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
296s - max time network
298s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
18/04/2024, 11:08
General
- Target 2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe
- Size 209KB
- Sample240418-m8lgesce31
- 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.
- 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
- Program crash 1 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:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 4842⤵
- Program crash
-
-
C:\ProgramData\hqvb\fshtejr.exeC:\ProgramData\hqvb\fshtejr.exe start1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5028 -ip 50281⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fshtejr.exe
memory/2684-10-0x0000000004620000-0x0000000004720000-memory.dmp
memory/2684-11-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/2684-14-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/2684-17-0x0000000004620000-0x0000000004720000-memory.dmp
memory/5028-1-0x0000000004900000-0x0000000004A00000-memory.dmp
memory/5028-2-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/5028-9-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/5028-12-0x0000000004900000-0x0000000004A00000-memory.dmp
memory/5028-24-0x0000000000400000-0x00000000045F0000-memory.dmp