Analysis
- max time kernel
148s - max time network
134s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/10/2026, 17:28
Behavioral task
behavioral1
Sample
2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe
- Size 288KB
- Sample261002-v2bbwa1gpg
- SHA256 78b6b0519107e2a0f8f8080a2055d3a3b95d6f5b23fdef4469a6eedbc3d638bf
- MD5 2da4d32cf55be86e3f108b78d541604a
- SHA1 e630f7f525d7be1e1a5610a0e30daae8a3acaae1
- SHA512 a336b123f156b9ba4147cd64fe9d7efcad4f4dcad6bb4ee3d4d5c13b4d9046306b7d9ee87644b0d0a607de47b24acca2b45eec74fee2199179dc15afc35ca626
- SSDEEP 6144:KFlKgzelZNQSBQGH/CSpWqT7oAXjiU4bzV:NfBQGH6SfHoAX+U4l
- TLSH T1095401917DA2D8B3C0419A3148A6CBA197377D13AA65D203F7AD1F4B2F713D49B7A302
- 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/0x000e00000001c45a-3.dat family_cosmu behavioral2/files/0x000400000001bb27-86.dat family_cosmu behavioral2/files/0x000300000001bb29-184.dat family_cosmu behavioral2/files/0x001000000001c468-188.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) \??\D: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\K: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AE3.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ExtExport.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4BEA.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX4893.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AB0.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX4B97.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\crashreporter.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX47FE.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\ieinstal.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iexplore.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4BD9.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\RCX48C4.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\chrome.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX4A5E.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AC2.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\extcheck.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\RCX4883.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX49A2.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX4A70.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\dotnet\dotnet.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\RCX4A4D.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\dotnet\dotnet.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\RCX4BC8.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\RCX4BD8.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\ielowutil.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\RCX4BA7.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX4852.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX47FD.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX4853.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Google\Chrome\Application\RCX49E7.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.cab 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Internet Explorer\iediagcmd.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX480F.tmp 2026-10-01_2da4d32cf55be86e3f108b78d541604a_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 2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-01_2da4d32cf55be86e3f108b78d541604a_elex_rhadamanthys_smoke-loader.exe"1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:984
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 336KB
- SHA256 1300bc26597f8abed6c11405d724f48f920646644185ab6e4e8a44d5854fd4b8
- MD5 33f0b286c7e8bf3eba20549783400096
- SHA1 2a039b14427eb280391df643fdf858d0bd7f7ffa
- SHA512 89ff3bc091c64cc337e811644e2ed4f34e1e0beab8b40fcd96fa7ed421eddce94c05241060c3b5a5e5e10821a0a11baca5c9940d63b94e97e7e2914f15bae333
- SSDEEP 6144:NFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:KfBQGH6SfboAX+U4
- TLSH T1247401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A251
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AE3.tmp
- Size 288KB
- SHA256 8371a5a9ebf8052a4b1bae1d5b386f0d053253e6935191155c60046de23c1d2b
- MD5 db98d1c16d0cbf532a1596045bade2ed
- SHA1 cddeeed45dfeb4dd03af5b243d711ed7eba4e4af
- SHA512 53d8b91160d9179f22e0fe1846ed215f5d3a7cc260c17613cb249166c678314e8eca14487943e35085ed890a860c012d1134576bd9ae61d73d2c44bb09acfdfd
- SSDEEP 6144:NFlKgzelZNQSBQGH/CSpWqTjoAXjiU4bz:KfBQGH6Sf3oAX+U4
- TLSH T1EE5401817DA2D8B3C4414A3288A78FA197376D139A65D203F7AD1F4B2F713D49B7A205
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX4AF4.tmp
- Size 288KB
- SHA256 7c0f1885c91314e8d2aa36c0809c1e3dd34e8eb5617f809ca94466905b0ce34a
- MD5 fba196eb3cfcafb8b6241201e63203d5
- SHA1 ea7f31aa03239661daa82565aa5cb79cf501096d
- SHA512 08b70131f41aad5349bb676184b3bb90f33309d886cf5b2d2cc4eb64e77c61955bb2394247cb792fc3e874c8c3bef65abc86a7fe9935ea7a80c904840b84dea9
- SSDEEP 6144:1FlKgzelZNQSBQGH/CSpWqTSoAXjiU4bz:SfBQGH6Sf+oAX+U4
- TLSH T10D5401917EA2D8B3C0419A314CA68BA197377D139A65D203B7AD1F4B2F713D09B7A302
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Google\Chrome\Application\RCX49C3.tmp
- Size 288KB
- SHA256 22e2ec68d027f519ffd39caaba9cd9e0c3f25f45e85ba3aaf707279e78b8a619
- MD5 8af5632a81df06e0d616f5aa96b2651f
- SHA1 4b39a1ee02381622b34dbb2fafb6c4554a195cb0
- SHA512 45d5465151d4496f3150942353c2ffc8a54fb0c4294c062641691b439ad8705670f20c04533b87964e5b9332c516e97f73d01c132625b1386ffbb33660ecc397
- SSDEEP 6144:hFlKgzelZNQSBQGH/CSpWqTYoAXjiU4bz:2fBQGH6Sf8oAX+U4
- TLSH T1105401917DA2D8B3D041493188A68FA1973B6D13AA65D203FB9D0F4B2FB13D49B7B241
- MD5 SHA1 SHA512 SSDEEP TLSH