Analysis
- max time kernel
186s - max time network
201s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
08/07/2022, 16:48
General
- Target 94e93ada2127d906e40067ec89da68685df86d537878d47415ab8dac1a9a0d32.exe
- Size 6.0MB
- Sample220708-vbjwbsdbd5
- SHA256 94e93ada2127d906e40067ec89da68685df86d537878d47415ab8dac1a9a0d32
Malware Config
Signatures
- Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
- Echelon log file 1 IoCs
Detects a log file produced by Echelon.
- Executes dropped EXE 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\94e93ada2127d906e40067ec89da68685df86d537878d47415ab8dac1a9a0d32.exe"C:\Users\Admin\AppData\Local\Temp\94e93ada2127d906e40067ec89da68685df86d537878d47415ab8dac1a9a0d32.exe"1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Enchelon.exe"C:\Users\Admin\AppData\Local\Temp\Enchelon.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
ChromV1.dll
ChromV2.dll
Enchelon.exe
Enchelon.exe
Ionic.Zip.dll
memory/3148-138-0x000000001B250000-0x000000001B2C8000-memory.dmp
memory/3148-139-0x00007FFADD3B0000-0x00007FFADDE71000-memory.dmp
memory/3148-141-0x000000001ADC0000-0x000000001ADD2000-memory.dmp
memory/3148-135-0x00000000001C0000-0x0000000000254000-memory.dmp
memory/3148-143-0x000000001ADB0000-0x000000001ADBC000-memory.dmp
memory/3148-144-0x00007FFADD3B0000-0x00007FFADDE71000-memory.dmp
memory/4504-136-0x0000000000400000-0x0000000000E1E000-memory.dmp
memory/4504-131-0x0000000000400000-0x0000000000E1E000-memory.dmp