matiex | 9fe57643fb90f5f1ca560a6a9861296d58290795f061f22b15dd19dcfeb882bc

General

Target

638d983d397e9ce408d91ae82b632106.exe
Size

640KB
MD5

638d983d397e9ce408d91ae82b632106
SHA1

477a1c06ff37abf3494373de86cfbf2d44d6bc1f
SHA256

9fe57643fb90f5f1ca560a6a9861296d58290795f061f22b15dd19dcfeb882bc
SHA512

04053481e52235cc3b6f2a21ccfd92ad9c448c80c9560ecd9ea03a0c9d771843e6830b03a0c9a2ec488a6855e0f13470f4beef3ef14608587850ecc92965e2c5
SSDEEP

12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZW:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pcQ

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 1 IoCs

resource	yara_rule
behavioral2/memory/3636-137-0x0000000000400000-0x0000000000482000-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 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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	638d983d397e9ce408d91ae82b632106.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	638d983d397e9ce408d91ae82b632106.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	638d983d397e9ce408d91ae82b632106.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.

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 3636	4936	638d983d397e9ce408d91ae82b632106.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1648	3636	WerFault.exe	82

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

pid	Process
1588	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4936	638d983d397e9ce408d91ae82b632106.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3636	638d983d397e9ce408d91ae82b632106.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2960	4936	638d983d397e9ce408d91ae82b632106.exe	81
PID 4936 wrote to memory of 2960	4936	638d983d397e9ce408d91ae82b632106.exe	81
PID 4936 wrote to memory of 2960	4936	638d983d397e9ce408d91ae82b632106.exe	81
PID 4936 wrote to memory of 3636	4936	638d983d397e9ce408d91ae82b632106.exe	82
PID 4936 wrote to memory of 3636	4936	638d983d397e9ce408d91ae82b632106.exe	82
PID 4936 wrote to memory of 3636	4936	638d983d397e9ce408d91ae82b632106.exe	82
PID 4936 wrote to memory of 3636	4936	638d983d397e9ce408d91ae82b632106.exe	82
PID 2960 wrote to memory of 1588	2960	cmd.exe	83
PID 2960 wrote to memory of 1588	2960	cmd.exe	83
PID 2960 wrote to memory of 1588	2960	cmd.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	638d983d397e9ce408d91ae82b632106.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	638d983d397e9ce408d91ae82b632106.exe

C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe
"C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\cmd.exe
  cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:1588
- C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe
  "C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 1892
    3⤵
    - Program crash
    PID:1648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3636 -ip 3636
1⤵
PID:4148

Network

MITRE ATT&CK Enterprise 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

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml

Filesize
1KB

MD5
e93833a5dc811722d20e043ecd456098

SHA1
0b3219317882da8cd167b9129384d11d9f08e482

SHA256
4e6246a2b91980f9c86b85ec9941875fe41bdb8c13ef7f189ee4560fa8a8e189

SHA512
c69144a3aa4a52cf888c206d85d41db7aeca5348b186d45cf027b7a364145e870bced07595f84002f7f36dceed3bfc2a85848113be1c5b1e72240979b019c1b5

Download Submit
memory/3636-137-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3636-139-0x00000000055E0000-0x000000000567C000-memory.dmp

Filesize
624KB

Download
memory/3636-140-0x0000000005C30000-0x00000000061D4000-memory.dmp

Filesize
5.6MB

Download
memory/3636-141-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/4936-134-0x0000000000CFA000-0x0000000000D00000-memory.dmp

Filesize
24KB

Download
memory/4936-136-0x0000000000CFA000-0x0000000000D00000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads