Analysis
- max time kernel
65s - max time network
132s - platform
windows10_x64 - resource
win10v20201028 - submitted
04/03/2021, 18:20
General
- Target c8da1e1e_extracted.exe
- Size 1.3MB
- Sample210304-429qd7fmte
- SHA256 20f7a1696665e085deded2f5ab6d982a9e6a804d2dd665e7d1a6d7eab78e5a0d
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Chinedu22@
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- UPX packed file 1 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.
- Loads dropped DLL 1 IoCs
- 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 AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c8da1e1e_extracted.exe"C:\Users\Admin\AppData\Local\Temp\c8da1e1e_extracted.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/896-9-0x0000000005550000-0x0000000005551000-memory.dmp
memory/896-11-0x0000000006220000-0x0000000006221000-memory.dmp
memory/896-3-0x0000000000270000-0x0000000000271000-memory.dmp
memory/896-7-0x0000000002630000-0x0000000002631000-memory.dmp
memory/896-8-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
memory/896-2-0x00000000739E0000-0x00000000740CE000-memory.dmp
memory/896-10-0x0000000005DC0000-0x0000000005DC1000-memory.dmp
memory/896-5-0x0000000004DA0000-0x0000000004DA1000-memory.dmp
memory/896-12-0x0000000006490000-0x00000000064CE000-memory.dmp
memory/896-13-0x0000000006520000-0x0000000006521000-memory.dmp
memory/896-14-0x0000000006570000-0x0000000006571000-memory.dmp
memory/896-15-0x00000000068C0000-0x000000000694D000-memory.dmp
memory/896-16-0x0000000006950000-0x00000000069A9000-memory.dmp
memory/896-17-0x00000000064D0000-0x00000000064D1000-memory.dmp