Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
09/11/2026, 03:39
Behavioral task
behavioral1
Sample
2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe
Resource
win10v2004-20260911-en
9 signatures
150 seconds
General
- Target 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe
- Size 1.5MB
- Sample261109-d73vmscd27
- SHA256 342355bfef8309be415fb7be469f3194bd9f8f0231dc4f1eadecec3fe1b9ce19
- MD5 53b556435a5e4da38923fbcff892bb0e
- SHA1 ec10d556352f7d865dc39163a3d760379d99c1db
- SHA512 3c2ee88518ec3005b44c9779fca8f5edb572dbcc88197c5a3bd6cf4342a0c60d983f0531c642aa6d2757e9e92908b9632373d811539784578038e1a88c1e3803
- SSDEEP 6144:XFlKgzelZNQSBQGH/CSpWqTfueF/mNyBqoAXjiU4bz:IfBQGH6SfaCBqoAX+U4
- TLSH T19565CFB17B93856BD4E7C23CB1858593ABF69B031D539263D7A0EE3DCA392814DD8C42
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Cosmu payload 2 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral1/files/0x0003000000022bdc-10.dat family_cosmu behavioral1/files/0x00090000000247ea-27.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: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\O: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\G: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\I: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\L: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\M: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\N: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\E: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\H: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened (read-only) \??\J: 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2091445952-3649787497-104050984-1000\Control Panel\Desktop\Wallpaper = "C:\\windows\\WallPapers.jpg" 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe - Drops file in Program Files directory 21 IoCs
description ioc Process File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX44E5.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\readme.1xt 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44B1.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44C2.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44C4.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7z.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\7zFM.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44A0.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\7-Zip\7zFM.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44C3.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\7-Zip\RCX44D4.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\RCX44E6.tmp 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\windows\readme.1xt 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe File created C:\windows\WallPapers.jpg 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe - Program crash 1 IoCs
pid pid_target Process procid_target 5396 692 WerFault.exe 85 - 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 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2091445952-3649787497-104050984-1000\Software\Microsoft\Internet Explorer\Desktop\General 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe Set value (str) \REGISTRY\USER\S-1-5-21-2091445952-3649787497-104050984-1000\SOFTWARE\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\windows\\WallPapers.jpg" 2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-11-08_53b556435a5e4da38923fbcff892bb0e_elex_rhadamanthys_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-11-08_53b556435a5e4da38923fbcff892bb0e_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:692 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 692 -s 8082⤵
- Program crash
PID:5396
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 692 -ip 6921⤵PID:2652
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.cab
- Size 549KB
- SHA256 707f415d7d581edd9bce99a0429ad4629d3be0316c329e8b9ebd576f7ab50b71
- MD5 0b24892597dcb0257cdb78b5ed165218
- SHA1 5fe5d446406ff1e34d2fe3ee347769941636e323
- SHA512 24ea9e0f10a283e67850070976c81ae4b2d4d9bb92c6eb41b2557ad3ae02990287531a619cf57cd257011c6770d4c25dd19c3c0e46447eb4d0984d50d869e56f
- SSDEEP 6144:vXREiNYVLKZn56Vq2UjCpd0v5prE6v0GSxWUPZl1JP+1Lix7NGZIVuXQ82g4zrr8:vXZNYVLeyUji0h90ZD0wxpGZIVuKrHs
- TLSH T1C1C40916F6748335D073C0B9C5D2A68EE972308657308ACB4286D77C7E67BE6863A731
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7z.exe
- Size 1.5MB
- SHA256 8f06b76ee44c7a938c69ff92d479d2945380030c0b3f0e6507d23ecf00fe180c
- MD5 e013d6095d4b1b1113e99e3ca491216e
- SHA1 e2af71335cfd30ed6bc056be55a52b427298eec6
- SHA512 b4f91fb07f165257535cc45c010e6800d6885fe3e03729c2bdec57711acc5102191b1c8705ad28e35af2ae603d775e8204178865e76c073a1d68296ec1867a35
- SSDEEP 6144:XFlKgzelZNQSBQGH/CSpWqTfueF/mNyBqoAXjiU4bzX:IfBQGH6SfaCBqoAX+U4n
- TLSH T1FF65CFB17B93856BD4E7C23CB1858593ABF69B031D539263D7A0EE3DCA392814DD8C42
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7zFM.cab
- Size 963KB
- SHA256 028cf2158df45889e9a565c9ce3c6648fb05c286b97f39c33317163e35d6f6be
- MD5 004d7851f74f86704152ecaaa147f0ce
- SHA1 45a9765c26eb0b1372cb711120d90b5f111123b3
- SHA512 16ebda34803977a324f5592f947b32f5bb2362dd520dc2e97088d12729024498ddfa6800694d37f2e6e5c6fc8d4c6f603414f0c033df9288efc66a2c39b5ec29
- SSDEEP 12288:O8vaa81soeyezSC6v/ciLKK3kg5aqghpSy1TIPxTmqCLwKzu/:7a7/ezSC6vUyD/aqgrvWx6q8wyu
- TLSH T1F225E815F5788323D0B2D0BAC5D6BA9AFE7230465B3089CB0246D76C3E277E68536739
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\RCX44C2.tmp
- Size 288KB
- SHA256 66722fe36e811b7ec5d157871a30214da790c3bb514ea307c8e1b7ec8d36d739
- MD5 06998f76744695135552232c30232bd5
- SHA1 8c59e06d47b069ac23b3a0b86b6abb7fa970d25d
- SHA512 52323beecd5c4eb54d1ad6275933873f968bccfedc547850e40d648e5a81a80d1ef1897c44eee5166ace46a662f9c706af4ed4313cfb759905d33ef44fb400ed
- SSDEEP 6144:GFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:hfBQGH6SfboAX+U4
- TLSH T1CF5401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A251
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.cab
- Size 2.1MB
- SHA256 7e0976036431640ae1d9f1c0b52bcea5dd37ef86cd3f5304dc8a96459d9483cd
- MD5 b8d69fa2755c3ab1f12f8866a8e2a4f7
- SHA1 8e3cdfb20e158c2906323ba0094a18c7dd2aaf2d
- SHA512 5acac46068b331216978500f67a7fa5257bc5b05133fab6d88280b670ae4885ef2d5d1f531169b66bf1952e082f56b1ad2bc3901479b740f96c53ea405adda18
- SSDEEP 24576:GCbRquA/m2z+L5WqJdrHCYRFiV+XenmE3Pnzc344:GCbRquA/m2yL5zbfFiV+XenmE3/z
- TLSH T156A55B0976B8C1E4D1F6C77886A2C647F37178154B31A7EF4266461E2E33AE58E3E321
- MD5 SHA1 SHA512 SSDEEP TLSH