matiex | d3dd7dee8c874b7d1d1d6b5e499dedd7b049d82676213c0a317078a900a78451

General

Target

LlW4ErKRQ3PVoGb.exe
Size

1.1MB
MD5

5e53df92e2abdbc2305049f51140fec6
SHA1

c9a1d423fed180ec73be60ec740bfc0ae9120f82
SHA256

d3dd7dee8c874b7d1d1d6b5e499dedd7b049d82676213c0a317078a900a78451
SHA512

2f038af89c1fc8747e27f5a6675584954e975bf69917ac50526c06eff007c01b404538df3f9f217d1ab8c1d46c6d25b28360d069025d9cee419e931e75601aaf

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

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/4124-142-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

LlW4ErKRQ3PVoGb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	LlW4ErKRQ3PVoGb.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 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

Processes:

LlW4ErKRQ3PVoGb.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	LlW4ErKRQ3PVoGb.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LlW4ErKRQ3PVoGb.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LlW4ErKRQ3PVoGb.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

56 checkip.dyndns.org
58 freegeoip.app
59 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

LlW4ErKRQ3PVoGb.exe

description pid process target process

PID 1344 set thread context of 4124 1344 LlW4ErKRQ3PVoGb.exe LlW4ErKRQ3PVoGb.exe

flow	ioc
56	checkip.dyndns.org
58	freegeoip.app
59	freegeoip.app

description	pid	process	target process
PID 1344 set thread context of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
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
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

3504 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exeLlW4ErKRQ3PVoGb.exe

pid process

4256 powershell.exe
4256 powershell.exe
4124 LlW4ErKRQ3PVoGb.exe

pid	process
3504	schtasks.exe

pid	process
4256	powershell.exe
4256	powershell.exe
4124	LlW4ErKRQ3PVoGb.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

svchost.exeTiWorker.exe

description	pid	process
Token: SeShutdownPrivilege	632	svchost.exe
Token: SeCreatePagefilePrivilege	632	svchost.exe
Token: SeShutdownPrivilege	632	svchost.exe
Token: SeCreatePagefilePrivilege	632	svchost.exe
Token: SeShutdownPrivilege	632	svchost.exe
Token: SeCreatePagefilePrivilege	632	svchost.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe
Token: SeRestorePrivilege	2284	TiWorker.exe
Token: SeSecurityPrivilege	2284	TiWorker.exe
Token: SeBackupPrivilege	2284	TiWorker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LlW4ErKRQ3PVoGb.exe

pid process

4124 LlW4ErKRQ3PVoGb.exe

pid	process
4124	LlW4ErKRQ3PVoGb.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

LlW4ErKRQ3PVoGb.exeLlW4ErKRQ3PVoGb.exe

description	pid	process	target process
PID 1344 wrote to memory of 4256	1344	LlW4ErKRQ3PVoGb.exe	powershell.exe
PID 1344 wrote to memory of 4256	1344	LlW4ErKRQ3PVoGb.exe	powershell.exe
PID 1344 wrote to memory of 4256	1344	LlW4ErKRQ3PVoGb.exe	powershell.exe
PID 1344 wrote to memory of 3504	1344	LlW4ErKRQ3PVoGb.exe	schtasks.exe
PID 1344 wrote to memory of 3504	1344	LlW4ErKRQ3PVoGb.exe	schtasks.exe
PID 1344 wrote to memory of 3504	1344	LlW4ErKRQ3PVoGb.exe	schtasks.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 1344 wrote to memory of 4124	1344	LlW4ErKRQ3PVoGb.exe	LlW4ErKRQ3PVoGb.exe
PID 4124 wrote to memory of 1996	4124	LlW4ErKRQ3PVoGb.exe	netsh.exe
PID 4124 wrote to memory of 1996	4124	LlW4ErKRQ3PVoGb.exe	netsh.exe
PID 4124 wrote to memory of 1996	4124	LlW4ErKRQ3PVoGb.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

LlW4ErKRQ3PVoGb.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	LlW4ErKRQ3PVoGb.exe

outlook_win_path 1 IoCs

Processes:

LlW4ErKRQ3PVoGb.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	LlW4ErKRQ3PVoGb.exe

C:\Users\Admin\AppData\Local\Temp\LlW4ErKRQ3PVoGb.exe
"C:\Users\Admin\AppData\Local\Temp\LlW4ErKRQ3PVoGb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1344

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OTCGvolJkVNKsE.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4256

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OTCGvolJkVNKsE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp621E.tmp"
2⤵
- Creates scheduled task(s)
PID:3504

C:\Users\Admin\AppData\Local\Temp\LlW4ErKRQ3PVoGb.exe
"C:\Users\Admin\AppData\Local\Temp\LlW4ErKRQ3PVoGb.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4124

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1996

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:632

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:2284

Network

MITRE ATT&CK Enterprise 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

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp621E.tmp
MD5
f9b13ac7710fe7ec55af5b49742dd2e2

SHA1
f4d6fd880af643391d98a32a4f31d4d11c72070e

SHA256
3b5fef01461789ed5b3307771b6f2db4c28d4ce882ad560229fb037a3ba8ee7f

SHA512
9fa7044d5d0f402ea7dc4eb95275f40848c6144acf59f974556e77251405e48c783669524fecff0d06f6d6a2d8653d1bd4c9ba2105236ad0e084d13f0a964b26

Download Submit
memory/632-136-0x000001AF559A0000-0x000001AF559B0000-memory.dmp

Filesize
64KB

Download
memory/632-137-0x000001AF56020000-0x000001AF56030000-memory.dmp

Filesize
64KB

Download
memory/632-138-0x000001AF58720000-0x000001AF58724000-memory.dmp

Filesize
16KB

Download
memory/1344-131-0x0000000000D10000-0x0000000000E30000-memory.dmp

Filesize
1.1MB

Download
memory/1344-132-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/1344-133-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/1344-134-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/1344-135-0x00000000057D0000-0x00000000057DA000-memory.dmp

Filesize
40KB

Download
memory/1344-139-0x0000000007BF0000-0x0000000007C8C000-memory.dmp

Filesize
624KB

Download
memory/1344-130-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/4124-148-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/4124-147-0x0000000004F70000-0x0000000004FD6000-memory.dmp

Filesize
408KB

Download
memory/4124-142-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4124-154-0x0000000006C60000-0x0000000006E22000-memory.dmp

Filesize
1.8MB

Download
memory/4124-151-0x0000000005130000-0x0000000005131000-memory.dmp

Filesize
4KB

Download
memory/4256-140-0x0000000005180000-0x00000000051B6000-memory.dmp

Filesize
216KB

Download
memory/4256-155-0x0000000006D20000-0x0000000006D52000-memory.dmp

Filesize
200KB

Download
memory/4256-143-0x00000000058D0000-0x0000000005EF8000-memory.dmp

Filesize
6.2MB

Download
memory/4256-149-0x0000000005890000-0x00000000058B2000-memory.dmp

Filesize
136KB

Download
memory/4256-150-0x00000000060A0000-0x0000000006106000-memory.dmp

Filesize
408KB

Download
memory/4256-144-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/4256-152-0x0000000006760000-0x000000000677E000-memory.dmp

Filesize
120KB

Download
memory/4256-153-0x0000000005295000-0x0000000005297000-memory.dmp

Filesize
8KB

Download
memory/4256-145-0x0000000005290000-0x0000000005291000-memory.dmp

Filesize
4KB

Download
memory/4256-146-0x0000000005292000-0x0000000005293000-memory.dmp

Filesize
4KB

Download
memory/4256-156-0x000000006FEC0000-0x000000006FF0C000-memory.dmp

Filesize
304KB

Download
memory/4256-157-0x0000000006CF0000-0x0000000006D0E000-memory.dmp

Filesize
120KB

Download
memory/4256-158-0x000000007F580000-0x000000007F581000-memory.dmp

Filesize
4KB

Download
memory/4256-159-0x00000000080C0000-0x000000000873A000-memory.dmp

Filesize
6.5MB

Download
memory/4256-160-0x0000000007A70000-0x0000000007A8A000-memory.dmp

Filesize
104KB

Download
memory/4256-161-0x0000000007AE0000-0x0000000007AEA000-memory.dmp

Filesize
40KB

Download
memory/4256-162-0x0000000007CF0000-0x0000000007D86000-memory.dmp

Filesize
600KB

Download
memory/4256-163-0x0000000007CA0000-0x0000000007CAE000-memory.dmp

Filesize
56KB

Download
memory/4256-164-0x0000000007DB0000-0x0000000007DCA000-memory.dmp

Filesize
104KB

Download
memory/4256-165-0x0000000007D90000-0x0000000007D98000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads