matiex | 21e5e0c004b3cba4cfbfdd135abcab0beeea6159ce5884d19406945ce38e9670

General

Target

b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
Size

608KB
MD5

4622942793ebac6a734337176a346809
SHA1

5c7c0cceb1d1ecdd052e29a9e6a46e4ea3cfb282
SHA256

b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c
SHA512

a7164f6a8b9d555efd12bebb3801834c539c73090fdc0cfc436c4b0a53a324169af9b8ba21bb7e2b81698e14ea92da5d0fe477563a323ebeaced40a1870392a6
SSDEEP

12288:YqoOQ5sHbNuZpA/uOr3YZnQlRZDynctXm2sThT6ycNYn:X1Q4oZpA2Or3YuyctW2K6Fm

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
ze5qw@iC?1E}

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/3784-138-0x0000000000400000-0x0000000000470000-memory.dmp	family_matiex

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.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
26	checkip.dyndns.org
28	freegeoip.app
29	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1556 set thread context of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
Token: SeDebugPrivilege	3784	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87
PID 1556 wrote to memory of 3784	1556	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe

C:\Users\Admin\AppData\Local\Temp\b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
"C:\Users\Admin\AppData\Local\Temp\b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Users\Admin\AppData\Local\Temp\b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe
  "C:\Users\Admin\AppData\Local\Temp\b9713bbd42cc46a3c53e391a5e0925968b5b335205a02866fb4edeb2b337226c.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1556-132-0x00000000000F0000-0x0000000000188000-memory.dmp

Filesize
608KB

Download
memory/1556-133-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/1556-134-0x0000000004A40000-0x0000000004AD2000-memory.dmp

Filesize
584KB

Download
memory/1556-135-0x00000000049F0000-0x00000000049FA000-memory.dmp

Filesize
40KB

Download
memory/1556-136-0x0000000004E20000-0x0000000004EBC000-memory.dmp

Filesize
624KB

Download
memory/3784-138-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/3784-139-0x00000000055C0000-0x0000000005626000-memory.dmp

Filesize
408KB

Download
memory/3784-140-0x0000000006E50000-0x0000000007012000-memory.dmp

Filesize
1.8MB

Download

Analysis

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