matiex | 4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c

General

Target

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Size

565KB
MD5

c3441e021209654ea6f7531d8687bd22
SHA1

d9f937cefb85f12bca3822ecf118ac824fcec0bc
SHA256

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c
SHA512

dbf464ece49417fb830e4716ec0e6e9b029a1ca0067c796b6440ff551e91f7f4a6013a77b7611f7f860da13b9f90f6b9a19f1d43b6b216634c26b33fc0b759f0

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
srvc13.turhost.com
Port:
587
Username:
[email protected]
Password:
italik2015

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/576-62-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/576-63-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/576-65-0x000000000046DE2E-mapping.dmp	family_matiex
behavioral1/memory/576-64-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/576-67-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/576-69-0x0000000000400000-0x0000000000472000-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:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.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:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.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:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	pid	process	target process
PID 1444 set thread context of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

860 576 WerFault.exe 4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description pid process

Token: SeDebugPrivilege 576 4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

pid	pid_target	process	target process
860	576	WerFault.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	pid	process
Token: SeDebugPrivilege	576	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	pid	process	target process
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 1444 wrote to memory of 576	1444	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
PID 576 wrote to memory of 860	576	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	WerFault.exe
PID 576 wrote to memory of 860	576	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	WerFault.exe
PID 576 wrote to memory of 860	576	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	WerFault.exe
PID 576 wrote to memory of 860	576	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

outlook_win_path 1 IoCs

Processes:

4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe

C:\Users\Admin\AppData\Local\Temp\4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
"C:\Users\Admin\AppData\Local\Temp\4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1444

C:\Users\Admin\AppData\Local\Temp\4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe
"C:\Users\Admin\AppData\Local\Temp\4fbdcc44a7aeee9738c67a3bc33217250d77b2c87125e2f592a55475de66762c.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 576 -s 1772
3⤵
- Program crash
PID:860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/576-65-0x000000000046DE2E-mapping.dmp

Download
memory/576-63-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-69-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-67-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-62-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-59-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-64-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/576-60-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/860-71-0x0000000000000000-mapping.dmp

Download
memory/1444-55-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/1444-54-0x00000000000B0000-0x0000000000142000-memory.dmp

Filesize
584KB

Download
memory/1444-58-0x00000000058C0000-0x0000000005936000-memory.dmp

Filesize
472KB

Download
memory/1444-57-0x0000000004C80000-0x0000000004CE8000-memory.dmp

Filesize
416KB

Download
memory/1444-56-0x0000000004F00000-0x0000000004F0A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads