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 1 IoCs

resource	yara_rule
behavioral2/memory/524-140-0x0000000000400000-0x0000000000482000-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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 524	4476	3acb899b3a2fa5c7901009f212342098.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
800	524	WerFault.exe	85

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
1636	schtasks.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4204	3acb899b3a2fa5c7901009f212342098.exe
4476	3acb899b3a2fa5c7901009f212342098.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	524	3acb899b3a2fa5c7901009f212342098.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 1108	4204	3acb899b3a2fa5c7901009f212342098.exe	81
PID 4204 wrote to memory of 1108	4204	3acb899b3a2fa5c7901009f212342098.exe	81
PID 4204 wrote to memory of 1108	4204	3acb899b3a2fa5c7901009f212342098.exe	81
PID 4204 wrote to memory of 4852	4204	3acb899b3a2fa5c7901009f212342098.exe	82
PID 4204 wrote to memory of 4852	4204	3acb899b3a2fa5c7901009f212342098.exe	82
PID 4204 wrote to memory of 4852	4204	3acb899b3a2fa5c7901009f212342098.exe	82
PID 1108 wrote to memory of 1636	1108	cmd.exe	83
PID 1108 wrote to memory of 1636	1108	cmd.exe	83
PID 1108 wrote to memory of 1636	1108	cmd.exe	83
PID 4204 wrote to memory of 4476	4204	3acb899b3a2fa5c7901009f212342098.exe	84
PID 4204 wrote to memory of 4476	4204	3acb899b3a2fa5c7901009f212342098.exe	84
PID 4204 wrote to memory of 4476	4204	3acb899b3a2fa5c7901009f212342098.exe	84
PID 4476 wrote to memory of 524	4476	3acb899b3a2fa5c7901009f212342098.exe	85
PID 4476 wrote to memory of 524	4476	3acb899b3a2fa5c7901009f212342098.exe	85
PID 4476 wrote to memory of 524	4476	3acb899b3a2fa5c7901009f212342098.exe	85
PID 4476 wrote to memory of 524	4476	3acb899b3a2fa5c7901009f212342098.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3acb899b3a2fa5c7901009f212342098.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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 behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4204
- 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:1108
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:1636
- C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe
  "C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"
  2⤵
  PID:4852
- C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe
  "C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4476
- - C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe
    "C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:524
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 1636
      4⤵
      Program crash
      PID:800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 524 -ip 524
1⤵
PID:3044

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
55dde6d4d97c64cba35b6d2c78a6508c

SHA1
673a780e4cc091904388404eae441cad1f55366f

SHA256
708bb85d40fd6c5d3b70c6c6c36a13f03a16d4accedecf5acee6da60a1afead5

SHA512
582adf57f1195087aee4e2d50281a3444d2b85930340a441a0a829e2f6aefa41acce5dbf9d05ab43c0395018d859f22e084ac8a1ae6ffd2a9154b8884c4223ab

Download Submit
memory/524-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/524-141-0x0000000005770000-0x000000000580C000-memory.dmp

Filesize
624KB

Download
memory/524-142-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/524-143-0x0000000005810000-0x0000000005876000-memory.dmp

Filesize
408KB

Download
memory/4204-136-0x0000000000CFA000-0x0000000000D00000-memory.dmp

Filesize
24KB

Download
memory/4476-139-0x0000000000F3A000-0x0000000000F40000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads