matiex | 9dacb6e97f39f81eee74d0779165f4a74e31f27cec1a67d52c541c52ed169d73

Target

g6yzl1NROz6FgZi.exe
Size

1.2MB
MD5

7a8fa3fe4b23a2ca9612b2b1cf096f6a
SHA1

898d020a309d30d33055978794b2131fa5a18698
SHA256

9dacb6e97f39f81eee74d0779165f4a74e31f27cec1a67d52c541c52ed169d73
SHA512

a77912743ed08c7814d6b3a7a3fea19728561f69891c862ea35957ca4886beded2ffea80342af5d9c7b45a8aa868cd8dc9edcc67b62e1b53f25d5c21be407370

Score

10^/10

matiex bootkit keylogger persistence spyware stealer suricata

Malware Config

Extracted

Family

matiex

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 2 IoCs

resource	yara_rule
behavioral1/memory/3764-160-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/3764-167-0x0000000005300000-0x00000000058A6000-memory.dmp	family_matiex

suricata: ET MALWARE Matiex Keylogger Exfil Via Telegram
suricata: ET MALWARE Matiex Keylogger Exfil Via Telegram
suricata
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

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	svchost.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.

flow	ioc
1	checkip.dyndns.org
1	freegeoip.app
18	freegeoip.app

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4536 set thread context of 3764	4536	g6yzl1NROz6FgZi.exe	90

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Local\ConnectedDevicesPlatform\CDPGlobalSettings.cdp	svchost.exe
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Local\ConnectedDevicesPlatform\CDPGlobalSettings.cdp.override	svchost.exe
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Local\ConnectedDevicesPlatform\Connected Devices Platform certificates.sst	svchost.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Modifies data under HKEY_USERS 48 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Uninstall	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Uninstall	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache\7\52C64B7E	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Uninstall	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache\7\52C64B7E	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	sihclient.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3764	g6yzl1NROz6FgZi.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSystemEnvironmentPrivilege	4520	svchost.exe
Token: SeDebugPrivilege	3764	g6yzl1NROz6FgZi.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 4536 wrote to memory of 3764	4536	g6yzl1NROz6FgZi.exe	90
PID 3764 wrote to memory of 1736	3764	g6yzl1NROz6FgZi.exe	91
PID 3764 wrote to memory of 1736	3764	g6yzl1NROz6FgZi.exe	91
PID 3764 wrote to memory of 1736	3764	g6yzl1NROz6FgZi.exe	91
PID 3832 wrote to memory of 3048	3832	svchost.exe	98
PID 3832 wrote to memory of 3048	3832	svchost.exe	98

C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
"C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe
  "C:\Users\Admin\AppData\Local\Temp\g6yzl1NROz6FgZi.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3764
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1736

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k wsappx -p -s ClipSVC
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4520

C:\Windows\system32\MoNotificationUx.exe
%systemroot%\system32\MoNotificationUx.exe /ClearActiveNotifications
1⤵
- Checks processor information in registry
PID:4484

C:\Windows\system32\MoNotificationUx.exe
%systemroot%\system32\MoNotificationUx.exe /ClearActiveNotifications
1⤵
- Checks processor information in registry
PID:3768

C:\Windows\System32\sihclient.exe
C:\Windows\System32\sihclient.exe /cv fxGCPoqzUkqRX7Y2Kt3T4A.0.2
1⤵
- Modifies data under HKEY_USERS
PID:720

C:\Windows\system32\wlrmdr.exe
-c -s 0 -f 0 -t Empty -m Empty -a 0 -u Empty
1⤵
PID:4660

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
1⤵
- Modifies data under HKEY_USERS
PID:668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:2060

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:3608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s PcaSvc
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\System32\pcaui.exe
  C:\Windows\System32\pcaui.exe -n 0 -a "" -v "" -g "" -x ""
  2⤵
  PID:3048

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
PID:1420

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s wscsvc
1⤵
PID:1576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/668-176-0x00000188C7FF0000-0x00000188C7FF4000-memory.dmp

Filesize
16KB

Download
memory/668-175-0x00000188C7BF0000-0x00000188C7C00000-memory.dmp

Filesize
64KB

Download
memory/668-174-0x00000188C7B70000-0x00000188C7B80000-memory.dmp

Filesize
64KB

Download
memory/3764-171-0x0000000007130000-0x0000000007131000-memory.dmp

Filesize
4KB

Download
memory/3764-167-0x0000000005300000-0x00000000058A6000-memory.dmp

Filesize
5.6MB

Download
memory/3764-166-0x00000000053B0000-0x00000000053B1000-memory.dmp

Filesize
4KB

Download
memory/3764-160-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4536-152-0x0000000005A90000-0x0000000005A91000-memory.dmp

Filesize
4KB

Download
memory/4536-158-0x0000000008C60000-0x0000000008D00000-memory.dmp

Filesize
640KB

Download
memory/4536-157-0x0000000006550000-0x00000000065D4000-memory.dmp

Filesize
528KB

Download
memory/4536-156-0x0000000005120000-0x0000000005130000-memory.dmp

Filesize
64KB

Download
memory/4536-155-0x0000000005250000-0x0000000005251000-memory.dmp

Filesize
4KB

Download
memory/4536-154-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/4536-153-0x0000000004F30000-0x00000000054D6000-memory.dmp

Filesize
5.6MB

Download
memory/4536-146-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/4536-151-0x0000000005070000-0x0000000005071000-memory.dmp

Filesize
4KB

Download
memory/4536-150-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

Filesize
4KB

Download
memory/4536-149-0x00000000054E0000-0x00000000054E1000-memory.dmp

Filesize
4KB

Download
memory/4536-148-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download