matiex | 0513fda6f36b07e54a0379c946286304deb8f60b7e37016dc2fab40182211c24

General

Target

rznfT9ZOchwd1lv.exe
Size

877KB
MD5

f3dfd893926ee70d0b7edc785122627a
SHA1

d8aeb366373e6f6d6621c8f8559050730373bb17
SHA256

0513fda6f36b07e54a0379c946286304deb8f60b7e37016dc2fab40182211c24
SHA512

c129b2bca515f0a7569115324ac26caebba75adcf1137027f80f94a10585b98bce9d16deee72dccd26b2e27717dd7e89324cac2542df57d367c265fdf7903975

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

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/912-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/912-65-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/912-66-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/912-67-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

rznfT9ZOchwd1lv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rznfT9ZOchwd1lv.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rznfT9ZOchwd1lv.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rznfT9ZOchwd1lv.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

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

Processes:

rznfT9ZOchwd1lv.exe

description pid process target process

PID 1660 set thread context of 912 1660 rznfT9ZOchwd1lv.exe rznfT9ZOchwd1lv.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

804 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exerznfT9ZOchwd1lv.exe

pid process

1368 powershell.exe
912 rznfT9ZOchwd1lv.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exerznfT9ZOchwd1lv.exe

description pid process

Token: SeDebugPrivilege 1368 powershell.exe
Token: SeDebugPrivilege 912 rznfT9ZOchwd1lv.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rznfT9ZOchwd1lv.exe

pid process

912 rznfT9ZOchwd1lv.exe

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

description	pid	process	target process
PID 1660 set thread context of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe

pid	process
804	schtasks.exe

pid	process
1368	powershell.exe
912	rznfT9ZOchwd1lv.exe

description	pid	process
Token: SeDebugPrivilege	1368	powershell.exe
Token: SeDebugPrivilege	912	rznfT9ZOchwd1lv.exe

pid	process
912	rznfT9ZOchwd1lv.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

rznfT9ZOchwd1lv.exerznfT9ZOchwd1lv.exe

description	pid	process	target process
PID 1660 wrote to memory of 1368	1660	rznfT9ZOchwd1lv.exe	powershell.exe
PID 1660 wrote to memory of 1368	1660	rznfT9ZOchwd1lv.exe	powershell.exe
PID 1660 wrote to memory of 1368	1660	rznfT9ZOchwd1lv.exe	powershell.exe
PID 1660 wrote to memory of 1368	1660	rznfT9ZOchwd1lv.exe	powershell.exe
PID 1660 wrote to memory of 804	1660	rznfT9ZOchwd1lv.exe	schtasks.exe
PID 1660 wrote to memory of 804	1660	rznfT9ZOchwd1lv.exe	schtasks.exe
PID 1660 wrote to memory of 804	1660	rznfT9ZOchwd1lv.exe	schtasks.exe
PID 1660 wrote to memory of 804	1660	rznfT9ZOchwd1lv.exe	schtasks.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 1660 wrote to memory of 912	1660	rznfT9ZOchwd1lv.exe	rznfT9ZOchwd1lv.exe
PID 912 wrote to memory of 856	912	rznfT9ZOchwd1lv.exe	netsh.exe
PID 912 wrote to memory of 856	912	rznfT9ZOchwd1lv.exe	netsh.exe
PID 912 wrote to memory of 856	912	rznfT9ZOchwd1lv.exe	netsh.exe
PID 912 wrote to memory of 856	912	rznfT9ZOchwd1lv.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

rznfT9ZOchwd1lv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rznfT9ZOchwd1lv.exe

outlook_win_path 1 IoCs

Processes:

rznfT9ZOchwd1lv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rznfT9ZOchwd1lv.exe

C:\Users\Admin\AppData\Local\Temp\rznfT9ZOchwd1lv.exe
"C:\Users\Admin\AppData\Local\Temp\rznfT9ZOchwd1lv.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1660

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BhqrxCLFHP.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1368

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BhqrxCLFHP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC73.tmp"
2⤵
- Creates scheduled task(s)
PID:804

C:\Users\Admin\AppData\Local\Temp\rznfT9ZOchwd1lv.exe
"C:\Users\Admin\AppData\Local\Temp\rznfT9ZOchwd1lv.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:912

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:856

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCC73.tmp
MD5
075b75634d9908132b48ef7cae6c45f8

SHA1
8d469bfbc984bbf940b06f1fb53fb092f04bf93b

SHA256
b595ee070b4f3894aff647357bf2eee821109b3a77fcb9326212cc0a3ed5de41

SHA512
95548be905c033eb04eca132503b5d1594e22d4fdbf683a167cdb84fda4fb1a8502a7db50ce68ac2a18ddf6899d02a11f2ac5b88ca4001e48a6504c72171678a

Download Submit
memory/912-64-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/912-71-0x0000000000A20000-0x0000000000A21000-memory.dmp

Filesize
4KB

Download
memory/912-67-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/912-66-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/912-65-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/912-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/912-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1368-68-0x0000000001BF0000-0x0000000001BF1000-memory.dmp

Filesize
4KB

Download
memory/1368-70-0x0000000001BF2000-0x0000000001BF4000-memory.dmp

Filesize
8KB

Download
memory/1368-69-0x0000000001BF1000-0x0000000001BF2000-memory.dmp

Filesize
4KB

Download
memory/1660-59-0x0000000005220000-0x00000000052E0000-memory.dmp

Filesize
768KB

Download
memory/1660-58-0x0000000000570000-0x000000000057C000-memory.dmp

Filesize
48KB

Download
memory/1660-57-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

Filesize
4KB

Download
memory/1660-55-0x0000000001120000-0x0000000001202000-memory.dmp

Filesize
904KB

Download
memory/1660-56-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads