Analysis
- max time kernel
124s - max time network
153s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 20:48
General
- Target FACTURA-9vUVHazo9RuSJpH.exe
- Size 1.1MB
- Sample220128-zlgaeadef8
- SHA256 c744fe5aa2ab646ac1a0583348316b13bf7ad12435edeb658aa5e0f09e494b89
Malware Config
Extracted
-
Protocol
smtp
-
Host
serv3.devmexico.com
-
Port
587
-
Username
-
Password
3}l^pI#_4K_!
Extracted
-
matiex
-
Protocol
smtp
-
Host
serv3.devmexico.com
-
Port
587
-
Username
-
Password
3}l^pI#_4K_!
-
Email to
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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"2⤵
- Accesses Microsoft Outlook profiles
- 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
memory/1188-121-0x0000000005000000-0x00000000054FE000-memory.dmp
memory/1188-120-0x00000000050E0000-0x0000000005172000-memory.dmp
memory/1188-118-0x0000000000790000-0x00000000008AA000-memory.dmp
memory/1188-122-0x0000000005190000-0x000000000519A000-memory.dmp
memory/1188-123-0x0000000005340000-0x000000000534C000-memory.dmp
memory/1188-124-0x0000000007AF0000-0x0000000007B8C000-memory.dmp
memory/1188-125-0x0000000007D80000-0x0000000007E38000-memory.dmp
memory/1188-119-0x0000000005500000-0x00000000059FE000-memory.dmp
memory/1420-126-0x0000000000400000-0x0000000000472000-memory.dmp
memory/1420-128-0x0000000005440000-0x00000000054A6000-memory.dmp
memory/1420-129-0x0000000005440000-0x000000000593E000-memory.dmp
memory/1420-130-0x0000000006C10000-0x0000000006DD2000-memory.dmp