Analysis
- max time kernel
133s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
21/03/2022, 08:03
General
- Target b577138111c80cdcde338683038c04be.exe
- Size 1.7MB
- Sample220321-jxpsxsaecm
- SHA256 31211fd1239d9e0de50a1af9ad1e71a55be0dac1e55e06444d2537caa96bd0c6
Malware Config
Extracted
-
matiex
-
Protocol
smtp
-
Host
ebop.website
-
Port
587
-
Username
-
Password
P@ssw0rdP@ssw0rd
Signatures
- Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
- Matiex Main Payload 2 IoCs
- 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 Microsoft Outlook profiles 1 TTPs 3 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: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b577138111c80cdcde338683038c04be.exe"C:\Users\Admin\AppData\Local\Temp\b577138111c80cdcde338683038c04be.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2608-130-0x0000000000BC0000-0x0000000000C76000-memory.dmp
memory/2608-131-0x0000000005490000-0x0000000005522000-memory.dmp
memory/2608-133-0x00000000053F0000-0x0000000005482000-memory.dmp
memory/2608-132-0x0000000074B60000-0x0000000075310000-memory.dmp
memory/2608-134-0x00000000058E0000-0x00000000058E3000-memory.dmp
memory/4408-135-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4408-137-0x0000000005470000-0x0000000005A14000-memory.dmp
memory/4408-136-0x0000000074B60000-0x0000000075310000-memory.dmp
memory/4408-138-0x0000000004F60000-0x0000000004FFC000-memory.dmp
memory/4408-139-0x0000000005000000-0x0000000005066000-memory.dmp
memory/4408-140-0x0000000004EC0000-0x0000000005464000-memory.dmp
memory/4408-141-0x0000000006430000-0x00000000065F2000-memory.dmp
memory/4408-142-0x00000000062C0000-0x00000000062CA000-memory.dmp