matiex | e0b04e8988248b327bde20ad36087876e6c2681dcf890748b107d686ca90ecd1

Analysis

max time kernel
130s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
21/02/2022, 09:47

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General

Target
1u0Zwj9C2xbMA6p.exe
Size 1.2MB
Sample220221-lscc5sagen
SHA256 b2196e769c2ab067096df011dfa35bc9d02b594211b610b84d833d3a152ce3f4
MD5 faa90e7fee57b0ad8bb527f71eb4738c
SHA1 70cde86bddc0505007f3cbaf96661f55de57a8df
SHA512 2323e57d1500396c60cf3f363b2ae90f1f860ecca9fbb6bcf39e246f1718b99ffbd6bb5ea31762b0e272cd949bf96ce74714b5120a4c4259a387fa6ed376798c
MD5 SHA1 SHA512

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.privateemail.com
Port
587
Username
[email protected]
Password
Nigerian99

Extracted

Family

matiex

Credentials

Protocol
smtp
Host
smtp.privateemail.com
Port
587
Username
[email protected]
Password
Nigerian99

Signatures

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

Matiex Main Payload 1 IoCs

resource	yara_rule
behavioral2/memory/912-142-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	1u0Zwj9C2xbMA6p.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1u0Zwj9C2xbMA6p.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1u0Zwj9C2xbMA6p.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1u0Zwj9C2xbMA6p.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
57	checkip.dyndns.org
59	freegeoip.app
60	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 820 set thread context of 912	820	1u0Zwj9C2xbMA6p.exe	101

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
820	1u0Zwj9C2xbMA6p.exe
820	1u0Zwj9C2xbMA6p.exe
820	1u0Zwj9C2xbMA6p.exe
912	1u0Zwj9C2xbMA6p.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2772	svchost.exe
Token: SeCreatePagefilePrivilege	2772	svchost.exe
Token: SeShutdownPrivilege	2772	svchost.exe
Token: SeCreatePagefilePrivilege	2772	svchost.exe
Token: SeShutdownPrivilege	2772	svchost.exe
Token: SeCreatePagefilePrivilege	2772	svchost.exe
Token: SeDebugPrivilege	820	1u0Zwj9C2xbMA6p.exe
Token: SeDebugPrivilege	912	1u0Zwj9C2xbMA6p.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
912	1u0Zwj9C2xbMA6p.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 2896	820	1u0Zwj9C2xbMA6p.exe	98
PID 820 wrote to memory of 2896	820	1u0Zwj9C2xbMA6p.exe	98
PID 820 wrote to memory of 2896	820	1u0Zwj9C2xbMA6p.exe	98
PID 820 wrote to memory of 440	820	1u0Zwj9C2xbMA6p.exe	100
PID 820 wrote to memory of 440	820	1u0Zwj9C2xbMA6p.exe	100
PID 820 wrote to memory of 440	820	1u0Zwj9C2xbMA6p.exe	100
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 820 wrote to memory of 912	820	1u0Zwj9C2xbMA6p.exe	101
PID 912 wrote to memory of 1488	912	1u0Zwj9C2xbMA6p.exe	102
PID 912 wrote to memory of 1488	912	1u0Zwj9C2xbMA6p.exe	102
PID 912 wrote to memory of 1488	912	1u0Zwj9C2xbMA6p.exe	102

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1u0Zwj9C2xbMA6p.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1u0Zwj9C2xbMA6p.exe

C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.exe
"C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Fywrdc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7874.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2896
- C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.exe
  "C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.exe"
  2⤵
  PID:440
- C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.exe
  "C:\Users\Admin\AppData\Local\Temp\1u0Zwj9C2xbMA6p.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:912
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/820-131-0x0000000007DC0000-0x0000000007E5C000-memory.dmp

Download

memory/820-132-0x000000007441E000-0x000000007441F000-memory.dmp

Download

memory/820-133-0x0000000008410000-0x00000000089B4000-memory.dmp

Download

memory/820-134-0x0000000007F00000-0x0000000007F92000-memory.dmp

Download

memory/820-135-0x0000000007E80000-0x0000000007E8A000-memory.dmp

Download

memory/820-136-0x0000000007FA0000-0x0000000007FF6000-memory.dmp

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memory/820-137-0x0000000008040000-0x0000000008041000-memory.dmp

Download

memory/820-130-0x0000000000E40000-0x0000000000F74000-memory.dmp

Download

memory/912-142-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/912-144-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Download

memory/912-145-0x000000007441E000-0x000000007441F000-memory.dmp

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memory/912-146-0x0000000005C50000-0x0000000005C51000-memory.dmp

Download

memory/912-147-0x0000000007930000-0x0000000007AF2000-memory.dmp

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memory/2772-140-0x000002F487FA0000-0x000002F487FA4000-memory.dmp

Download

memory/2772-139-0x000002F485920000-0x000002F485930000-memory.dmp

Download

memory/2772-138-0x000002F485360000-0x000002F485370000-memory.dmp

Download