Malware Analysis Report

2024-10-18 23:03

Sample ID 220415-plgwtscad9
Target a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26
SHA256 a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26
Tags
evasion matiex metastealer 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

a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26

Threat Level: Known bad

The file a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26 was found to be: Known bad.

Malicious Activity Summary

evasion matiex metastealer collection keylogger spyware stealer

Matiex

Matiex Main Payload

Meta Stealer Stealer

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks BIOS information in registry

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Maps connected drives based on registry

Suspicious use of SetThreadContext

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-15 12:24

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-15 12:24

Reported

2022-04-15 12:27

Platform

win7-20220414-en

Max time kernel

56s

Max time network

44s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe"

Signatures

Looks for VirtualBox Guest Additions in registry

evasion

Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1936 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 816 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 816 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 816 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 816 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 668 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 668 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 668 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 668 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 588 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 588 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 588 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1936 wrote to memory of 588 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

Network

N/A

Files

memory/1936-54-0x00000000003B0000-0x0000000000444000-memory.dmp

memory/1936-55-0x0000000000BD0000-0x0000000000BEC000-memory.dmp

memory/1936-56-0x0000000007F10000-0x0000000007FCA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-15 12:24

Reported

2022-04-15 12:27

Platform

win10v2004-en-20220113

Max time kernel

119s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe"

Signatures

Matiex

stealer keylogger matiex

Matiex Main Payload

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

Meta Stealer Stealer

stealer metastealer

Looks for VirtualBox Guest Additions in registry

evasion

Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Reads data files stored by FTP 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-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Looks up external IP address via web service

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

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
PID 1684 wrote to memory of 4776 N/A C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe"

C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

"{path}"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4776 -ip 4776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 1728

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
US 193.122.130.0:80 checkip.dyndns.org tcp
US 8.8.8.8:53 176.122.125.40.in-addr.arpa udp

Files

memory/1684-130-0x0000000000FB0000-0x0000000001044000-memory.dmp

memory/1684-131-0x00000000060D0000-0x0000000006674000-memory.dmp

memory/1684-132-0x0000000005A10000-0x0000000005AA2000-memory.dmp

memory/1684-133-0x00000000059F0000-0x00000000059FA000-memory.dmp

memory/1684-134-0x00000000096A0000-0x0000000009BCC000-memory.dmp

memory/1684-135-0x0000000009FA0000-0x000000000A03C000-memory.dmp

memory/1684-136-0x000000000A040000-0x000000000A0A6000-memory.dmp

memory/4776-137-0x0000000000000000-mapping.dmp

memory/4776-138-0x0000000000400000-0x0000000000476000-memory.dmp