matiex | 315e6e844a325bdbdbd68365d389adb3e31c55cf7323936f14f3e48f7e5f3014

General

Target

0908000090000.exe
Size

3.4MB
MD5

2b16401ac7e40343abde78deb36f0746
SHA1

6c441249071a590f6a1178cc276f87f8641c8cf4
SHA256

315e6e844a325bdbdbd68365d389adb3e31c55cf7323936f14f3e48f7e5f3014
SHA512

3ec8ac63db7b07b9a43b37f27cc80da7543baab0c259e25de2e92cc058427b385d4dc6aa91fc12cdd3b1d6d40c20df1a5c7731ec750a91770f98631c1840a9b8

Score

10^/10

matiex keylogger persistence spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
srvc13.turhost.com
Port:
587
Username:
info@bilgitekdagitim.com
Password:
italik2015

Signatures

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

Matiex Main Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3308-8-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral2/memory/3308-9-0x000000000047023E-mapping.dmp	family_matiex

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

0908000090000.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\0908000090000.exe\""	0908000090000.exe

Drops startup file 2 IoCs

Processes:

0908000090000.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0908000090000.exe	0908000090000.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0908000090000.exe	0908000090000.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0908000090000.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0908000090000.exe"	0908000090000.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\0908000090000.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0908000090000.exe"	0908000090000.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

11 checkip.dyndns.org
14 freegeoip.app
15 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

0908000090000.exe

description pid process target process

PID 648 set thread context of 3308 648 0908000090000.exe 0908000090000.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0908000090000.exe

pid process

3308 0908000090000.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

0908000090000.exe

description pid process

Token: SeDebugPrivilege 3308 0908000090000.exe

flow	ioc
11	checkip.dyndns.org
14	freegeoip.app
15	freegeoip.app

description	pid	process	target process
PID 648 set thread context of 3308	648	0908000090000.exe	0908000090000.exe

pid	process
3308	0908000090000.exe

description	pid	process
Token: SeDebugPrivilege	3308	0908000090000.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

0908000090000.exe0908000090000.exe

description	pid	process	target process
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 648 wrote to memory of 3308	648	0908000090000.exe	0908000090000.exe
PID 3308 wrote to memory of 2012	3308	0908000090000.exe	netsh.exe
PID 3308 wrote to memory of 2012	3308	0908000090000.exe	netsh.exe
PID 3308 wrote to memory of 2012	3308	0908000090000.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\0908000090000.exe
"C:\Users\Admin\AppData\Local\Temp\0908000090000.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:648

C:\Users\Admin\AppData\Local\Temp\0908000090000.exe
"C:\Users\Admin\AppData\Local\Temp\0908000090000.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3308

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0908000090000.exe.log
MD5
c0ad7b531cb050d170ceb51110be64db

SHA1
1fc4ff77fe0838a1fec8723139c25d5708ed8c0b

SHA256
2212589a88f2f3fa5c7127e548ea493b3ab2927e2417b54928ec82e3a42a424c

SHA512
148ecaa1ee3259ab2ec63abb28af5daad10534bd48e9afec2984d343c8f9c361f8caed04b32bb0de85d41e3329935e6d100d5036e33bc8fadcda1f7dd1bde436

Download Submit
memory/648-3-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/648-5-0x0000000005880000-0x0000000005881000-memory.dmp

Filesize
4KB

Download
memory/648-6-0x00000000031D0000-0x000000000324D000-memory.dmp

Filesize
500KB

Download
memory/648-7-0x00000000082A0000-0x00000000082A1000-memory.dmp

Filesize
4KB

Download
memory/648-2-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2012-17-0x0000000000000000-mapping.dmp

Download
memory/3308-9-0x000000000047023E-mapping.dmp

Download
memory/3308-11-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/3308-16-0x0000000005C70000-0x0000000005C71000-memory.dmp

Filesize
4KB

Download
memory/3308-8-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3308-18-0x00000000072E0000-0x00000000072E1000-memory.dmp

Filesize
4KB

Download
memory/3308-19-0x00000000074B0000-0x00000000074B1000-memory.dmp

Filesize
4KB

Download
memory/3308-20-0x0000000007200000-0x0000000007201000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads