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

Processes:

resource	yara_rule
behavioral2/memory/744-125-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral2/memory/744-126-0x000000000047006E-mapping.dmp	family_matiex
behavioral2/memory/744-133-0x0000000005580000-0x000000000561C000-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
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

15 freegeoip.app
16 freegeoip.app
13 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

g6yzl1NROz6FgZi.exe

description pid process target process

PID 3016 set thread context of 744 3016 g6yzl1NROz6FgZi.exe g6yzl1NROz6FgZi.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

g6yzl1NROz6FgZi.exeg6yzl1NROz6FgZi.exe

pid process

3016 g6yzl1NROz6FgZi.exe
3016 g6yzl1NROz6FgZi.exe
744 g6yzl1NROz6FgZi.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

g6yzl1NROz6FgZi.exeg6yzl1NROz6FgZi.exe

description pid process

Token: SeDebugPrivilege 3016 g6yzl1NROz6FgZi.exe
Token: SeDebugPrivilege 744 g6yzl1NROz6FgZi.exe

flow	ioc
15	freegeoip.app
16	freegeoip.app
13	checkip.dyndns.org

description	pid	process	target process
PID 3016 set thread context of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe

pid	process
3016	g6yzl1NROz6FgZi.exe
3016	g6yzl1NROz6FgZi.exe
744	g6yzl1NROz6FgZi.exe

description	pid	process
Token: SeDebugPrivilege	3016	g6yzl1NROz6FgZi.exe
Token: SeDebugPrivilege	744	g6yzl1NROz6FgZi.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

g6yzl1NROz6FgZi.exeg6yzl1NROz6FgZi.exe

description	pid	process	target process
PID 3016 wrote to memory of 3700	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 3700	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 3700	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 3016 wrote to memory of 744	3016	g6yzl1NROz6FgZi.exe	g6yzl1NROz6FgZi.exe
PID 744 wrote to memory of 2004	744	g6yzl1NROz6FgZi.exe	netsh.exe
PID 744 wrote to memory of 2004	744	g6yzl1NROz6FgZi.exe	netsh.exe
PID 744 wrote to memory of 2004	744	g6yzl1NROz6FgZi.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
"C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
  "C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
  2⤵
  PID:3700
- C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
  "C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:744
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:2004

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\g6yzl1NROz6FgZi.exe.log

MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
memory/744-125-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/744-135-0x00000000070A0000-0x00000000070A1000-memory.dmp

Filesize
4KB

Download
memory/744-133-0x0000000005580000-0x000000000561C000-memory.dmp

Filesize
624KB

Download
memory/744-132-0x0000000005740000-0x0000000005741000-memory.dmp

Filesize
4KB

Download
memory/744-126-0x000000000047006E-mapping.dmp

Download
memory/2004-134-0x0000000000000000-mapping.dmp

Download
memory/3016-119-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/3016-123-0x0000000005DC0000-0x0000000005E44000-memory.dmp

Filesize
528KB

Download
memory/3016-124-0x0000000008370000-0x0000000008410000-memory.dmp

Filesize
640KB

Download
memory/3016-122-0x0000000004D20000-0x0000000004DBC000-memory.dmp

Filesize
624KB

Download
memory/3016-121-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/3016-120-0x0000000005090000-0x0000000005091000-memory.dmp

Filesize
4KB

Download
memory/3016-114-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/3016-118-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download
memory/3016-117-0x0000000005390000-0x0000000005391000-memory.dmp

Filesize
4KB

Download
memory/3016-116-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download