Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
18/05/2026, 16:06
General
- Target svhost.dll
- Size 550KB
- Sample260518-tkknjsfy8s
- SHA256 d5160d9b5b7e897526cac53f2db309a68babd411dd2a41ea168041967f56821c
Score
10/10
Malware Config
Extracted
Family
-
systembc
C2
-
45.63.61.116:443
Signatures
- Family: SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
- Program crash 1 IoCs
- 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.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\svhost.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\svhost.dll,#12⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 5603⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4380 -ip 43801⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4380-0-0x0000000002E30000-0x0000000002E4A000-memory.dmp
memory/4380-1-0x0000000002E60000-0x0000000002E67000-memory.dmp
memory/4380-3-0x0000000002E30000-0x0000000002E4A000-memory.dmp
memory/4380-2-0x0000000000400000-0x000000000048F000-memory.dmp