matiex | 42ff1648e53d0054bc7c4a5c8a5db648c2a3405415d441c7d5801e52f56bf7a7

General

Target

3bcae8c41a076a0803c99fea75f2aa87.exe
Size

1.1MB
MD5

3bcae8c41a076a0803c99fea75f2aa87
SHA1

f2c1b01afcc3a3af6d947b39419bb4531daa8945
SHA256

42ff1648e53d0054bc7c4a5c8a5db648c2a3405415d441c7d5801e52f56bf7a7
SHA512

220880b1422811db1d9cd79030ea8005a7921ecabb580a3ed537d68bb068005f98b14a87e1f90f796d0d506ccd37675c9153a84e2ea0096bc45d55534f5e4113
SSDEEP

24576:5W5oaXpcB7mVSaccPuvcd5OGQT/1/0nS+7n4SYwqK4zf3RTsAHWAgqChJ+hu3A8K:giecrLh0oQRjeGAZ

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989
Email To:
[email protected]

Signatures

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

Matiex Main payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2508-20-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2508-17-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2508-15-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2508-11-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2508-10-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

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 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

3bcae8c41a076a0803c99fea75f2aa87.exe

description pid process target process

PID 2156 set thread context of 2508 2156 3bcae8c41a076a0803c99fea75f2aa87.exe 3bcae8c41a076a0803c99fea75f2aa87.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1640 2508 WerFault.exe 3bcae8c41a076a0803c99fea75f2aa87.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3bcae8c41a076a0803c99fea75f2aa87.exe3bcae8c41a076a0803c99fea75f2aa87.exe

description pid process

Token: SeDebugPrivilege 2156 3bcae8c41a076a0803c99fea75f2aa87.exe
Token: SeDebugPrivilege 2508 3bcae8c41a076a0803c99fea75f2aa87.exe

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

description	pid	process	target process
PID 2156 set thread context of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe

pid	pid_target	process	target process
1640	2508	WerFault.exe	3bcae8c41a076a0803c99fea75f2aa87.exe

description	pid	process
Token: SeDebugPrivilege	2156	3bcae8c41a076a0803c99fea75f2aa87.exe
Token: SeDebugPrivilege	2508	3bcae8c41a076a0803c99fea75f2aa87.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

3bcae8c41a076a0803c99fea75f2aa87.exe

description	pid	process	target process
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe
PID 2156 wrote to memory of 2508	2156	3bcae8c41a076a0803c99fea75f2aa87.exe	3bcae8c41a076a0803c99fea75f2aa87.exe

C:\Users\Admin\AppData\Local\Temp\3bcae8c41a076a0803c99fea75f2aa87.exe
"C:\Users\Admin\AppData\Local\Temp\3bcae8c41a076a0803c99fea75f2aa87.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\3bcae8c41a076a0803c99fea75f2aa87.exe
  "C:\Users\Admin\AppData\Local\Temp\3bcae8c41a076a0803c99fea75f2aa87.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2508
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 952
    3⤵
    - Program crash
    PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2156-18-0x0000000074E00000-0x00000000754EE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-4-0x0000000074E00000-0x00000000754EE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-1-0x0000000074E00000-0x00000000754EE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-7-0x0000000005D10000-0x0000000005D88000-memory.dmp

Filesize
480KB

Download
memory/2156-3-0x0000000000440000-0x0000000000476000-memory.dmp

Filesize
216KB

Download
memory/2156-5-0x0000000004F20000-0x0000000004F60000-memory.dmp

Filesize
256KB

Download
memory/2156-6-0x0000000005240000-0x00000000052CE000-memory.dmp

Filesize
568KB

Download
memory/2156-0-0x0000000001350000-0x000000000146C000-memory.dmp

Filesize
1.1MB

Download
memory/2156-2-0x0000000004F20000-0x0000000004F60000-memory.dmp

Filesize
256KB

Download
memory/2508-22-0x0000000001150000-0x0000000001190000-memory.dmp

Filesize
256KB

Download
memory/2508-21-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-20-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2508-11-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-10-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-8-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-15-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2508-37-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-38-0x0000000001150000-0x0000000001190000-memory.dmp

Filesize
256KB

Download

Analysis

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