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

Credentials

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

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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1592-7-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1592-8-0x000000000047025E-mapping.dmp	family_matiex
behavioral1/memory/1592-9-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1592-10-0x0000000000400000-0x0000000000476000-memory.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

5 checkip.dyndns.org
10 freegeoip.app
11 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

description pid process target process

PID 1204 set thread context of 1592 1204 PROFORMA INVOICE.PDF......exe PROFORMA INVOICE.PDF......exe

flow	ioc
5	checkip.dyndns.org
10	freegeoip.app
11	freegeoip.app

description	pid	process	target process
PID 1204 set thread context of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

PROFORMA INVOICE.PDF......exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	PROFORMA INVOICE.PDF......exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	PROFORMA INVOICE.PDF......exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

pid process

1592 PROFORMA INVOICE.PDF......exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PROFORMA INVOICE.PDF......exe

description pid process

Token: SeDebugPrivilege 1592 PROFORMA INVOICE.PDF......exe

pid	process
1592	PROFORMA INVOICE.PDF......exe

description	pid	process
Token: SeDebugPrivilege	1592	PROFORMA INVOICE.PDF......exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

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

description	pid	process	target process
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1204 wrote to memory of 1592	1204	PROFORMA INVOICE.PDF......exe	PROFORMA INVOICE.PDF......exe
PID 1592 wrote to memory of 476	1592	PROFORMA INVOICE.PDF......exe	netsh.exe
PID 1592 wrote to memory of 476	1592	PROFORMA INVOICE.PDF......exe	netsh.exe
PID 1592 wrote to memory of 476	1592	PROFORMA INVOICE.PDF......exe	netsh.exe
PID 1592 wrote to memory of 476	1592	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:1204

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.PDF......exe
"{path}"
2⤵
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1592

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:476

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/476-14-0x0000000000000000-mapping.dmp

Download
memory/1204-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-3-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/1204-5-0x00000000003E0000-0x00000000003E4000-memory.dmp

Filesize
16KB

Download
memory/1204-6-0x0000000005E10000-0x0000000005E9D000-memory.dmp

Filesize
564KB

Download
memory/1592-7-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1592-8-0x000000000047025E-mapping.dmp

Download
memory/1592-9-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1592-10-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1592-11-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads