Analysis
- max time kernel
66s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
24/12/2020, 08:14
General
- Target PROFORMA INVOICE.PDF......exe
- Size 567KB
- Sample201224-hf18v74zta
- SHA256 b353a8a7967d9d72d358e29044f725e3f359c5fc8aebd0dba84d13701ccfdfac
Malware Config
Extracted
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matiex
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Protocol
smtp
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Host
smtp.serviciodecorreo.es
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Port
587
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Username
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Password
Ronu6802
Signatures
- Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
- Matiex Main Payload 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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.
- 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 use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.PDF......exe"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.PDF......exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.PDF......exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2500-11-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2500-21-0x0000000006740000-0x0000000006741000-memory.dmp
memory/2500-19-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
memory/2500-14-0x0000000073840000-0x0000000073F2E000-memory.dmp
memory/3116-6-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/3116-10-0x0000000008C30000-0x0000000008CBD000-memory.dmp
memory/3116-9-0x0000000008A50000-0x0000000008A54000-memory.dmp
memory/3116-8-0x0000000008A90000-0x0000000008A91000-memory.dmp
memory/3116-7-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3116-2-0x0000000073840000-0x0000000073F2E000-memory.dmp
memory/3116-5-0x0000000005AC0000-0x0000000005AC1000-memory.dmp
memory/3116-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmp