matiex | a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766

General

Target

a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe
Size

463KB
MD5

c64e46b8a01abad95b7f9e317778f1da
SHA1

f27d976223aa8bd7bcbc28e59fd2eb75ed33bbb8
SHA256

a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766
SHA512

6ffe5a9b183a82b088966be5611de20c29ae6c03cfd148d6091e16ce0a7b61a2f64459e2007480c013fbe479588df70ccb500491e70d1b466a8473d6cd58a3c4

Score

10^/10

matiex metastealer collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
SMTP.yandex.com
Port:
587
Username:
[email protected]
Password:
yahdera121

Signatures

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

Matiex Main Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1780-137-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer
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	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
30	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 972 set thread context of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4628	1780	WerFault.exe	90

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1780	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90
PID 972 wrote to memory of 1780	972	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe	90

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	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.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	a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe

C:\Users\Admin\AppData\Local\Temp\a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe
"C:\Users\Admin\AppData\Local\Temp\a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:972
- C:\Users\Admin\AppData\Local\Temp\a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1780
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1732
    3⤵
    - Program crash
    PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1780 -ip 1780
1⤵
PID:2996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a1b432f03f0e88407c71b210a5f013ddeff35a1fd7fe36f5fd03808a9474c766.exe.log

Filesize
1KB

MD5
6f8f3a9a57cb30e686d3355e656031e0

SHA1
acccd6befb1a2f40e662280bc5182e086a0d079b

SHA256
283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

SHA512
8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

Download Submit
memory/972-130-0x0000000000200000-0x000000000027A000-memory.dmp

Filesize
488KB

Download
memory/972-131-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/972-132-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/972-133-0x0000000004DC0000-0x0000000004DCA000-memory.dmp

Filesize
40KB

Download
memory/972-134-0x0000000005D80000-0x00000000062AC000-memory.dmp

Filesize
5.2MB

Download
memory/972-135-0x0000000006460000-0x00000000064FC000-memory.dmp

Filesize
624KB

Download
memory/1780-137-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1780-139-0x0000000005710000-0x0000000005776000-memory.dmp

Filesize
408KB

Download

Analysis

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