matiex | 992c8c63aa0978780c459f741825cfc6e118b08a26f57cabccb08bd864e2ee5e

General

Target

50208488 AEJEA 81890010169430.exe
Size

581KB
MD5

1b485e01e597352e81f18d2a828edee3
SHA1

09329b97c027cffbc9d34e5d49a3794b7209e246
SHA256

039b571653cbd974ebb9e8c37c048d0f9c4e5302db86a7400ed7a81708cb6c8c
SHA512

a124dbed4e5cc1809f9e473e2c0c84ddce944955ecb50adc8bf57f5134e0f282722a6a4ad23e62e2df333eaebe57878b0d40bae40867f24c9ec5efdb9b9ba53e

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
srvc13.turhost.com
Port:
587
Username:
[email protected]
Password:
italik2015

Signatures

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

Matiex Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2472-126-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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.

Processes:

flow ioc

17 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

50208488 AEJEA 81890010169430.exe

description pid process target process

PID 4576 set thread context of 2472 4576 50208488 AEJEA 81890010169430.exe MSBuild.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4568 2472 WerFault.exe MSBuild.exe
4576 2472 WerFault.exe MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

50208488 AEJEA 81890010169430.exe

pid process

4576 50208488 AEJEA 81890010169430.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 2472 MSBuild.exe

flow	ioc
17	checkip.dyndns.org

description	pid	process	target process
PID 4576 set thread context of 2472	4576	50208488 AEJEA 81890010169430.exe	MSBuild.exe

pid	pid_target	process	target process
4568	2472	WerFault.exe	MSBuild.exe
4576	2472	WerFault.exe	MSBuild.exe

pid	process
4576	50208488 AEJEA 81890010169430.exe

description	pid	process
Token: SeDebugPrivilege	2472	MSBuild.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

50208488 AEJEA 81890010169430.exeMSBuild.exe

description	pid	process	target process
PID 4576 wrote to memory of 2472	4576	50208488 AEJEA 81890010169430.exe	MSBuild.exe
PID 4576 wrote to memory of 2472	4576	50208488 AEJEA 81890010169430.exe	MSBuild.exe
PID 4576 wrote to memory of 2472	4576	50208488 AEJEA 81890010169430.exe	MSBuild.exe
PID 4576 wrote to memory of 2472	4576	50208488 AEJEA 81890010169430.exe	MSBuild.exe
PID 2472 wrote to memory of 4568	2472	MSBuild.exe	WerFault.exe
PID 2472 wrote to memory of 4568	2472	MSBuild.exe	WerFault.exe
PID 2472 wrote to memory of 4568	2472	MSBuild.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\50208488 AEJEA 81890010169430.exe
"C:\Users\Admin\AppData\Local\Temp\50208488 AEJEA 81890010169430.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4576

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 1128
3⤵
- Program crash
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 1128
3⤵
- Program crash
PID:4576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2472 -ip 2472
1⤵
PID:3764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2472-125-0x0000000000000000-mapping.dmp

Download
memory/2472-126-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2472-127-0x00000000054F0000-0x000000000558C000-memory.dmp

Filesize
624KB

Download
memory/2472-128-0x0000000005B40000-0x00000000060E4000-memory.dmp

Filesize
5.6MB

Download
memory/2472-129-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/4568-130-0x0000000000000000-mapping.dmp

Download
memory/4576-124-0x0000000000B3D000-0x0000000000B40000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads