matiex | 304fe28472a190be87a8ba280d25c15462adbe87dd31f60ce094fb01e2edbeb5

General

Target
67f1c7ac6d42dbef538d693299efe53f.exe
Size 576KB
Sample230211-kqdyhsbb61
SHA256 304fe28472a190be87a8ba280d25c15462adbe87dd31f60ce094fb01e2edbeb5
MD5 67f1c7ac6d42dbef538d693299efe53f
SHA1 3f50db5ab472e4b3c26bbd29f8d0ca263aa2d206
SHA512 986e01b9dbad0c9814681d1eb724d2dac2493da1a1d36513f32d8c72c8207f34e0618186526a13bd4bed75f6981ed29fbf97a39e599592050064e82d65dc7438
SSDEEP 12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZo:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pc5
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/3036-137-0x0000000000400000-0x0000000000482000-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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67f1c7ac6d42dbef538d693299efe53f.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67f1c7ac6d42dbef538d693299efe53f.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67f1c7ac6d42dbef538d693299efe53f.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
10	freegeoip.app
5	checkip.dyndns.org
9	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 904 set thread context of 3036	904	67f1c7ac6d42dbef538d693299efe53f.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2896	3036	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
2296	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
904	67f1c7ac6d42dbef538d693299efe53f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	67f1c7ac6d42dbef538d693299efe53f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 2892	904	67f1c7ac6d42dbef538d693299efe53f.exe	79
PID 904 wrote to memory of 2892	904	67f1c7ac6d42dbef538d693299efe53f.exe	79
PID 904 wrote to memory of 2892	904	67f1c7ac6d42dbef538d693299efe53f.exe	79
PID 904 wrote to memory of 3036	904	67f1c7ac6d42dbef538d693299efe53f.exe	80
PID 904 wrote to memory of 3036	904	67f1c7ac6d42dbef538d693299efe53f.exe	80
PID 904 wrote to memory of 3036	904	67f1c7ac6d42dbef538d693299efe53f.exe	80
PID 904 wrote to memory of 3036	904	67f1c7ac6d42dbef538d693299efe53f.exe	80
PID 2892 wrote to memory of 2296	2892	cmd.exe	81
PID 2892 wrote to memory of 2296	2892	cmd.exe	81
PID 2892 wrote to memory of 2296	2892	cmd.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67f1c7ac6d42dbef538d693299efe53f.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67f1c7ac6d42dbef538d693299efe53f.exe

C:\Users\Admin\AppData\Local\Temp\67f1c7ac6d42dbef538d693299efe53f.exe
"C:\Users\Admin\AppData\Local\Temp\67f1c7ac6d42dbef538d693299efe53f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:904
- 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:2892
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:2296
- C:\Users\Admin\AppData\Local\Temp\67f1c7ac6d42dbef538d693299efe53f.exe
  "C:\Users\Admin\AppData\Local\Temp\67f1c7ac6d42dbef538d693299efe53f.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 1900
    3⤵
    - Program crash
    PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3036 -ip 3036
1⤵
PID:1520

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 68052979b38f028b24e466114471d2d49568b83a9a7f051a82a72c5ca4e8c01c
MD5 2feaac3555165aa7b76fabc3984fe19b
SHA1 76710b1b204309f4d057eba17bba71b7444f52af
SHA512 81cf57a2ad53f9eaf9a21799dc87e7846a1669a370e05597f58ffb87a91f8f38814375e675880a6d9cdb5bb667d47cb875e6fb471d9a9b143f81a83e6f5b6739
MD5 SHA1 SHA512

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memory/904-135-0x0000000000EFB000-0x0000000000F00000-memory.dmp

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memory/3036-137-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3036-138-0x0000000005050000-0x00000000050EC000-memory.dmp

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memory/3036-139-0x00000000056A0000-0x0000000005C44000-memory.dmp

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memory/3036-140-0x0000000005160000-0x00000000051C6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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