Analysis
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max time kernel
61s -
max time network
67s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
22-12-2020 07:27
General
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Target
PROFORMA-6780-20-A.PDF.exe
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Size
680KB
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MD5
a105bdb9c9320b13f4981178da99feaf
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SHA1
9c2ac0e53ed9d22a34e2e1a52d486ecda89e02c6
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SHA256
59eec81aed7a02e2f7fbb49d082ecdce5a4dfcf9683b7ea81d6c9917ee7acbb1
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SHA512
b82c6bf1d3631231b71f4bfafb991285eee97192e6da62a14ab4f247b0e18eb2162afb39b245c32e579aa944769012aedb9d75a07ecbcd7ba24e4862c613f763
Malware Config
Extracted
Protocol: smtp- Host:
smtp.serviciodecorreo.es - Port:
587 - Username:
aocejo@creditaria.com.mx - Password:
Ronu6802
Extracted
matiex
Protocol: smtp- Host:
smtp.serviciodecorreo.es - Port:
587 - Username:
aocejo@creditaria.com.mx - Password:
Ronu6802
Signatures
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Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
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Matiex Main Payload 2 IoCs
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PROFORMA-6780-20-A.PDF.exe"C:\Users\Admin\AppData\Local\Temp\PROFORMA-6780-20-A.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PROFORMA-6780-20-A.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⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PROFORMA-6780-20-A.PDF.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/724-11-0x0000000000400000-0x0000000000476000-memory.dmpFilesize
472KB
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memory/724-21-0x0000000006770000-0x0000000006771000-memory.dmpFilesize
4KB
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memory/724-19-0x0000000004E70000-0x0000000004E71000-memory.dmpFilesize
4KB
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memory/724-14-0x0000000073A30000-0x000000007411E000-memory.dmpFilesize
6.9MB
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memory/724-12-0x000000000047025E-mapping.dmp
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memory/884-6-0x0000000004E30000-0x0000000004E31000-memory.dmpFilesize
4KB
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memory/884-10-0x0000000006A60000-0x0000000006B21000-memory.dmpFilesize
772KB
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memory/884-9-0x0000000005190000-0x0000000005194000-memory.dmpFilesize
16KB
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memory/884-8-0x0000000008700000-0x0000000008701000-memory.dmpFilesize
4KB
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memory/884-7-0x0000000004DF0000-0x0000000004DF1000-memory.dmpFilesize
4KB
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memory/884-2-0x0000000073A30000-0x000000007411E000-memory.dmpFilesize
6.9MB
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memory/884-5-0x0000000005290000-0x0000000005291000-memory.dmpFilesize
4KB
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memory/884-3-0x0000000000500000-0x0000000000501000-memory.dmpFilesize
4KB
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memory/900-20-0x0000000000000000-mapping.dmp