Analysis
- max time kernel
16s - max time network
113s - platform
windows10_x64 - resource
win10v200722 - submitted
08/10/2020, 17:51
General
- Target a6c93c102f6224260bd706f385698b20.exe
- Size 1.0MB
- Sample201008-6tzrksa7fe
- SHA256 6371e9b8a274164dfcf6252a2fc78749feee699a85ae2f6dacccac43ad8ff1a9
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 3 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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 6 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a6c93c102f6224260bd706f385698b20.exe"C:\Users\Admin\AppData\Local\Temp\a6c93c102f6224260bd706f385698b20.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\a6c93c102f6224260bd706f385698b20.exe"C:\Users\Admin\AppData\Local\Temp\a6c93c102f6224260bd706f385698b20.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/2320-6-0x0000000000892000-0x0000000000893000-memory.dmp
memory/2320-14-0x0000000006470000-0x0000000006471000-memory.dmp
memory/2320-3-0x0000000000400000-0x000000000051F000-memory.dmp
memory/2320-4-0x0000000000400000-0x000000000051F000-memory.dmp
memory/2320-5-0x0000000000AE0000-0x0000000000B66000-memory.dmp
memory/2320-10-0x00000000049C0000-0x00000000049C1000-memory.dmp
memory/2320-15-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
memory/2320-1-0x0000000000400000-0x000000000051F000-memory.dmp
memory/2320-11-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
memory/2320-12-0x0000000005B30000-0x0000000005B31000-memory.dmp
memory/2320-13-0x00000000063A0000-0x00000000063A1000-memory.dmp
memory/2320-7-0x0000000073570000-0x0000000073C5E000-memory.dmp
memory/4036-0-0x0000000000400000-0x0000000000509000-memory.dmp