matiex | 0b2da1d6b98306bf204f7c061976afe3d460af1da864c104bb1b6f9d0997fddb

General

Target

R010982210.exe
Size

534KB
MD5

76954c7b00750983a2dc26ecd1dce1b7
SHA1

9b783fe07d49991ec118d072621be2c42f9d8796
SHA256

c4b558efd2baee3e3b2e39a7b88da203d870857a8331b403b003643ab066b930
SHA512

fb04fad2d8466ee5c7e3e41588ca6915f05aba759c20aa802dc796ddba46b13db729abf7200a61bc5cca0ec2e97dde695f07653512d8fac797f2ee481a273266

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.metauxsud.com
Port:
587
Username:
euro@metauxsud.com
Password:
hushpuppy2020
Email To:
dollar@metauxsud.com

Signatures

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

Matiex Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4076-132-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

27 freegeoip.app
24 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

R010982210.exe

description pid process target process

PID 4896 set thread context of 4076 4896 R010982210.exe MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 4076 MSBuild.exe

flow	ioc
27	freegeoip.app
24	checkip.dyndns.org

description	pid	process	target process
PID 4896 set thread context of 4076	4896	R010982210.exe	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4076	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

R010982210.exe

description	pid	process	target process
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe
PID 4896 wrote to memory of 4076	4896	R010982210.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\R010982210.exe
"C:\Users\Admin\AppData\Local\Temp\R010982210.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4896

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Users\Admin\AppData\Local\Temp\R010982210.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4076

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/4076-131-0x0000000000000000-mapping.dmp

Download
memory/4076-132-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4076-133-0x0000000004E60000-0x0000000004EFC000-memory.dmp

Filesize
624KB

Download
memory/4076-134-0x0000000005560000-0x0000000005B04000-memory.dmp

Filesize
5.6MB

Download
memory/4076-135-0x0000000004FB0000-0x0000000005016000-memory.dmp

Filesize
408KB

Download
memory/4076-136-0x00000000063B0000-0x0000000006572000-memory.dmp

Filesize
1.8MB

Download
memory/4076-137-0x0000000006280000-0x0000000006312000-memory.dmp

Filesize
584KB

Download
memory/4076-138-0x0000000006240000-0x000000000624A000-memory.dmp

Filesize
40KB

Download
memory/4896-130-0x0000000000060000-0x00000000000E8000-memory.dmp

Filesize
544KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads