Analysis
- max time kernel
123s - max time network
126s - platform
windows7_x64 - resource
win7v20201028 - submitted
24/11/2020, 10:06
General
- Target Bc.exe
- Size 424KB
- Sample201124-bampt18gls
- SHA256 b25aeadf9b7a24092bf9cc73be9f45ccfa08ac94c5a883aff2d8d8a5df68ffd9
Score
10/10
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bc.exe"C:\Users\Admin\AppData\Local\Temp\Bc.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1772-0-0x0000000074710000-0x0000000074DFE000-memory.dmp
memory/1772-1-0x0000000000BF0000-0x0000000000BF1000-memory.dmp
memory/1772-3-0x00000000049C0000-0x0000000004A22000-memory.dmp
memory/1772-4-0x0000000005AE0000-0x0000000005B66000-memory.dmp