matiex | 1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303

General

Target
1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe
Size 714KB
Sample220309-rtxclacaep
SHA256 1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303
MD5 a1b7c4cb44a36d4f678d43e505890d17
SHA1 9fdc08a85dc110468dbb7839e63269f119fadade
SHA512 4deccb22cdf3d9cd814315b54c5fca9f837bb5858be431719e68cdb04a1e69273888007f2bf2a7b2427f76b74f4b566144501587269d4cc07da370be8240fc38
MD5 SHA1 SHA512

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Signatures

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

Matiex Main Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1948-131-0x00000000000B0000-0x0000000000166000-memory.dmp	family_matiex
behavioral2/memory/3648-132-0x0000000000400000-0x0000000000484000-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 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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.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.

flow	ioc
8	checkip.dyndns.org
11	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1948 set thread context of 3648	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1844	3648	WerFault.exe	81

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4016	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3648	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 1608	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	82
PID 1948 wrote to memory of 1608	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	82
PID 1948 wrote to memory of 1608	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	82
PID 1948 wrote to memory of 3648	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	81
PID 1948 wrote to memory of 3648	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	81
PID 1948 wrote to memory of 3648	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	81
PID 1948 wrote to memory of 3648	1948	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe	81
PID 1608 wrote to memory of 4016	1608	cmd.exe	84
PID 1608 wrote to memory of 4016	1608	cmd.exe	84
PID 1608 wrote to memory of 4016	1608	cmd.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe

C:\Users\Admin\AppData\Local\Temp\1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe
"C:\Users\Admin\AppData\Local\Temp\1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe
  "C:\Users\Admin\AppData\Local\Temp\1fb4d2c2e31c42e486a28283ba1f9ec1b46643ffe2bbe46b0d096382040fe303.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3648
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1600
    3⤵
    - Program crash
    PID:1844
- C:\Windows\SysWOW64\cmd.exe
  cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\e8fb1ebd850140caa97509d1d746dfb1.xml"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\e8fb1ebd850140caa97509d1d746dfb1.xml"
    3⤵
    - Creates scheduled task(s)
    PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:2396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1948-130-0x00000000000B0000-0x0000000000166000-memory.dmp

Download

memory/1948-131-0x00000000000B0000-0x0000000000166000-memory.dmp

Download

memory/3648-132-0x0000000000400000-0x0000000000484000-memory.dmp

Download

memory/3648-135-0x0000000005190000-0x000000000522C000-memory.dmp

Download

memory/3648-136-0x0000000002AF2000-0x0000000002AF3000-memory.dmp

Download

memory/3648-134-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

Download

memory/3648-137-0x0000000002AF3000-0x0000000002AF4000-memory.dmp

Download

memory/3648-133-0x0000000074E90000-0x0000000075640000-memory.dmp

Download

memory/3648-138-0x00000000057E0000-0x0000000005D84000-memory.dmp

Download

memory/3648-140-0x00000000052A0000-0x0000000005306000-memory.dmp

Download

memory/3648-141-0x0000000002AF4000-0x0000000002AF5000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads