Resubmissions
18/04/2024, 11:08
240418-m8wmdsbc271018/04/2024, 11:08
240418-m8na1sce4v1018/04/2024, 11:08
240418-m8mpgsbc241018/04/2024, 11:08
240418-m8lgesce311018/04/2024, 11:08
240418-m8kvwsbc231018/04/2024, 09:41
240418-lnzmwahd2910Analysis
- max time kernel
595s - max time network
597s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
18/04/2024, 11:08
General
- Target 2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe
- Size 209KB
- Sample240418-m8mpgsbc24
- SHA256 2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9
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\2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe"C:\Users\Admin\AppData\Local\Temp\2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
-
C:\ProgramData\vxbmdfq\iwisexj.exeC:\ProgramData\vxbmdfq\iwisexj.exe start1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
iwisexj.exe
memory/4584-2-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/4584-1-0x00000000047D0000-0x00000000048D0000-memory.dmp
memory/4584-9-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/4584-14-0x00000000047D0000-0x00000000048D0000-memory.dmp
memory/4716-10-0x00000000046F0000-0x00000000047F0000-memory.dmp
memory/4716-11-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/4716-13-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/4716-17-0x00000000046F0000-0x00000000047F0000-memory.dmp