matiex | cd4d29b138b75a9d1a10fa7d724168ae155ef7779d97c042e8014b9ae6f93087

General

Target

$PLUGINSDIR/lqwipxz.dll
Size

17KB
MD5

148e2440033d4c9c35f68f4072ba5d1e
SHA1

480b6d0a378fa7e785e79de7e0f757dd7e8124e3
SHA256

47094fa8accf250c8df2021a0180140be6f1091415d44e9927e5ed6ba6c60bb4
SHA512

1a272ef57ad29b3481a1f18530168d1af7cc6a20bef32249412e0eadcc7dbd306157c3b8fca971ac21bde9cf7229370124cce29038bd3cc1ef93a03008c0367d
SSDEEP

384:mD4wra/y5RdIX0lcjIbqjC+/6ztBp9+JTjL:K4wrNp60lC8+C+/OpuTj

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

Signatures

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

Matiex Main payload 7 IoCs

resource	yara_rule
behavioral3/memory/2704-3-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-6-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-8-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-10-0x0000000000B30000-0x0000000000BA6000-memory.dmp	family_matiex
behavioral3/memory/2704-12-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex
behavioral3/memory/2704-15-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex
behavioral3/memory/2704-16-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2704	rundll32.exe
9	2704	rundll32.exe
11	2704	rundll32.exe

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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.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.

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 2704	2516	rundll32.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2440	2704	WerFault.exe	29

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	rundll32.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 1900 wrote to memory of 2516	1900	rundll32.exe	28
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2516 wrote to memory of 2704	2516	rundll32.exe	29
PID 2704 wrote to memory of 2440	2704	rundll32.exe	31
PID 2704 wrote to memory of 2440	2704	rundll32.exe	31
PID 2704 wrote to memory of 2440	2704	rundll32.exe	31
PID 2704 wrote to memory of 2440	2704	rundll32.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
    3⤵
    - Blocklisted process makes network request
    - Accesses Microsoft Outlook profiles
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - outlook_office_path
    - outlook_win_path
    PID:2704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 1800
      4⤵
      Program crash
      PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2516-4-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-1-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-2-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-0-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2704-8-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-6-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-3-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-9-0x0000000073D50000-0x000000007443E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-10-0x0000000000B30000-0x0000000000BA6000-memory.dmp

Filesize
472KB

Download
memory/2704-11-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-12-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-13-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-14-0x0000000073D50000-0x000000007443E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-15-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-16-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download

Analysis

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