matiex | bc31fc4bea86c69967c99b00e5e465c27c4712fcc2a7ea737a1d449185e84a28

General

Target

004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
Size

545KB
MD5

77622db39954d9de5f409d926e2291f4
SHA1

ee96a88632770b165839da16b83210a091ca5ccb
SHA256

4a40496f800e2a11c1e2a12176d062b59fe536f18fb236f98e66231448aaa2e8
SHA512

a1ce28d8f6f3005b679f6969f512aac8d6e3e0e21b632763094fc679b62ef67e7e6b50de111c48bb2293d995559744c1cc771a11445572084a2bfa18f34cd188

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
srvc13.turhost.com
Port:
587
Username:
[email protected]
Password:
italik2015

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3232-133-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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.

Processes:

flow ioc

44 checkip.dyndns.org
46 freegeoip.app
47 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

004797508E2-20F2-4C2C-879A-1C358609BA01d.exe

description pid process target process

PID 520 set thread context of 3232 520 004797508E2-20F2-4C2C-879A-1C358609BA01d.exe MSBuild.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1468 3232 WerFault.exe MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

004797508E2-20F2-4C2C-879A-1C358609BA01d.exe

pid process

520 004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 3232 MSBuild.exe

flow	ioc
44	checkip.dyndns.org
46	freegeoip.app
47	freegeoip.app

description	pid	process	target process
PID 520 set thread context of 3232	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	MSBuild.exe

pid	pid_target	process	target process
1468	3232	WerFault.exe	MSBuild.exe

pid	process
520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe

description	pid	process
Token: SeDebugPrivilege	3232	MSBuild.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

004797508E2-20F2-4C2C-879A-1C358609BA01d.exe

description	pid	process	target process
PID 520 wrote to memory of 3656	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	cmd.exe
PID 520 wrote to memory of 3656	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	cmd.exe
PID 520 wrote to memory of 3656	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	cmd.exe
PID 520 wrote to memory of 3232	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	MSBuild.exe
PID 520 wrote to memory of 3232	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	MSBuild.exe
PID 520 wrote to memory of 3232	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	MSBuild.exe
PID 520 wrote to memory of 3232	520	004797508E2-20F2-4C2C-879A-1C358609BA01d.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:520
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:3656
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3232 -s 1996
    3⤵
    - Program crash
    PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3232 -ip 3232
1⤵
PID:4736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/520-131-0x00000000010FD000-0x0000000001100000-memory.dmp

Filesize
12KB

Download
memory/3232-132-0x0000000000000000-mapping.dmp

Download
memory/3232-133-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/3232-134-0x0000000005470000-0x000000000550C000-memory.dmp

Filesize
624KB

Download
memory/3232-135-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download
memory/3232-136-0x00000000055D0000-0x0000000005636000-memory.dmp

Filesize
408KB

Download
memory/3656-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads