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

Credentials

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

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/312-189-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

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 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:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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

39 checkip.dyndns.org
41 freegeoip.app
42 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

QUOTATION.exe

description pid process target process

PID 3944 set thread context of 312 3944 QUOTATION.exe RegAsm.exe

flow	ioc
39	checkip.dyndns.org
41	freegeoip.app
42	freegeoip.app

description	pid	process	target process
PID 3944 set thread context of 312	3944	QUOTATION.exe	RegAsm.exe

Drops file in Windows directory 1 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 47 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132889550208379631"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4012"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3872"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.256227"	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Powershell.exeRegAsm.exe

pid process

2872 Powershell.exe
2872 Powershell.exe
312 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Powershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 2872 Powershell.exe
Token: SeDebugPrivilege 312 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

312 RegAsm.exe

pid	process
2872	Powershell.exe
2872	Powershell.exe
312	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2872	Powershell.exe
Token: SeDebugPrivilege	312	RegAsm.exe

pid	process
312	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

QUOTATION.exeRegAsm.exe

description	pid	process	target process
PID 3944 wrote to memory of 2872	3944	QUOTATION.exe	Powershell.exe
PID 3944 wrote to memory of 2872	3944	QUOTATION.exe	Powershell.exe
PID 3944 wrote to memory of 2872	3944	QUOTATION.exe	Powershell.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 3944 wrote to memory of 312	3944	QUOTATION.exe	RegAsm.exe
PID 312 wrote to memory of 1864	312	RegAsm.exe	netsh.exe
PID 312 wrote to memory of 1864	312	RegAsm.exe	netsh.exe
PID 312 wrote to memory of 1864	312	RegAsm.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\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-1-5-21-790714498-1549421491-1643397139-1000\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:3944

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:2872

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:312

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1864

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2148

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1512

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/312-189-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/312-202-0x00000000075D0000-0x0000000007792000-memory.dmp

Filesize
1.8MB

Download
memory/312-198-0x0000000006EC0000-0x0000000006ECA000-memory.dmp

Filesize
40KB

Download
memory/312-192-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/312-191-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/312-190-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/2872-184-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/2872-197-0x0000000008B80000-0x0000000008C16000-memory.dmp

Filesize
600KB

Download
memory/2872-186-0x0000000000CF0000-0x0000000000D40000-memory.dmp

Filesize
320KB

Download
memory/2872-187-0x0000000000CF0000-0x0000000000D40000-memory.dmp

Filesize
320KB

Download
memory/2872-188-0x0000000006D70000-0x0000000007398000-memory.dmp

Filesize
6.2MB

Download
memory/2872-200-0x00000000080B0000-0x00000000080D2000-memory.dmp

Filesize
136KB

Download
memory/2872-199-0x0000000008050000-0x000000000806A000-memory.dmp

Filesize
104KB

Download
memory/2872-185-0x0000000000D90000-0x0000000000DC6000-memory.dmp

Filesize
216KB

Download
memory/2872-196-0x0000000000CF0000-0x0000000000D40000-memory.dmp

Filesize
320KB

Download
memory/2872-193-0x0000000006B30000-0x0000000006B52000-memory.dmp

Filesize
136KB

Download
memory/2872-194-0x0000000007510000-0x0000000007576000-memory.dmp

Filesize
408KB

Download
memory/2872-195-0x0000000007B70000-0x0000000007B8E000-memory.dmp

Filesize
120KB

Download
memory/3944-162-0x00000000051C0000-0x0000000005764000-memory.dmp

Filesize
5.6MB

Download
memory/3944-179-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/3944-180-0x0000000005480000-0x000000000551C000-memory.dmp

Filesize
624KB

Download
memory/3944-132-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/3944-130-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-131-0x0000000000880000-0x000000000090E000-memory.dmp

Filesize
568KB

Download
memory/3944-245-0x00000000051C0000-0x0000000005764000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads