Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
21/08/2026, 04:58
General
- Target 2026-08-21_c9869b418847fd0dece6646041afc410_amadey_elex_rhadamanthys_smoke-loader_stealc_stop.exe
- Size 93KB
- Sample260821-fl3nvstckh
- SHA256 3f7e392f2862a2fa6bc59ff6f588818ea59805b5edde8136aa2af88e7439ab32
Malware Config
Extracted
-
systembc
-
advertrex20.xyz:4044
-
gentexman37.xyz:4044
Signatures
- Family: SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
- Executes dropped EXE 1 IoCs
- Suricata alert: Tor Node X.509 Certificate Pattern Detected - Inbound 18 IoCs
Network activity triggered a Suricata alert
- Looks up external IP address via web service 1 TTPs 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.
- Drops file in Windows directory 2 IoCs
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_c9869b418847fd0dece6646041afc410_amadey_elex_rhadamanthys_smoke-loader_stealc_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_c9869b418847fd0dece6646041afc410_amadey_elex_rhadamanthys_smoke-loader_stealc_stop.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 9482⤵
- Program crash
-
-
C:\ProgramData\sjeeato\ptwjm.exeC:\ProgramData\sjeeato\ptwjm.exe start1⤵
- Executes dropped EXE
- Suricata alert: Tor Node X.509 Certificate Pattern Detected - Inbound
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1984 -ip 19841⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
ptwjm.exe
memory/1984-2-0x0000000003100000-0x0000000003109000-memory.dmp
memory/1984-1-0x0000000003130000-0x0000000003230000-memory.dmp
memory/1984-3-0x0000000003130000-0x0000000003230000-memory.dmp
memory/1984-4-0x0000000000400000-0x0000000002FA3000-memory.dmp
memory/1984-6-0x0000000003100000-0x0000000003109000-memory.dmp
memory/4624-12-0x0000000003180000-0x0000000003280000-memory.dmp
memory/4624-14-0x0000000003180000-0x0000000003280000-memory.dmp
memory/4624-15-0x0000000000400000-0x0000000002FA3000-memory.dmp