matiex | 9d96a7f4d13ee5d4fe74dace7787d6573111eb1104239f2cfbca79810d309926

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
05-08-2023 09:53

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General

Target

2f771f0658e16ea07035928188e7f6e9.exe
Size

439KB
MD5

2f771f0658e16ea07035928188e7f6e9
SHA1

a8688f20e5e33b3e63d188f9cc36ffbe8756b026
SHA256

9d96a7f4d13ee5d4fe74dace7787d6573111eb1104239f2cfbca79810d309926
SHA512

18a8dae4ac05fd4762b9cb06c7b43ec3bdd1ffd4fbc65769c831fd788d1202f57bc04a9ca1d56692269ed32f661bfb4ac51dc1a8aecf0ed6d328c83002001704
SSDEEP

3072:a1ye7+hTz5pO7+lgtC6fz80CEZjSlvbx52KMJGJtMNkPU:ageGTdY6loC6f4/lTx52KcGJtSn

Score

10^/10

matiex keylogger spyware stealer

Malware Config

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
behavioral1/memory/2464-53-0x0000000000D00000-0x0000000000D74000-memory.dmp	family_matiex

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
T1552.001
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
T1552.001
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

4 freegeoip.app
5 freegeoip.app
2 checkip.dyndns.org
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2712 2464 WerFault.exe 2f771f0658e16ea07035928188e7f6e9.exe

flow	ioc
4	freegeoip.app
5	freegeoip.app
2	checkip.dyndns.org

pid	pid_target	process	target process
2712	2464	WerFault.exe	2f771f0658e16ea07035928188e7f6e9.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

2f771f0658e16ea07035928188e7f6e9.exe

pid	process
2464	2f771f0658e16ea07035928188e7f6e9.exe
2464	2f771f0658e16ea07035928188e7f6e9.exe
2464	2f771f0658e16ea07035928188e7f6e9.exe
2464	2f771f0658e16ea07035928188e7f6e9.exe
2464	2f771f0658e16ea07035928188e7f6e9.exe
2464	2f771f0658e16ea07035928188e7f6e9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

2f771f0658e16ea07035928188e7f6e9.exe

description pid process

Token: SeDebugPrivilege 2464 2f771f0658e16ea07035928188e7f6e9.exe

description	pid	process
Token: SeDebugPrivilege	2464	2f771f0658e16ea07035928188e7f6e9.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2f771f0658e16ea07035928188e7f6e9.exe

description	pid	process	target process
PID 2464 wrote to memory of 2712	2464	2f771f0658e16ea07035928188e7f6e9.exe	WerFault.exe
PID 2464 wrote to memory of 2712	2464	2f771f0658e16ea07035928188e7f6e9.exe	WerFault.exe
PID 2464 wrote to memory of 2712	2464	2f771f0658e16ea07035928188e7f6e9.exe	WerFault.exe
PID 2464 wrote to memory of 2712	2464	2f771f0658e16ea07035928188e7f6e9.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\2f771f0658e16ea07035928188e7f6e9.exe
"C:\Users\Admin\AppData\Local\Temp\2f771f0658e16ea07035928188e7f6e9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 1716
2⤵
- Program crash
PID:2712

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2464-53-0x0000000000D00000-0x0000000000D74000-memory.dmp

Filesize
464KB

Download
memory/2464-54-0x0000000074AB0000-0x000000007519E000-memory.dmp

Filesize
6.9MB

Download
memory/2464-55-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2464-56-0x0000000074AB0000-0x000000007519E000-memory.dmp

Filesize
6.9MB

Download
memory/2464-57-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download