matiex | bf0fa71205913df440b0553f3c68bcdbb866cc740d64c47729bc60e56b335338

General

Target

3acb899b3a2fa5c7901009f212342098.exe
Size

704KB
MD5

3acb899b3a2fa5c7901009f212342098
SHA1

c5f65bb0c5a0bc89400b4e405b200ba692efe490
SHA256

bf0fa71205913df440b0553f3c68bcdbb866cc740d64c47729bc60e56b335338
SHA512

6ef04dad1215ff26cc90912377bf2c1b4cf89b3b8621e7c1f82170b849f2524a64fa6a3683512941edeaf58272af86741e7610e32045e24463460e3a3b189b50
SSDEEP

12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZWpfc:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pc6

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 3 IoCs

resource	yara_rule
behavioral1/memory/2044-60-0x0000000000400000-0x0000000000482000-memory.dmp	family_matiex
behavioral1/memory/2044-61-0x0000000000490000-0x0000000000502000-memory.dmp	family_matiex
behavioral1/memory/2044-62-0x0000000000490000-0x0000000000502000-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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.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
7	freegeoip.app
8	freegeoip.app
3	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1308 set thread context of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1840	2044	WerFault.exe	30

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
900	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1308	3acb899b3a2fa5c7901009f212342098.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	3acb899b3a2fa5c7901009f212342098.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 1756	1308	3acb899b3a2fa5c7901009f212342098.exe	29
PID 1308 wrote to memory of 1756	1308	3acb899b3a2fa5c7901009f212342098.exe	29
PID 1308 wrote to memory of 1756	1308	3acb899b3a2fa5c7901009f212342098.exe	29
PID 1308 wrote to memory of 1756	1308	3acb899b3a2fa5c7901009f212342098.exe	29
PID 1308 wrote to memory of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30
PID 1308 wrote to memory of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30
PID 1308 wrote to memory of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30
PID 1308 wrote to memory of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30
PID 1308 wrote to memory of 2044	1308	3acb899b3a2fa5c7901009f212342098.exe	30
PID 1756 wrote to memory of 900	1756	cmd.exe	31
PID 1756 wrote to memory of 900	1756	cmd.exe	31
PID 1756 wrote to memory of 900	1756	cmd.exe	31
PID 1756 wrote to memory of 900	1756	cmd.exe	31
PID 2044 wrote to memory of 1840	2044	3acb899b3a2fa5c7901009f212342098.exe	33
PID 2044 wrote to memory of 1840	2044	3acb899b3a2fa5c7901009f212342098.exe	33
PID 2044 wrote to memory of 1840	2044	3acb899b3a2fa5c7901009f212342098.exe	33
PID 2044 wrote to memory of 1840	2044	3acb899b3a2fa5c7901009f212342098.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe

C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe
"C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1308
- 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:1756
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:900
- C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe
  "C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 1684
    3⤵
    - Program crash
    PID:1840

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
766b58e04082802f38c3a53cf10ec996

SHA1
3b7d2fd4ac6880b1e9d2fede6ea29eee6f9bae8a

SHA256
033b9ed9640c97b7fb6f44ddeae6f4c35f4236f8b22e02382536677d008b043e

SHA512
d5ae98403984f8808673d4bb2db519cd7c27a6d4eb710f286d7f5a992b714fc99f38e80e6d49bf38309eea0308d30d14ff3f1be099a81587d8215ca5071224f5

Download Submit
memory/1308-58-0x000000000039A000-0x00000000003A0000-memory.dmp

Filesize
24KB

Download
memory/2044-57-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/2044-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2044-61-0x0000000000490000-0x0000000000502000-memory.dmp

Filesize
456KB

Download
memory/2044-62-0x0000000000490000-0x0000000000502000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads