260701-dc7kcaey8z
- SHA256 2f12a876cedc27e7088f85762797d3697f3af085a98468346e7ae783a08c9f3c
- MD5 c679300b2223e023ad273189345730e8
- SHA1 bef74398bf3cb1186997b9d5ef49a8721951c945
- SHA512 022a2493bd8eac84f165c6425737a69a7a584a3d05dd8bfcaa5430793078fb077c5ebd34c825b213b3ef3ae03b8ec0e632b821498599badff1ba0bf64a55bbf6
- SSDEEP 6144:/FlKgzelZNQSBQGH/CSpWqTkoAXjiU4bzF:wfBQGH6SfIoAX+U41
- TLSH T1AD5402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
- 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/0x000e00000001c5c2-7.dat family_cosmu behavioral2/files/0x000400000001bb69-82.dat family_cosmu behavioral2/files/0x0005000000018975-193.dat family_cosmu behavioral2/files/0x000300000001b94d-230.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: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2132828192-1552876075-2324613956-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXF23B.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXF3B1.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXF461.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXF460.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCXF53A.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXF24B.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXF2A0.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCXF2D3.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ieinstal.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXF44E.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXF28F.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCXF2B1.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCXF56E.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\RCXF4E7.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCXF518.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXF3B4.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXF43C.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCXF24D.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXF3F9.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCXF2C2.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXF44F.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\RCXF54B.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCXF3B2.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCXF55D.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCXF450.tmp 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-06-30_c679300b2223e023ad273189345730e8_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 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2132828192-1552876075-2324613956-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-2132828192-1552876075-2324613956-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-30_c679300b2223e023ad273189345730e8_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-30_c679300b2223e023ad273189345730e8_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:548
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 332KB
- SHA256 3170dc401f0b0279450b4299c68ff21b8822ad22d9a884f48d3d035d2f4f90fb
- MD5 f3ec39a8bbe25f2419b188a950eec23a
- SHA1 bb39a3d0c15745cd276a9522c2b899495c64e9cd
- SHA512 4ff2a4b584cc21c185445bcbe7278321e8209e5332e65759d5a84b4a0d21cfad7242d90dada275160dfcfcbe8f0edfe8fd307efece060a14f0ff997d2f27f2b7
- SSDEEP 6144:OFlKgzelZNQSBQGH/CSpWqTyoAXjiU4bz:pfBQGH6SfeoAX+U4
- TLSH T14A74F1457D93C4B3E0414D31C9E68AE14B7E6C037AA6E11BFF5D0B4B1EB13884BA66B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCXF3C5.tmp
- Size 284KB
- SHA256 83826423d6d5d86ecb365521a349157ccb580dcc786772144fb68c4ff35e4ee5
- MD5 aa1ce42adb62497923f90a1baac03b65
- SHA1 0184ea253df4d86416d90b735da1d4b7fa1c79f5
- SHA512 1c7987aa431176e4010588b57e96a2e52e604a317fb5676ccf31247ab1d2c39cdfdd5f9be85a8514c88dd2f4d68c5f38e2221b9d23c6756517c6fc276004614c
- SSDEEP 6144:qFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bz:tfBQGH6SfdoAX+U4
- TLSH T12854F1457D93C4B3D0414D31C9E68BE14B7E6C037AA6E11BFB5D0B4B1EB13884BAA6B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCXF4F8.tmp
- Size 284KB
- SHA256 7257bf9e985a2f478d040700efac6a7f11c4fba16247f4b4a9161b32dcb763e2
- MD5 b779f190d1bca11b35025bbf28923e99
- SHA1 574a7b0be21a3582b2b643765a8d7829975e9da1
- SHA512 d0e39c6be585b69fdf00c0d30f6726990afd89a552dbcc1c4b342e7306abe141bca233a8a4279ffdb646251ba8d6ac895cd9f912c1686a866f224537837edea0
- SSDEEP 6144:uFlKgzelZNQSBQGH/CSpWqTEoAXjiU4bz:JfBQGH6SfwoAX+U4
- TLSH T1D05402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB5D0B4B1EB13844BAA261
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Mozilla Firefox\crashreporter.exe
- Size 1.5MB
- SHA256 8b28d6114c5a68d02fff81fc1668dcb7836c31f5537ebea83d04e93c5443e85b
- MD5 cdb354d2483ecbac5e78731d257c96be
- SHA1 12a5345b77767c99b796e73ff4779415fe0e9341
- SHA512 367bebb97c16a89ce6ddff1562abd81bedcb81ca26320e03f27c3943b059e95d07ca62a9488468671783c4c70694b6eb1bec1c39e8757a09c8146ec81b21dc17
- SSDEEP 6144:eFlKgzelZNQSBQGH/CSpWqTtoAXjiU4bz:ZfBQGH6SfpoAX+U4
- TLSH T1A27502457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB9D0B4B1EB13C84BA6261
- MD5 SHA1 SHA512 SSDEEP TLSH