matiex | 2c6ab55eeb9c6860e323d83db778de04484ecca9e44766078985e8ed9e5fd42e

General

Target

QUOTATION.exe
Size

539KB
MD5

46f606d353f874f3a7d331919337fa4e
SHA1

e4cd9db1f7ab39819591392d9ed49e24116e31f0
SHA256

96419e24a139be22003f18188eb9d4eac5fb5b8372dd055509365d0d6e4665d4
SHA512

e7f0a08d29e958705d9b6f0b4e5a4e9732df001292d95155aa6e5a457bb30e76b4b2c244e77d2ed79e83df8f65fe2785a218cc532cd04f41fb9693606a70a207

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
MARYolanmauluogwo@ever

Signatures

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

Matiex Main Payload 4 IoCs

Processes:

resource	yara_rule
behavioral7/memory/1120-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1120-65-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1120-66-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1120-68-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe	Powershell.exe

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:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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.

Processes:

flow ioc

4 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

QUOTATION.exe

description pid process target process

PID 880 set thread context of 1120 880 QUOTATION.exe RegAsm.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1172 1120 WerFault.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Powershell.exeWerFault.exe

pid process

1328 Powershell.exe
1172 WerFault.exe
1172 WerFault.exe
1172 WerFault.exe
1172 WerFault.exe
1172 WerFault.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RegAsm.exePowershell.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 1120 RegAsm.exe
Token: SeDebugPrivilege 1328 Powershell.exe
Token: SeDebugPrivilege 1172 WerFault.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 880 set thread context of 1120	880	QUOTATION.exe	RegAsm.exe

pid	pid_target	process	target process
1172	1120	WerFault.exe	RegAsm.exe

pid	process
1328	Powershell.exe
1172	WerFault.exe
1172	WerFault.exe
1172	WerFault.exe
1172	WerFault.exe
1172	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1120	RegAsm.exe
Token: SeDebugPrivilege	1328	Powershell.exe
Token: SeDebugPrivilege	1172	WerFault.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

QUOTATION.exeRegAsm.exe

description	pid	process	target process
PID 880 wrote to memory of 1328	880	QUOTATION.exe	Powershell.exe
PID 880 wrote to memory of 1328	880	QUOTATION.exe	Powershell.exe
PID 880 wrote to memory of 1328	880	QUOTATION.exe	Powershell.exe
PID 880 wrote to memory of 1328	880	QUOTATION.exe	Powershell.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 880 wrote to memory of 1120	880	QUOTATION.exe	RegAsm.exe
PID 1120 wrote to memory of 1172	1120	RegAsm.exe	WerFault.exe
PID 1120 wrote to memory of 1172	1120	RegAsm.exe	WerFault.exe
PID 1120 wrote to memory of 1172	1120	RegAsm.exe	WerFault.exe
PID 1120 wrote to memory of 1172	1120	RegAsm.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1328

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 1348
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/880-55-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/880-56-0x00000000012D0000-0x000000000135E000-memory.dmp

Filesize
568KB

Download
memory/880-57-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/880-58-0x00000000049A0000-0x00000000049A1000-memory.dmp

Filesize
4KB

Download
memory/880-59-0x0000000000A20000-0x0000000000AA8000-memory.dmp

Filesize
544KB

Download
memory/880-61-0x0000000000610000-0x0000000000626000-memory.dmp

Filesize
88KB

Download
memory/880-77-0x00000000049A5000-0x00000000049B6000-memory.dmp

Filesize
68KB

Download
memory/1120-66-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1120-64-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1120-65-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1120-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1120-68-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1120-69-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/1120-72-0x0000000005890000-0x0000000005891000-memory.dmp

Filesize
4KB

Download
memory/1120-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1172-76-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1328-71-0x0000000001EE0000-0x0000000001EE1000-memory.dmp

Filesize
4KB

Download
memory/1328-70-0x00000000700C0000-0x000000007066B000-memory.dmp

Filesize
5.7MB

Download
memory/1328-73-0x0000000001EE1000-0x0000000001EE2000-memory.dmp

Filesize
4KB

Download
memory/1328-74-0x0000000001EE2000-0x0000000001EE4000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads