Analysis
- max time kernel
147s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
16/06/2022, 03:04
General
- Target 27dcc564f8046d08fc9f5e359b020c42870a3e110349bc9f21bc8860b262a3b9.exe
- Size 611KB
- Sample220616-dkvkrabhh7
- SHA256 27dcc564f8046d08fc9f5e359b020c42870a3e110349bc9f21bc8860b262a3b9
Malware Config
Extracted
-
vidar
-
5
-
212
-
http://kolobkoproms.ug/
-
profile_id
212
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Vidar log file 1 IoCs
Detects a log file produced by Vidar.
- Vidar Stealer 2 IoCs
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses 2FA software files, possible credential harvesting 2 TTPs
- 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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\27dcc564f8046d08fc9f5e359b020c42870a3e110349bc9f21bc8860b262a3b9.exe"C:\Users\Admin\AppData\Local\Temp\27dcc564f8046d08fc9f5e359b020c42870a3e110349bc9f21bc8860b262a3b9.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\CompanySmartApp\SmartApp\uninstaller_2019-01-15_00-11.exe"C:\Program Files (x86)\CompanySmartApp\SmartApp\uninstaller_2019-01-15_00-11.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Program Files (x86)\CompanySmartApp\SmartApp\PQwick.exe"C:\Program Files (x86)\CompanySmartApp\SmartApp\PQwick.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
PQwick.exe
PQwick.exe
uninstaller_2019-01-15_00-11.exe
uninstaller_2019-01-15_00-11.exe
memory/2908-140-0x000000000062B000-0x0000000000683000-memory.dmp
memory/2908-143-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/2908-142-0x000000000062B000-0x0000000000683000-memory.dmp
memory/2908-141-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/5100-136-0x0000000000E60000-0x0000000000E68000-memory.dmp
memory/5100-139-0x0000000005810000-0x000000000581A000-memory.dmp
memory/5100-138-0x00000000058E0000-0x0000000005972000-memory.dmp
memory/5100-137-0x0000000005E90000-0x0000000006434000-memory.dmp