matiex | 9dacb6e97f39f81eee74d0779165f4a74e31f27cec1a67d52c541c52ed169d73

Target

g6yzl1NROz6FgZi.exe
Size

1.2MB
MD5

7a8fa3fe4b23a2ca9612b2b1cf096f6a
SHA1

898d020a309d30d33055978794b2131fa5a18698
SHA256

9dacb6e97f39f81eee74d0779165f4a74e31f27cec1a67d52c541c52ed169d73
SHA512

a77912743ed08c7814d6b3a7a3fea19728561f69891c862ea35957ca4886beded2ffea80342af5d9c7b45a8aa868cd8dc9edcc67b62e1b53f25d5c21be407370

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

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 3 IoCs

resource	yara_rule
behavioral1/memory/1652-66-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1652-67-0x000000000047006E-mapping.dmp	family_matiex
behavioral1/memory/1652-68-0x0000000000400000-0x0000000000476000-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 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

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
5	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 1652	1808	g6yzl1NROz6FgZi.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1812	1652	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1812	WerFault.exe
1812	WerFault.exe
1812	WerFault.exe
1812	WerFault.exe
1812	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	g6yzl1NROz6FgZi.exe
Token: SeDebugPrivilege	1812	WerFault.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1808 wrote to memory of 1652	1808	g6yzl1NROz6FgZi.exe	29
PID 1652 wrote to memory of 1812	1652	g6yzl1NROz6FgZi.exe	31
PID 1652 wrote to memory of 1812	1652	g6yzl1NROz6FgZi.exe	31
PID 1652 wrote to memory of 1812	1652	g6yzl1NROz6FgZi.exe	31
PID 1652 wrote to memory of 1812	1652	g6yzl1NROz6FgZi.exe	31

C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
"C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
  "C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 1300
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1652-66-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1652-68-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1652-70-0x00000000050D0000-0x00000000050D1000-memory.dmp

Filesize
4KB

Download
memory/1808-60-0x0000000001060000-0x0000000001061000-memory.dmp

Filesize
4KB

Download
memory/1808-62-0x0000000000960000-0x0000000000961000-memory.dmp

Filesize
4KB

Download
memory/1808-63-0x0000000000290000-0x00000000002A0000-memory.dmp

Filesize
64KB

Download
memory/1808-64-0x0000000005540000-0x00000000055C4000-memory.dmp

Filesize
528KB

Download
memory/1808-65-0x0000000005600000-0x00000000056A0000-memory.dmp

Filesize
640KB

Download
memory/1812-72-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download