matiex | beaff19d4901abc6bf50871a2514a1efb985edb39b64786adeab9259839038e7

General

Target

5ab6117ef6b9607c962f102518ab534b.exe
Size

558KB
MD5

5ab6117ef6b9607c962f102518ab534b
SHA1

e37e0327403eeb95e5df462689d6b83f2d9e3d9a
SHA256

beaff19d4901abc6bf50871a2514a1efb985edb39b64786adeab9259839038e7
SHA512

ad7120ebf1ea9fe92266b400c0983c82a5e0a858ba3662290a8fcfa41d712bc38dad4fc7dc393a1c1c6ea34cb2c8e8bfb4efe0333a5c3c3acb9378838f391eb9
SSDEEP

12288:P9SS0V7xIyeP9I1mKpDPhe950yvCfXU2euRrAMIWmA0lq:1SS0VCFI1n9EnCMB0rpGV

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

Processes:

resource	yara_rule
behavioral2/memory/5080-138-0x0000000000400000-0x0000000000483000-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

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5ab6117ef6b9607c962f102518ab534b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5ab6117ef6b9607c962f102518ab534b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5ab6117ef6b9607c962f102518ab534b.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

5 checkip.dyndns.org
7 freegeoip.app
8 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

description pid process target process

PID 3204 set thread context of 5080 3204 5ab6117ef6b9607c962f102518ab534b.exe 5ab6117ef6b9607c962f102518ab534b.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4188 5080 WerFault.exe 5ab6117ef6b9607c962f102518ab534b.exe
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

Processes:

schtasks.exe

pid process

1892 schtasks.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

pid process

3204 5ab6117ef6b9607c962f102518ab534b.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

description pid process

Token: SeDebugPrivilege 5080 5ab6117ef6b9607c962f102518ab534b.exe

flow	ioc
5	checkip.dyndns.org
7	freegeoip.app
8	freegeoip.app

description	pid	process	target process
PID 3204 set thread context of 5080	3204	5ab6117ef6b9607c962f102518ab534b.exe	5ab6117ef6b9607c962f102518ab534b.exe

pid	pid_target	process	target process
4188	5080	WerFault.exe	5ab6117ef6b9607c962f102518ab534b.exe

pid	process
1892	schtasks.exe

pid	process
3204	5ab6117ef6b9607c962f102518ab534b.exe

description	pid	process
Token: SeDebugPrivilege	5080	5ab6117ef6b9607c962f102518ab534b.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.execmd.exe

description	pid	process	target process
PID 3204 wrote to memory of 4436	3204	5ab6117ef6b9607c962f102518ab534b.exe	cmd.exe
PID 3204 wrote to memory of 4436	3204	5ab6117ef6b9607c962f102518ab534b.exe	cmd.exe
PID 3204 wrote to memory of 4436	3204	5ab6117ef6b9607c962f102518ab534b.exe	cmd.exe
PID 3204 wrote to memory of 5080	3204	5ab6117ef6b9607c962f102518ab534b.exe	5ab6117ef6b9607c962f102518ab534b.exe
PID 3204 wrote to memory of 5080	3204	5ab6117ef6b9607c962f102518ab534b.exe	5ab6117ef6b9607c962f102518ab534b.exe
PID 3204 wrote to memory of 5080	3204	5ab6117ef6b9607c962f102518ab534b.exe	5ab6117ef6b9607c962f102518ab534b.exe
PID 3204 wrote to memory of 5080	3204	5ab6117ef6b9607c962f102518ab534b.exe	5ab6117ef6b9607c962f102518ab534b.exe
PID 4436 wrote to memory of 1892	4436	cmd.exe	schtasks.exe
PID 4436 wrote to memory of 1892	4436	cmd.exe	schtasks.exe
PID 4436 wrote to memory of 1892	4436	cmd.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5ab6117ef6b9607c962f102518ab534b.exe

outlook_win_path 1 IoCs

Processes:

5ab6117ef6b9607c962f102518ab534b.exe

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	5ab6117ef6b9607c962f102518ab534b.exe

C:\Users\Admin\AppData\Local\Temp\5ab6117ef6b9607c962f102518ab534b.exe
"C:\Users\Admin\AppData\Local\Temp\5ab6117ef6b9607c962f102518ab534b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3204

C:\Windows\SysWOW64\cmd.exe
cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\d4c79d78a33a481894964ddfeeee395c.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:4436

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\d4c79d78a33a481894964ddfeeee395c.xml"
3⤵
- Creates scheduled task(s)
PID:1892

C:\Users\Admin\AppData\Local\Temp\5ab6117ef6b9607c962f102518ab534b.exe
"C:\Users\Admin\AppData\Local\Temp\5ab6117ef6b9607c962f102518ab534b.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 2612
3⤵
- Program crash
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5080 -ip 5080
1⤵
PID:5048

Network

MITRE ATT&CK Matrix ATT&CK 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

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\d4c79d78a33a481894964ddfeeee395c.xml
Filesize
1KB

MD5
2feaac3555165aa7b76fabc3984fe19b

SHA1
76710b1b204309f4d057eba17bba71b7444f52af

SHA256
68052979b38f028b24e466114471d2d49568b83a9a7f051a82a72c5ca4e8c01c

SHA512
81cf57a2ad53f9eaf9a21799dc87e7846a1669a370e05597f58ffb87a91f8f38814375e675880a6d9cdb5bb667d47cb875e6fb471d9a9b143f81a83e6f5b6739

Download Submit
memory/1892-135-0x0000000000000000-mapping.dmp

Download
memory/3204-132-0x00000000005BB000-0x00000000005C0000-memory.dmp

Filesize
20KB

Download
memory/3204-136-0x00000000005BB000-0x00000000005C0000-memory.dmp

Filesize
20KB

Download
memory/4436-133-0x0000000000000000-mapping.dmp

Download
memory/5080-134-0x0000000000000000-mapping.dmp

Download
memory/5080-138-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/5080-139-0x0000000005480000-0x000000000551C000-memory.dmp

Filesize
624KB

Download
memory/5080-140-0x0000000005520000-0x0000000005586000-memory.dmp

Filesize
408KB

Download
memory/5080-141-0x0000000006930000-0x0000000006ED4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads