Analysis
- max time kernel
122s - max time network
152s - platform
windows10_x64 - resource
win10 - submitted
14/10/2020, 14:12
General
- Target usd37400.exe
- Size 1008KB
- Sample201014-azrx8jecaj
- SHA256 fce44d4ea50194f48988cd604e3bd7fa580f9d55ebc1c8c1da791c0737133a9f
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.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\usd37400.exe"C:\Users\Admin\AppData\Local\Temp\usd37400.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\usd37400.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\usd37400.exe"{path}"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/712-7-0x0000000006F20000-0x0000000006F21000-memory.dmp
memory/712-9-0x00000000099A0000-0x0000000009A60000-memory.dmp
memory/712-4-0x00000000049E0000-0x00000000049E1000-memory.dmp
memory/712-5-0x00000000049B0000-0x00000000049B1000-memory.dmp
memory/712-6-0x0000000004C20000-0x0000000004C24000-memory.dmp
memory/712-0-0x0000000073D30000-0x000000007441E000-memory.dmp
memory/712-8-0x00000000071B0000-0x000000000726F000-memory.dmp
memory/712-3-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/712-1-0x0000000000090000-0x0000000000091000-memory.dmp
memory/1364-10-0x0000000000400000-0x0000000000486000-memory.dmp
memory/1364-13-0x0000000073D30000-0x000000007441E000-memory.dmp
memory/1364-18-0x0000000006A30000-0x0000000006A31000-memory.dmp
memory/1364-19-0x0000000007330000-0x0000000007331000-memory.dmp