matiex | 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d

General

Target

tmp/f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
Size

1.5MB
MD5

8e5e31f5dd73631eddc2cb57e0f48a9a
SHA1

13bd3cf85edef10be8b60c96334eda4f30eda0ba
SHA256

356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d
SHA512

43cf5099575d698ffbd13dc82aa76e2358629d52217cd9d019acfb52c87a29e1ef9750dee756d164787544c76cc68464b014e3f17b3236467952ef95215a94d1

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

Signatures

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

Matiex Main Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/872-62-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/872-63-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/872-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/872-65-0x000000000047032E-mapping.dmp	family_matiex
behavioral1/memory/872-66-0x0000000000400000-0x0000000000476000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

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

4 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	pid	process	target process
PID 976 set thread context of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

pid process

872 f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description pid process

Token: SeDebugPrivilege 872 f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

pid	process
872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	pid	process
Token: SeDebugPrivilege	872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exef4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	pid	process	target process
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 976 wrote to memory of 872	976	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
PID 872 wrote to memory of 1544	872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	netsh.exe
PID 872 wrote to memory of 1544	872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	netsh.exe
PID 872 wrote to memory of 1544	872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	netsh.exe
PID 872 wrote to memory of 1544	872	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

outlook_win_path 1 IoCs

Processes:

f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe

C:\Users\Admin\AppData\Local\Temp\tmp\f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:976

C:\Users\Admin\AppData\Local\Temp\tmp\f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\f4a9803d-192a-4465-81eb-9dee6b5e5132_vbc.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:872

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1544

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

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/872-64-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/872-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/872-68-0x00000000058F0000-0x00000000058F1000-memory.dmp

Filesize
4KB

Download
memory/872-66-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/872-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/872-60-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/872-65-0x000000000047032E-mapping.dmp

Download
memory/872-61-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/976-56-0x0000000076491000-0x0000000076493000-memory.dmp

Filesize
8KB

Download
memory/976-54-0x0000000000A90000-0x0000000000A91000-memory.dmp

Filesize
4KB

Download
memory/976-59-0x00000000082E0000-0x0000000008453000-memory.dmp

Filesize
1.4MB

Download
memory/976-58-0x0000000000600000-0x0000000000607000-memory.dmp

Filesize
28KB

Download
memory/976-57-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/1544-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads