Resubmissions
10/04/2024, 03:05
240410-dld96afg4v1010/04/2024, 03:04
240410-dk1f1acd861010/04/2024, 03:04
240410-dkzvgacd851010/04/2024, 03:04
240410-dky8yafg3z1010/04/2024, 03:04
240410-dkyx6scd841001/04/2024, 07:13
240401-h17mgagf881031/03/2024, 20:35
240331-zc89tsbe8y10Analysis
- max time kernel
1197s - max time network
1210s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
10/04/2024, 03:04
General
- Target 5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe
- Size 209KB
- Sample240410-dkzvgacd85
- SHA256 dfe0c8f95bf96e2be4666d73ef9cd166e89eef631e975aa2e384d9f1af901d45
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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
-
C:\ProgramData\ntex\bjaojit.exeC:\ProgramData\ntex\bjaojit.exe start1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
bjaojit.exe
memory/1640-10-0x00000000047F0000-0x00000000048F0000-memory.dmp
memory/1640-11-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/1640-13-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/1640-17-0x00000000047F0000-0x00000000048F0000-memory.dmp
memory/2440-1-0x0000000004600000-0x0000000004700000-memory.dmp
memory/2440-2-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/2440-9-0x0000000000400000-0x00000000045F0000-memory.dmp
memory/2440-14-0x0000000004600000-0x0000000004700000-memory.dmp