Analysis
- max time kernel
148s - max time network
132s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/08/2026, 00:21
Behavioral task
behavioral1
Sample
2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe
- Size 284KB
- Sample260807-anglhsdb44
- SHA256 8c94cda97749931c2c0ebc8f90eeb39f198c04d7a93366b06f466581b1add174
- MD5 b2cfe4de71a588aa5c218580bc034eda
- SHA1 895ad13f0252ef68f98243c5001d7856ec0a9333
- SHA512 a5839ada5ffb71730ff29e1492fd8d55f0c7d60e02c3fb0f24aba0f180904f1375f3bd9d4e3b76dc2a1dbe35f5f4e0c55443c0f1079b4f7f112cfb16872352de
- SSDEEP 6144:AFlKgzelZNQSBQGH/CSpWqTkoAXjiU4bzF:3fBQGH6SfIoAX+U41
- TLSH T15B5402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
- 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/0x000d00000001c508-7.dat family_cosmu behavioral2/files/0x000e00000001c511-82.dat family_cosmu behavioral2/files/0x0006000000018983-193.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) \??\N: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\D: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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" 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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\RCX585D.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iexplore.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX586F.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5AA6.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX5B5E.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX586E.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5A63.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX5AF8.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5A74.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX5BD6.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX5BE9.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX5AF9.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5AA5.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX59B2.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX59E2.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX5BB3.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX5880.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX584C.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX5B0A.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX5890.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ielowutil.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX5BA2.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX5AF7.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX5828.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\jabswitch.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX58B1.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX5AD6.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX5BC4.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX583A.tmp 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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" 2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-06_b2cfe4de71a588aa5c218580bc034eda_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-06_b2cfe4de71a588aa5c218580bc034eda_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:928
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 322KB
- SHA256 61bedd7830a1e1f2401fd8ea9d2668ea4100c48f1ec298bd4b77b782a07b0198
- MD5 c164b4600944ffc7937f58186c5032bf
- SHA1 4353a3d12873ed61633f4e2c011c978c271fbb80
- SHA512 305c1fd0bd4a52ebc293891a03e821934c7519b5061cce3c6bc185bb652fe88ce7a8561ab9a31081b892fcffc8718a180367bf089c1fc54a9fe80a37edc39e74
- SSDEEP 6144:nFlKgzelZNQSBQGH/CSpWqTyoAXjiU4bz:4fBQGH6SfeoAX+U4
- TLSH T1CC64F1457D93C4B3E0414D31C9E68AE14B7E6C037AA6E11BFF5D0B4B1EB13884BA66B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX59B2.tmp
- Size 284KB
- SHA256 cc351e2b412da422c56791ac238dbf603bd378ae063438b2a302a87446da6e19
- MD5 1e6130aaae00e8b3d43070f1fe355197
- SHA1 816b6494f10c4d289a08ba31af45b1b414a4cb3f
- SHA512 02b5962688c1339f41e835a6f3467f18511bcc243e7ff5283fe2e38471e8e32297aab5019de77361989b37f0f994530fb9c5b985f2749f3abcdcc9cb7f12b3b5
- SSDEEP 6144:DFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bz:MfBQGH6SfdoAX+U4
- TLSH T1E654F1457D93C4B3D0414D31C9E68BE14B7E6C037AA6E11BFB5D0B4B1EB13884BAA6B1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Java\jdk-1.8\bin\RCX5B92.tmp
- Size 284KB
- SHA256 a7efad2dbcabdcc34842d9109d4e63371b4fb90a569a46f5b94a09ac175c539b
- MD5 057e015c91eab7e6f5da5fa0d3d6fc06
- SHA1 b9cc6f62be8bf04945b2cf36e3d48a69cc1d1253
- SHA512 021b27857dee0fced82fac2d5f823b814d6c0ff42f46afe748c29d0c98fcdd1ac42e78e03a6cd29407c01d9805d63f3ee574750acf06903d4976cffdb1b12ca6
- SSDEEP 6144:3FlKgzelZNQSBQGH/CSpWqTEoAXjiU4bz:ofBQGH6SfwoAX+U4
- TLSH T14D5402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB5D0B4B1EB13844BAA361
- MD5 SHA1 SHA512 SSDEEP TLSH