Analysis
- max time kernel
70s - max time network
127s - platform
windows10_x64 - resource
win10v20201028 - submitted
13/11/2020, 15:38
General
- Target Nxepdih1.exe
- Size 2.8MB
- Sample201113-52pdlc9dw6
- SHA256 d3acf85ea89d3c65b1dcb8c7abb58c7ff5ba4727a72d413fffcbdb9210509c8a
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 2 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 use of SetThreadContext 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nxepdih1.exe"C:\Users\Admin\AppData\Local\Temp\Nxepdih1.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Nxepdih1.exe"C:\Users\Admin\AppData\Local\Temp\Nxepdih1.exe"2⤵
- Checks computer location settings
- 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/1160-4-0x0000000004E90000-0x0000000004E91000-memory.dmp
memory/1160-3-0x0000000005390000-0x0000000005391000-memory.dmp
memory/1160-0-0x0000000073A80000-0x000000007416E000-memory.dmp
memory/1160-5-0x0000000004F80000-0x0000000004F81000-memory.dmp
memory/1160-6-0x0000000007120000-0x00000000071B3000-memory.dmp
memory/1160-7-0x00000000071C0000-0x00000000071D6000-memory.dmp
memory/1160-1-0x0000000000310000-0x0000000000311000-memory.dmp
memory/2688-8-0x0000000000400000-0x0000000000486000-memory.dmp
memory/2688-11-0x0000000073A80000-0x000000007416E000-memory.dmp
memory/2688-16-0x0000000006800000-0x0000000006801000-memory.dmp
memory/2688-18-0x00000000070F0000-0x00000000070F1000-memory.dmp
memory/2688-19-0x0000000007200000-0x0000000007201000-memory.dmp