Analysis
- max time kernel
142s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
20/04/2022, 02:31
General
- Target Payment.exe
- Size 740KB
- Sample220420-czzbtahea6
- SHA256 5b5a1a7507d3758b05be55fb8218911b700fb933750fb310b454680e580fc58a
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 1 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 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\Payment.exe"C:\Users\Admin\AppData\Local\Temp\Payment.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
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 behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/848-134-0x0000000000400000-0x0000000000472000-memory.dmp
memory/848-135-0x00000000054F0000-0x0000000005A94000-memory.dmp
memory/848-136-0x0000000004F40000-0x0000000004FDC000-memory.dmp
memory/848-137-0x0000000004FE0000-0x0000000005046000-memory.dmp
memory/848-138-0x0000000006990000-0x000000000699A000-memory.dmp
memory/848-139-0x0000000006BE0000-0x0000000006DA2000-memory.dmp
memory/1052-130-0x00000000009E0000-0x0000000000AA0000-memory.dmp
memory/1052-131-0x0000000005400000-0x0000000005492000-memory.dmp
memory/1052-133-0x0000000005620000-0x0000000005623000-memory.dmp