matiex | 8d8c5013933443f1f3e20db22a1abd56815cdd61b866f7953e032678f5e3d049

General

Target

NKP210102-NIT-SC2.exe
Size

897KB
MD5

65b5174a50b047604c2aed66369a4a88
SHA1

853e75392f379c6d9f655c53c881c45287ab2f6b
SHA256

8d8c5013933443f1f3e20db22a1abd56815cdd61b866f7953e032678f5e3d049
SHA512

04e5a3e89538fc8a7b83773f52a9424da327f7fc2709e2f64f977056078e9bee87fc9ebd29619607a63b8844d084f093aa8da7d223eb97154bdb8137312b0d0e

Score

10^/10

matiex keylogger stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.revistaeducar.com.ar
Port:
25
Username:
[email protected]
Password:
somchai#3774

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.revistaeducar.com.ar
Port:
25
Username:
[email protected]
Password:
somchai#3774

Signatures

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

Matiex Main Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/680-7-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/680-8-0x000000000046E60E-mapping.dmp	family_matiex
behavioral1/memory/680-9-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/680-10-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex

Drops startup file 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.url RegSvcs.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.

Processes:

flow ioc

5 checkip.dyndns.org
10 freegeoip.app
11 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

NKP210102-NIT-SC2.exe

description pid process target process

PID 1188 set thread context of 680 1188 NKP210102-NIT-SC2.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

RegSvcs.exe

pid process

680 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 680 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

680 RegSvcs.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.url	RegSvcs.exe

flow	ioc
5	checkip.dyndns.org
10	freegeoip.app
11	freegeoip.app

description	pid	process	target process
PID 1188 set thread context of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe

pid	process
680	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	680	RegSvcs.exe

pid	process
680	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

NKP210102-NIT-SC2.exe

description	pid	process	target process
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe
PID 1188 wrote to memory of 680	1188	NKP210102-NIT-SC2.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\NKP210102-NIT-SC2.exe
"C:\Users\Admin\AppData\Local\Temp\NKP210102-NIT-SC2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1188

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:680

Network

MITRE ATT&CK Matrix

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Downloads

memory/680-7-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/680-8-0x000000000046E60E-mapping.dmp

Download
memory/680-9-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/680-10-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/680-11-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/1188-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/1188-3-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/1188-5-0x00000000004A0000-0x00000000004AE000-memory.dmp

Filesize
56KB

Download
memory/1188-6-0x00000000058D0000-0x0000000005996000-memory.dmp

Filesize
792KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads