matiex | 90e619618b703bea1df59525473134c74f25b482d7362a3298ce0257334c22db

General

Target
0ebc42b2f474da60c43d8fb557a046b4.exe
Size 710KB
Sample230111-tdb3tsdd77
SHA256 90e619618b703bea1df59525473134c74f25b482d7362a3298ce0257334c22db
MD5 0ebc42b2f474da60c43d8fb557a046b4
SHA1 ab2f01ed1b9e17d6838eb41d7d790610fe0fa701
SHA512 7268e3f9d186a7773b48dfd86e00ea79beea4d3830605f07dad3f7ffd597a8df396413dd2f9cb6014aaf7582ad279281fdc3e79ecc60dd960687f05212bf5b17
SSDEEP 12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZWpfb:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pcN
MD5 SHA1 SHA512 SSDEEP

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/2220-137-0x0000000000400000-0x0000000000482000-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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ebc42b2f474da60c43d8fb557a046b4.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ebc42b2f474da60c43d8fb557a046b4.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ebc42b2f474da60c43d8fb557a046b4.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
16	freegeoip.app
17	freegeoip.app
10	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1192 set thread context of 2220	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1464	2220	WerFault.exe	80

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
3756	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1192	0ebc42b2f474da60c43d8fb557a046b4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	0ebc42b2f474da60c43d8fb557a046b4.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1680	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	81
PID 1192 wrote to memory of 1680	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	81
PID 1192 wrote to memory of 1680	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	81
PID 1192 wrote to memory of 2220	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	80
PID 1192 wrote to memory of 2220	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	80
PID 1192 wrote to memory of 2220	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	80
PID 1192 wrote to memory of 2220	1192	0ebc42b2f474da60c43d8fb557a046b4.exe	80
PID 1680 wrote to memory of 3756	1680	cmd.exe	82
PID 1680 wrote to memory of 3756	1680	cmd.exe	82
PID 1680 wrote to memory of 3756	1680	cmd.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ebc42b2f474da60c43d8fb557a046b4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ebc42b2f474da60c43d8fb557a046b4.exe

C:\Users\Admin\AppData\Local\Temp\0ebc42b2f474da60c43d8fb557a046b4.exe
"C:\Users\Admin\AppData\Local\Temp\0ebc42b2f474da60c43d8fb557a046b4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\0ebc42b2f474da60c43d8fb557a046b4.exe
  "C:\Users\Admin\AppData\Local\Temp\0ebc42b2f474da60c43d8fb557a046b4.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2220
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 1892
    3⤵
    - Program crash
    PID:1464
- 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:1680
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:3756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2220 -ip 2220
1⤵
PID:3548

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

1cf577b9dd994dc5b1fb65c6529fbb44.xml

Path C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml
Size 1KB
SHA256 8ef8266aeb236c0387489b85ca4ea25481ca1575ec24d94a7458771e1d91177e
MD5 4be752c56909c7493e070314682b2583
SHA1 43f400e45ae141dace48a2647fc1732acb669a97
SHA512 ca4887ffbc436f01ea9c976ee22339f911ba38d02613991209fe4b972f397b91b091c2ead8ec9ac9e40b28a406f095190e33da91ba3db98807bec6eb4027ad71
MD5 SHA1 SHA512

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memory/1192-134-0x00000000006FA000-0x0000000000700000-memory.dmp

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memory/2220-137-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2220-138-0x0000000005140000-0x00000000051DC000-memory.dmp

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memory/2220-139-0x0000000005790000-0x0000000005D34000-memory.dmp

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memory/2220-140-0x0000000005250000-0x00000000052B6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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