matiex | d8924e2835e52e70b5c4fa4fa0a91e9b06776f778d065d62773a4564586d486c

General

Target

b4fd099f95248286fb005d5fc93399d9.exe
Size

477KB
MD5

b4fd099f95248286fb005d5fc93399d9
SHA1

4fca12d0d25a2115b5958de3aa9830f36361fbbb
SHA256

d8924e2835e52e70b5c4fa4fa0a91e9b06776f778d065d62773a4564586d486c
SHA512

05c742c18b03adb4153f1f921311f4aaba01ddc04cd329a8079bd9b56db46ab45cfae32c7a88db3becde49f76859a6c24452fa6dbd1c1738bb0d59e8aa45f2ef

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1474029845:AAESF02q0JZytndFFaKINAGOHrylDk8NpJA/sendMessage?chat_id=1481651786

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
behavioral1/memory/1824-62-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1824-63-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1824-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1824-65-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b4fd099f95248286fb005d5fc93399d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4fd099f95248286fb005d5fc93399d9.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:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.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

4 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b4fd099f95248286fb005d5fc93399d9.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description pid process target process

PID 1100 set thread context of 1824 1100 b4fd099f95248286fb005d5fc93399d9.exe b4fd099f95248286fb005d5fc93399d9.exe

description	pid	process	target process
PID 1100 set thread context of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

pid	process
1100	b4fd099f95248286fb005d5fc93399d9.exe
1100	b4fd099f95248286fb005d5fc93399d9.exe
1100	b4fd099f95248286fb005d5fc93399d9.exe
1100	b4fd099f95248286fb005d5fc93399d9.exe
1100	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe
1824	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

description pid process

Token: SeDebugPrivilege 1100 b4fd099f95248286fb005d5fc93399d9.exe
Token: SeDebugPrivilege 1824 b4fd099f95248286fb005d5fc93399d9.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

pid process

1824 b4fd099f95248286fb005d5fc93399d9.exe

description	pid	process
Token: SeDebugPrivilege	1100	b4fd099f95248286fb005d5fc93399d9.exe
Token: SeDebugPrivilege	1824	b4fd099f95248286fb005d5fc93399d9.exe

pid	process
1824	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

outlook_office_path 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.exe

outlook_win_path 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.exe

C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe
"C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100

C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe
"{path}"
2⤵
PID:692

C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe
"{path}"
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:1824

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1100-54-0x0000000000290000-0x0000000000312000-memory.dmp

Filesize
520KB

Download
memory/1100-55-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1100-56-0x0000000000650000-0x00000000006BC000-memory.dmp

Filesize
432KB

Download
memory/1100-57-0x0000000004C60000-0x0000000004C61000-memory.dmp

Filesize
4KB

Download
memory/1100-58-0x0000000000270000-0x000000000028C000-memory.dmp

Filesize
112KB

Download
memory/1100-59-0x0000000006780000-0x0000000006820000-memory.dmp

Filesize
640KB

Download
memory/1724-68-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

Filesize
8KB

Download
memory/1824-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-60-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-64-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-65-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-67-0x00000000055E0000-0x00000000055E1000-memory.dmp

Filesize
4KB

Download
memory/1824-66-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1824-61-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1824-69-0x00000000055E5000-0x00000000055F6000-memory.dmp

Filesize
68KB

Download

description	pid	process	target process
PID 1100 wrote to memory of 692	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 692	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 692	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 692	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1100 wrote to memory of 1824	1100	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 1824 wrote to memory of 1724	1824	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe
PID 1824 wrote to memory of 1724	1824	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe
PID 1824 wrote to memory of 1724	1824	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe
PID 1824 wrote to memory of 1724	1824	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads