matiex | eca3cc09792ccba9c1dfa361cbaac62a0a33b94510b730e81c32b6c0ea3eddeb

General

Target

QUOTATION.exe
Size

562KB
MD5

21fd27bf9ec8cae0d958388319af9556
SHA1

f56d951b083b72300316ea71925868959ebbefb6
SHA256

df9211c8d0cf3b06189f2b29e7704219c3ed996dd21e97ca47f63f8c1f8537da
SHA512

f76da8389181d8bace01cabc1ed9f37b712e52e52eccaddf679d90dec708f19144d84e0eca1e7cbc708286c3db1a69d24fee0302ed498fcb03ab16c49940bd7c

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 1 IoCs

Processes:

resource	yara_rule
behavioral8/memory/2912-141-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 4728 created 2912 4728 WerFault.exe QUOTATION.exe

description	pid	process	target process
PID 4728 created 2912	4728	WerFault.exe	QUOTATION.exe

Drops startup file 2 IoCs

Processes:

Powershell.exe

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

QUOTATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION.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

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

Processes:

QUOTATION.exe

description pid process target process

PID 4212 set thread context of 2912 4212 QUOTATION.exe QUOTATION.exe

flow	ioc
32	checkip.dyndns.org

description	pid	process	target process
PID 4212 set thread context of 2912	4212	QUOTATION.exe	QUOTATION.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1496 2912 WerFault.exe QUOTATION.exe

pid	pid_target	process	target process
1496	2912	WerFault.exe	QUOTATION.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

svchost.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections svchost.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Powershell.exeWerFault.exe

pid process

1864 Powershell.exe
1864 Powershell.exe
1496 WerFault.exe
1496 WerFault.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe

pid	process
1864	Powershell.exe
1864	Powershell.exe
1496	WerFault.exe
1496	WerFault.exe

Suspicious use of AdjustPrivilegeToken 58 IoCs

Processes:

Powershell.exeQUOTATION.exeWerFault.exesvchost.exeTiWorker.exe

description	pid	process
Token: SeDebugPrivilege	1864	Powershell.exe
Token: SeDebugPrivilege	2912	QUOTATION.exe
Token: SeRestorePrivilege	1496	WerFault.exe
Token: SeBackupPrivilege	1496	WerFault.exe
Token: SeShutdownPrivilege	1040	svchost.exe
Token: SeCreatePagefilePrivilege	1040	svchost.exe
Token: SeShutdownPrivilege	1040	svchost.exe
Token: SeCreatePagefilePrivilege	1040	svchost.exe
Token: SeShutdownPrivilege	1040	svchost.exe
Token: SeCreatePagefilePrivilege	1040	svchost.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe
Token: SeBackupPrivilege	4612	TiWorker.exe
Token: SeRestorePrivilege	4612	TiWorker.exe
Token: SeSecurityPrivilege	4612	TiWorker.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

QUOTATION.exeWerFault.exe

description	pid	process	target process
PID 4212 wrote to memory of 1864	4212	QUOTATION.exe	Powershell.exe
PID 4212 wrote to memory of 1864	4212	QUOTATION.exe	Powershell.exe
PID 4212 wrote to memory of 1864	4212	QUOTATION.exe	Powershell.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4212 wrote to memory of 2912	4212	QUOTATION.exe	QUOTATION.exe
PID 4728 wrote to memory of 2912	4728	WerFault.exe	QUOTATION.exe
PID 4728 wrote to memory of 2912	4728	WerFault.exe	QUOTATION.exe

outlook_office_path 1 IoCs

Processes:

QUOTATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION.exe

outlook_win_path 1 IoCs

Processes:

QUOTATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATION.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:4212

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:1864

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 1740
3⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2912 -ip 2912
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4728

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
1⤵
- Modifies data under HKEY_USERS
PID:64

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1040

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/64-152-0x000001AE70790000-0x000001AE707A0000-memory.dmp

Filesize
64KB

Download
memory/64-159-0x000001AE73710000-0x000001AE73714000-memory.dmp

Filesize
16KB

Download
memory/1040-457-0x00000217D1F40000-0x00000217D1F44000-memory.dmp

Filesize
16KB

Download
memory/1864-142-0x0000000004F60000-0x0000000004F82000-memory.dmp

Filesize
136KB

Download
memory/1864-149-0x0000000006450000-0x000000000646A000-memory.dmp

Filesize
104KB

Download
memory/1864-150-0x00000000064A0000-0x00000000064C2000-memory.dmp

Filesize
136KB

Download
memory/1864-136-0x0000000004950000-0x0000000004986000-memory.dmp

Filesize
216KB

Download
memory/1864-137-0x0000000005020000-0x0000000005648000-memory.dmp

Filesize
6.2MB

Download
memory/1864-139-0x00000000049E0000-0x00000000049E1000-memory.dmp

Filesize
4KB

Download
memory/1864-138-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/1864-140-0x00000000049E2000-0x00000000049E3000-memory.dmp

Filesize
4KB

Download
memory/1864-148-0x00000000064D0000-0x0000000006566000-memory.dmp

Filesize
600KB

Download
memory/1864-147-0x0000000005E70000-0x0000000005E8E000-memory.dmp

Filesize
120KB

Download
memory/1864-145-0x0000000005840000-0x00000000058A6000-memory.dmp

Filesize
408KB

Download
memory/2912-144-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/2912-143-0x0000000004FC0000-0x0000000005026000-memory.dmp

Filesize
408KB

Download
memory/2912-146-0x0000000004FC0000-0x0000000005564000-memory.dmp

Filesize
5.6MB

Download
memory/2912-141-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4212-130-0x0000000000510000-0x00000000005A2000-memory.dmp

Filesize
584KB

Download
memory/4212-134-0x00000000051A0000-0x000000000523C000-memory.dmp

Filesize
624KB

Download
memory/4212-135-0x0000000004F60000-0x0000000005504000-memory.dmp

Filesize
5.6MB

Download
memory/4212-151-0x0000000005180000-0x000000000518A000-memory.dmp

Filesize
40KB

Download
memory/4212-133-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/4212-132-0x0000000005000000-0x0000000005092000-memory.dmp

Filesize
584KB

Download
memory/4212-160-0x0000000004F60000-0x0000000005504000-memory.dmp

Filesize
5.6MB

Download
memory/4212-131-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads