Analysis
- max time kernel
16s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
23/11/2020, 16:11
General
- Target 8ff48e06725ddfe2f6290e8122e1dd9a.exe
- Size 1.2MB
- Sample201123-d1p35kdr8e
- SHA256 b8ea60675bf0fd459aebe9511edd1b7757972a41bb61a57e9ba66f23d4b38a3e
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 6 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\8ff48e06725ddfe2f6290e8122e1dd9a.exe"C:\Users\Admin\AppData\Local\Temp\8ff48e06725ddfe2f6290e8122e1dd9a.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8ff48e06725ddfe2f6290e8122e1dd9a.exe"C:\Users\Admin\AppData\Local\Temp\8ff48e06725ddfe2f6290e8122e1dd9a.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/416-12-0x00000000060C0000-0x00000000060C1000-memory.dmp
memory/416-5-0x0000000000400000-0x0000000000486000-memory.dmp
memory/416-8-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/416-11-0x0000000005B20000-0x0000000005B21000-memory.dmp
memory/416-13-0x0000000006930000-0x0000000006931000-memory.dmp
memory/416-14-0x0000000007120000-0x0000000007121000-memory.dmp
memory/416-15-0x0000000007310000-0x0000000007311000-memory.dmp
memory/416-16-0x0000000007230000-0x0000000007231000-memory.dmp
memory/640-3-0x0000000005400000-0x0000000005491000-memory.dmp
memory/640-4-0x0000000005660000-0x0000000005676000-memory.dmp
memory/640-1-0x0000000000A60000-0x0000000000A61000-memory.dmp
memory/640-0-0x0000000073E00000-0x00000000744EE000-memory.dmp