matiex | 4c65f92cd878c051338bda2ff251c8714d6b7ae2bcea06e73bc954661e993571

General

Target

eb5c3f8a581a2bbe778a586697a9b341.exe
Size

870KB
MD5

eb5c3f8a581a2bbe778a586697a9b341
SHA1

4d54306bc2410cece081f1db159665962df9a8da
SHA256

4c65f92cd878c051338bda2ff251c8714d6b7ae2bcea06e73bc954661e993571
SHA512

2878804b5beb838661d983dd7e4ccf48a872a512b4d6260159b3de2fd85d00149869d30a26677500b51b13af6485180441acbdba0a0c7a981c8efb07d4752fc0

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Credentials

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

Extracted

Family

matiex

Credentials

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

Signatures

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

Matiex Main Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2252-127-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral2/memory/2252-128-0x000000000046DCFE-mapping.dmp	family_matiex
behavioral2/memory/2252-135-0x0000000005020000-0x000000000551E000-memory.dmp	family_matiex

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:

eb5c3f8a581a2bbe778a586697a9b341.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	eb5c3f8a581a2bbe778a586697a9b341.exe
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	eb5c3f8a581a2bbe778a586697a9b341.exe
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	eb5c3f8a581a2bbe778a586697a9b341.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

33 freegeoip.app
29 checkip.dyndns.org
32 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

description pid process target process

PID 2588 set thread context of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

pid process

2252 eb5c3f8a581a2bbe778a586697a9b341.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

description pid process

Token: SeDebugPrivilege 2252 eb5c3f8a581a2bbe778a586697a9b341.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

pid process

2252 eb5c3f8a581a2bbe778a586697a9b341.exe

flow	ioc
33	freegeoip.app
29	checkip.dyndns.org
32	freegeoip.app

description	pid	process	target process
PID 2588 set thread context of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe

pid	process
2252	eb5c3f8a581a2bbe778a586697a9b341.exe

description	pid	process
Token: SeDebugPrivilege	2252	eb5c3f8a581a2bbe778a586697a9b341.exe

pid	process
2252	eb5c3f8a581a2bbe778a586697a9b341.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

description	pid	process	target process
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe
PID 2588 wrote to memory of 2252	2588	eb5c3f8a581a2bbe778a586697a9b341.exe	eb5c3f8a581a2bbe778a586697a9b341.exe

outlook_office_path 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	eb5c3f8a581a2bbe778a586697a9b341.exe

outlook_win_path 1 IoCs

Processes:

eb5c3f8a581a2bbe778a586697a9b341.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	eb5c3f8a581a2bbe778a586697a9b341.exe

C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe
"C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2588

C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe
"C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2252

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\eb5c3f8a581a2bbe778a586697a9b341.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/2252-127-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2252-138-0x0000000006CC0000-0x0000000006CC1000-memory.dmp

Filesize
4KB

Download
memory/2252-135-0x0000000005020000-0x000000000551E000-memory.dmp

Filesize
5.0MB

Download
memory/2252-134-0x0000000005090000-0x0000000005091000-memory.dmp

Filesize
4KB

Download
memory/2252-128-0x000000000046DCFE-mapping.dmp

Download
memory/2588-122-0x00000000032B0000-0x0000000003342000-memory.dmp

Filesize
584KB

Download
memory/2588-126-0x00000000092A0000-0x0000000009353000-memory.dmp

Filesize
716KB

Download
memory/2588-125-0x0000000009060000-0x0000000009061000-memory.dmp

Filesize
4KB

Download
memory/2588-124-0x0000000005BC0000-0x0000000005BD1000-memory.dmp

Filesize
68KB

Download
memory/2588-123-0x00000000059E0000-0x00000000059E1000-memory.dmp

Filesize
4KB

Download
memory/2588-118-0x0000000000F70000-0x0000000000F71000-memory.dmp

Filesize
4KB

Download
memory/2588-121-0x00000000058F0000-0x00000000058F1000-memory.dmp

Filesize
4KB

Download
memory/2588-120-0x0000000005F40000-0x0000000005F41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads