Malware Analysis Report

2024-10-18 23:03

Sample ID 220501-3djmcaahen
Target 6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398
SHA256 6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398
Tags
matiex collection keylogger spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398

Threat Level: Known bad

The file 6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398 was found to be: Known bad.

Malicious Activity Summary

matiex collection keylogger spyware stealer

Matiex Main Payload

Matiex

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

outlook_office_path

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-01 23:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-01 23:23

Reported

2022-05-01 23:26

Platform

win7-20220414-en

Max time kernel

42s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"

Signatures

Matiex

stealer keylogger matiex

Matiex Main Payload

Description Indicator Process Target
N/A N/A N/A N/A

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 748 set thread context of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 748 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe

"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp

Files

memory/748-54-0x0000000000CD0000-0x0000000000D90000-memory.dmp

memory/748-55-0x0000000005000000-0x000000000507A000-memory.dmp

memory/748-56-0x00000000763E1000-0x00000000763E3000-memory.dmp

memory/748-57-0x0000000000580000-0x0000000000583000-memory.dmp

memory/1636-58-0x000000000046CE6E-mapping.dmp

memory/1636-60-0x0000000000400000-0x0000000000472000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-01 23:23

Reported

2022-05-01 23:26

Platform

win10v2004-20220414-en

Max time kernel

142s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"

Signatures

Matiex

stealer keylogger matiex

Matiex Main Payload

Description Indicator Process Target
N/A N/A N/A N/A

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 908 set thread context of 3288 N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe

"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
IE 20.190.159.71:443 tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 67.24.169.254:80 tcp
US 93.184.220.29:80 tcp
US 67.24.169.254:80 tcp
US 93.184.220.29:80 tcp
GB 51.105.71.137:443 tcp
US 93.184.220.29:80 tcp
US 67.24.169.254:80 tcp
US 204.79.197.203:80 tcp
US 67.24.169.254:80 tcp
US 67.24.169.254:80 tcp
US 8.8.8.8:53 106.89.54.20.in-addr.arpa udp

Files

memory/908-130-0x0000000000530000-0x00000000005F0000-memory.dmp

memory/908-131-0x0000000004F40000-0x0000000004FD2000-memory.dmp

memory/3288-132-0x0000000000000000-mapping.dmp

memory/908-133-0x00000000051C0000-0x00000000051C3000-memory.dmp

memory/3288-134-0x0000000000400000-0x0000000000472000-memory.dmp

memory/3288-135-0x0000000005860000-0x0000000005E04000-memory.dmp

memory/3288-136-0x0000000005350000-0x00000000053EC000-memory.dmp

memory/3288-137-0x00000000053F0000-0x0000000005456000-memory.dmp

memory/3288-138-0x0000000006860000-0x0000000006A22000-memory.dmp

memory/3288-139-0x00000000066F0000-0x00000000066FA000-memory.dmp