Analysis
- max time kernel
149s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
02/05/2026, 14:05
General
- Target 2026-05-02_6bef1c0c4185b4038e222519ec1eea74_elex_rhadamanthys_smoke-loader_stop_zeus.exe
- Size 512KB
- Sample260502-rd2blsh19x
- SHA256 f743b3a64711d89478487a7612fbce916305394c09a1ee7e18b261b53aa774a4
Malware Config
Signatures
- Family: Gepys
Gepys is a Windows trojan.
- Detects Gepys trojan 8 IoCs
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Drops file in Program Files directory 4 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-02_6bef1c0c4185b4038e222519ec1eea74_elex_rhadamanthys_smoke-loader_stop_zeus.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-02_6bef1c0c4185b4038e222519ec1eea74_elex_rhadamanthys_smoke-loader_stop_zeus.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
-
C:\PROGRA~3\Mozilla\gnrvbyg.exeC:\PROGRA~3\Mozilla\gnrvbyg.exe -neumybf1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
-
C:\PROGRA~3\Mozilla\gnrvbyg.exeC:\PROGRA~3\Mozilla\gnrvbyg.exe1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
-
C:\PROGRA~3\Mozilla\gnrvbyg.exeC:\PROGRA~3\Mozilla\gnrvbyg.exe -neumybf1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
fydxyln.dll
gnrvbyg.exe
gnrvbyg.exe
memory/2384-40-0x0000000000840000-0x0000000000952000-memory.dmp
memory/2384-39-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2384-33-0x0000000000F40000-0x0000000000F9B000-memory.dmp
memory/2384-31-0x0000000000F10000-0x0000000000F2F000-memory.dmp
memory/4060-10-0x00000000009B0000-0x0000000000AC2000-memory.dmp
memory/4060-0-0x0000000000400000-0x0000000000427000-memory.dmp
memory/4060-9-0x0000000000400000-0x0000000000427000-memory.dmp
memory/4060-1-0x0000000002270000-0x00000000022CB000-memory.dmp
memory/4192-24-0x00000000008D0000-0x00000000009E2000-memory.dmp
memory/4192-23-0x0000000000400000-0x0000000000427000-memory.dmp
memory/4192-12-0x0000000000F50000-0x0000000000FAB000-memory.dmp
memory/4488-26-0x0000000000400000-0x0000000000427000-memory.dmp
memory/4488-27-0x0000000000880000-0x0000000000992000-memory.dmp
memory/4488-17-0x00000000021A0000-0x00000000021FB000-memory.dmp