Analysis
- max time kernel
1197s - max time network
1200s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
10/04/2024, 03:09
General
- Target 60e127ae2160fb93f9a52b4f303dc97c.exe
- Size 209KB
- Sample240410-dnphxafg71
- SHA256 b2008728fbc3e3ae4addfb77e78ba54d268bd54c1c1ffe34d293ffbba719d439
Malware Config
Extracted
-
systembc
-
yan0212.com:4039
-
yan0212.net:4039
Signatures
- SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
- Executes dropped EXE 1 IoCs
- UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Looks up external IP address via web service 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\60e127ae2160fb93f9a52b4f303dc97c.exe"C:\Users\Admin\AppData\Local\Temp\60e127ae2160fb93f9a52b4f303dc97c.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
-
C:\ProgramData\wceikmo\nwis.exeC:\ProgramData\wceikmo\nwis.exe start1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
nwis.exe
memory/3328-1-0x00000000046B0000-0x00000000047B0000-memory.dmp
memory/3328-2-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/3328-9-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/3328-14-0x00000000046B0000-0x00000000047B0000-memory.dmp
memory/4976-10-0x0000000004660000-0x0000000004760000-memory.dmp
memory/4976-11-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/4976-13-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/4976-17-0x0000000004660000-0x0000000004760000-memory.dmp