matiex | 23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe

General

Target

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
Size

190KB
MD5

d7efd8fe990580ffed407998373bcb36
SHA1

4d73d3e0509781c95ff7dea39e598b258e1de893
SHA256

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe
SHA512

0df7b4b66726ded97930bfe283c4e0ec21256ea4cc4c321e8994558a8aed2d16a4af276630ec02054fa61797cf137778c26020dffa5a223271b8e4eba14a63a7

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

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/788-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_matiex
behavioral1/memory/788-71-0x0000000000400000-0x0000000000426000-memory.dmp	family_matiex
behavioral1/memory/788-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_matiex
behavioral1/memory/788-75-0x0000000000400000-0x0000000000426000-memory.dmp	family_matiex
behavioral1/memory/788-77-0x0000000000400000-0x0000000000426000-memory.dmp	family_matiex

Drops startup file 2 IoCs

Processes:

Powershell.exe

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.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	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.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

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

description	pid	process	target process
PID 1192 set thread context of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

Powershell.exe23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

pid	process
1556	Powershell.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Powershell.exe23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

description	pid	process
Token: SeDebugPrivilege	1556	Powershell.exe
Token: SeDebugPrivilege	788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

pid process

788 23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

pid	process
788	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

description	pid	process	target process
PID 1192 wrote to memory of 1556	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	Powershell.exe
PID 1192 wrote to memory of 1556	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	Powershell.exe
PID 1192 wrote to memory of 1556	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	Powershell.exe
PID 1192 wrote to memory of 1556	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	Powershell.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
PID 1192 wrote to memory of 788	1192	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

outlook_office_path 1 IoCs

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.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	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

outlook_win_path 1 IoCs

Processes:

23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.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	23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe

C:\Users\Admin\AppData\Local\Temp\23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
"C:\Users\Admin\AppData\Local\Temp\23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1192

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1556

C:\Users\Admin\AppData\Local\Temp\23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe
"C:\Users\Admin\AppData\Local\Temp\23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:788

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/788-77-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-80-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/788-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-75-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-71-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/788-81-0x00000000056B5000-0x00000000056C6000-memory.dmp

Filesize
68KB

Download
memory/788-79-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/1192-56-0x0000000074450000-0x0000000074B3E000-memory.dmp

Filesize
6.9MB

Download
memory/1192-55-0x0000000000E50000-0x0000000000E86000-memory.dmp

Filesize
216KB

Download
memory/1192-78-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/1192-57-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1192-64-0x00000000001F0000-0x0000000000204000-memory.dmp

Filesize
80KB

Download
memory/1556-63-0x0000000002620000-0x000000000326A000-memory.dmp

Filesize
12.3MB

Download
memory/1556-62-0x0000000002620000-0x000000000326A000-memory.dmp

Filesize
12.3MB

Download
memory/1556-61-0x000000006FF20000-0x00000000704CB000-memory.dmp

Filesize
5.7MB

Download
memory/1556-60-0x0000000002620000-0x000000000326A000-memory.dmp

Filesize
12.3MB

Download
memory/1556-59-0x000000006FF20000-0x00000000704CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads