matiex | c1d52a5d83b3f1660b9ecdb1ad26fb3b7edc7f02bcec4dd320e237a62c433d07

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 16:13

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General

Target

JHW09000900.exe
Size

656KB
MD5

54dc35ab78394f31963d2f0bd30a6b7b
SHA1

4904138a54baf5cb440933e502ff6e8cb6b00829
SHA256

ec45a354ba2c7cba3c064325f968d62cdb3999122b76080dd145cc49f13bf7e7
SHA512

c54d2abf270dd31eb9e3bf44762803f3d1e4d41a6ea43fd37003a64983fddbac5545a5dafe15b3224aadb7f25037c8dc8818480210a30ef6ed69fef326895d7b
SSDEEP

12288:lrf0P3HD5Y2fxOZAcLlQuhntyyFgF1/OV0b4R7wZSEleGxCRfdbBKqS/XWsHFsdn:2P3H1Y2f4HLVnILvOV0b4R7ASEleGmft

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

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 1 IoCs

resource	yara_rule
behavioral2/memory/4196-2-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
15	freegeoip.app
3	checkip.dyndns.org
13	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 488 set thread context of 4196	488	JHW09000900.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
220	4196	WerFault.exe	84

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
488	JHW09000900.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 488 wrote to memory of 4196	488	JHW09000900.exe	84
PID 488 wrote to memory of 4196	488	JHW09000900.exe	84
PID 488 wrote to memory of 4196	488	JHW09000900.exe	84
PID 488 wrote to memory of 4196	488	JHW09000900.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\JHW09000900.exe
"C:\Users\Admin\AppData\Local\Temp\JHW09000900.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:488
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\JHW09000900.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 2692
    3⤵
    - Program crash
    PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4196 -ip 4196
1⤵
PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/488-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/488-1-0x0000000000610000-0x0000000000612000-memory.dmp

Filesize
8KB

Download
memory/488-3-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4196-2-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4196-4-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/4196-5-0x0000000005520000-0x00000000055BC000-memory.dmp

Filesize
624KB

Download
memory/4196-6-0x00000000055C0000-0x0000000005626000-memory.dmp

Filesize
408KB

Download
memory/4196-7-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/4196-8-0x0000000006AF0000-0x0000000007094000-memory.dmp

Filesize
5.6MB

Download
memory/4196-9-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download