matiex | b353a8a7967d9d72d358e29044f725e3f359c5fc8aebd0dba84d13701ccfdfac

General

Target

PROFORMA INVOICE.PDF......exe
Size

567KB
MD5

a9ceffb0c01ef7b2d56aead65b433529
SHA1

d3577bc9782c8be92cf86a4ba1b7a9becf3ec1a9
SHA256

b353a8a7967d9d72d358e29044f725e3f359c5fc8aebd0dba84d13701ccfdfac
SHA512

3dea0df1d7edf80f4d8edeb0755bfc488df7a5890e492a2adca99b145812fa3f3634696467bb7788b1ae61749f5045a4a4d19284c2120aa3bd9bffaa8ae342d3

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.serviciodecorreo.es
Port:
587
Username:
aocejo@creditaria.com.mx
Password:
Ronu6802

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2500-11-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral2/memory/2500-12-0x000000000047025E-mapping.dmp	family_matiex

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

13 checkip.dyndns.org
16 freegeoip.app
17 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

description pid process target process

PID 3116 set thread context of 2500 3116 PROFORMA INVOICE.PDF......exe PROFORMA INVOICE.PDF......exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

pid process

2500 PROFORMA INVOICE.PDF......exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

description pid process

Token: SeDebugPrivilege 2500 PROFORMA INVOICE.PDF......exe

flow	ioc
13	checkip.dyndns.org
16	freegeoip.app
17	freegeoip.app

description	pid	process	target process
PID 3116 set thread context of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe

pid	process
2500	PROFORMA INVOICE.PDF......exe

description	pid	process
Token: SeDebugPrivilege	2500	PROFORMA INVOICE.PDF......exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PROFORMA INVOICE.PDF......exePROFORMA INVOICE.PDF......exe

description	pid	process	target process
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 3116 wrote to memory of 2500	3116	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 2500 wrote to memory of 1540	2500	PROFORMA INVOICE.PDF......exe	netsh.exe
PID 2500 wrote to memory of 1540	2500	PROFORMA INVOICE.PDF......exe	netsh.exe
PID 2500 wrote to memory of 1540	2500	PROFORMA INVOICE.PDF......exe	netsh.exe

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
PID:3116

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.PDF......exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1540

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PROFORMA INVOICE.PDF......exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/1540-20-0x0000000000000000-mapping.dmp

Download
memory/2500-11-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2500-21-0x0000000006740000-0x0000000006741000-memory.dmp

Filesize
4KB

Download
memory/2500-19-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

Filesize
4KB

Download
memory/2500-14-0x0000000073840000-0x0000000073F2E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-12-0x000000000047025E-mapping.dmp

Download
memory/3116-6-0x00000000054B0000-0x00000000054B1000-memory.dmp

Filesize
4KB

Download
memory/3116-10-0x0000000008C30000-0x0000000008CBD000-memory.dmp

Filesize
564KB

Download
memory/3116-9-0x0000000008A50000-0x0000000008A54000-memory.dmp

Filesize
16KB

Download
memory/3116-8-0x0000000008A90000-0x0000000008A91000-memory.dmp

Filesize
4KB

Download
memory/3116-7-0x0000000005470000-0x0000000005471000-memory.dmp

Filesize
4KB

Download
memory/3116-2-0x0000000073840000-0x0000000073F2E000-memory.dmp

Filesize
6.9MB

Download
memory/3116-5-0x0000000005AC0000-0x0000000005AC1000-memory.dmp

Filesize
4KB

Download
memory/3116-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download

Analysis

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