matiex | 1f7d006c51d203f691d67a56b1f3b7cd80d33e96b36b359d48cdd837d281fc93

General

Target

MxELZ3saa9aQNufK.exe
Size

617KB
MD5

035d33a4798c4baca26c4e1c29730004
SHA1

105c51e37e962271334462f1bd440f8e4e3ad9ee
SHA256

8d87d1e973d1ee16d747824541196d5df60298f4a8b0e24cf0ad684bb69b779c
SHA512

f612ef1c177658827ed18ea2629dacff9188efbb413b4d883421deb76f625fbc44b23f2aefecd9527ff5c8f3e7513da3b9b5ed687f2914a3777679849917a583
SSDEEP

12288:shPg0W3O7y3G369OUyYUf9Q83zlQRFtwi2YLqwzdkbRNSHxSrSlrTSW90FxG0ol:NOeW36FKv3+R3yb

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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/472-23-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/472-20-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/472-18-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/472-15-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/472-14-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

MxELZ3saa9aQNufK.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions MxELZ3saa9aQNufK.exe
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

MxELZ3saa9aQNufK.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools MxELZ3saa9aQNufK.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	MxELZ3saa9aQNufK.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	MxELZ3saa9aQNufK.exe

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:

MxELZ3saa9aQNufK.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	MxELZ3saa9aQNufK.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	MxELZ3saa9aQNufK.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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MxELZ3saa9aQNufK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MxELZ3saa9aQNufK.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MxELZ3saa9aQNufK.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MxELZ3saa9aQNufK.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
9 freegeoip.app
10 freegeoip.app

flow	ioc
4	checkip.dyndns.org
9	freegeoip.app
10	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:

MxELZ3saa9aQNufK.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	MxELZ3saa9aQNufK.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	MxELZ3saa9aQNufK.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

MxELZ3saa9aQNufK.exe

description pid process target process

PID 1640 set thread context of 472 1640 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1644 472 WerFault.exe MxELZ3saa9aQNufK.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MxELZ3saa9aQNufK.exe

pid process

1640 MxELZ3saa9aQNufK.exe
1640 MxELZ3saa9aQNufK.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MxELZ3saa9aQNufK.exeMxELZ3saa9aQNufK.exe

description pid process

Token: SeDebugPrivilege 1640 MxELZ3saa9aQNufK.exe
Token: SeDebugPrivilege 472 MxELZ3saa9aQNufK.exe

description	pid	process	target process
PID 1640 set thread context of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe

pid	pid_target	process	target process
1644	472	WerFault.exe	MxELZ3saa9aQNufK.exe

pid	process
1640	MxELZ3saa9aQNufK.exe
1640	MxELZ3saa9aQNufK.exe

description	pid	process
Token: SeDebugPrivilege	1640	MxELZ3saa9aQNufK.exe
Token: SeDebugPrivilege	472	MxELZ3saa9aQNufK.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

MxELZ3saa9aQNufK.exeMxELZ3saa9aQNufK.exe

description	pid	process	target process
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 1640 wrote to memory of 472	1640	MxELZ3saa9aQNufK.exe	MxELZ3saa9aQNufK.exe
PID 472 wrote to memory of 1644	472	MxELZ3saa9aQNufK.exe	WerFault.exe
PID 472 wrote to memory of 1644	472	MxELZ3saa9aQNufK.exe	WerFault.exe
PID 472 wrote to memory of 1644	472	MxELZ3saa9aQNufK.exe	WerFault.exe
PID 472 wrote to memory of 1644	472	MxELZ3saa9aQNufK.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

MxELZ3saa9aQNufK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MxELZ3saa9aQNufK.exe

outlook_win_path 1 IoCs

Processes:

MxELZ3saa9aQNufK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MxELZ3saa9aQNufK.exe

C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe
"C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- 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:1640

C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe
"C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 472 -s 1252
3⤵
- Program crash
PID:1644

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

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

Resource Development

Reconnaissance

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Downloads

memory/472-15-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-18-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-23-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-10-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-26-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/472-24-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/472-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-14-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-20-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/472-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/472-27-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1640-6-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1640-8-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000000760000-0x00000000007DC000-memory.dmp

Filesize
496KB

Download
memory/1640-9-0x0000000005570000-0x00000000055E6000-memory.dmp

Filesize
472KB

Download
memory/1640-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1640-7-0x0000000005500000-0x0000000005568000-memory.dmp

Filesize
416KB

Download
memory/1640-1-0x00000000008E0000-0x0000000000982000-memory.dmp

Filesize
648KB

Download
memory/1640-25-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1640-5-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1640-4-0x00000000003D0000-0x00000000003E8000-memory.dmp

Filesize
96KB

Download
memory/1640-3-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads