matiex | f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef

General

Target

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
Size

995KB
MD5

05a8fd3356cef3603e257335d54b1804
SHA1

beea500b48ec4702359a2c7973fb0d29aecead28
SHA256

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef
SHA512

4b4885209ec3b1d7dbcf6618cbbadd35eeede391cbd08fc0792166632fe320d8e9632437a85613c008703f700b41abeb18a575136c68a72cd3b56bce8b279870

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1329208090:AAED2kwCe6Uq4WmAg--eYiyQfDEc5qPX0D4/sendMessage?chat_id=1299117268

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/520-64-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/520-65-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/520-66-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/520-67-0x000000000046DAEE-mapping.dmp	family_matiex
behavioral1/memory/520-69-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/520-71-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

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:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.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	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.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

Suspicious use of SetThreadContext 1 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

description	pid	process	target process
PID 1960 set thread context of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1488 520 WerFault.exe f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
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

Processes:

schtasks.exe

pid process

1800 schtasks.exe

pid	pid_target	process	target process
1488	520	WerFault.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

pid	process
1800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

pid	process
1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exef4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

description	pid	process
Token: SeDebugPrivilege	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
Token: SeDebugPrivilege	520	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exef4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

outlook_office_path 1 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.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	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

outlook_win_path 1 IoCs

Processes:

f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.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	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe

C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
"C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EvvUebihf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6D0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1800
- C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
  "C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe"
  2⤵
  PID:276
- C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
  "C:\Users\Admin\AppData\Local\Temp\f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:520
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 1760
    3⤵
    - Program crash
    PID:1488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD6D0.tmp

Filesize
1KB

MD5
aa092b7538c415baee8da6ae3b469f07

SHA1
154cc8e25027d2e281f929009d5936afe7e5ac1b

SHA256
3c0bd7838fee03e62d5fb8aa636f39ee7d18a878d840696711480058266a03c2

SHA512
e66b8fd07b887196c873fc6999829ba12ca82ad0cc0bb60ba885cc164cc8ec5edd91c58bef9652093c6573e1f2c24239bb19bbe42ea4b3084dfa9ce7a4bd1843

Download Submit
memory/520-67-0x000000000046DAEE-mapping.dmp

Download
memory/520-66-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-71-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-69-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-62-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-65-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-61-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/520-64-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1488-73-0x0000000000000000-mapping.dmp

Download
memory/1800-59-0x0000000000000000-mapping.dmp

Download
memory/1960-56-0x00000000096E0000-0x00000000096E8000-memory.dmp

Filesize
32KB

Download
memory/1960-55-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/1960-54-0x0000000001380000-0x000000000147E000-memory.dmp

Filesize
1016KB

Download
memory/1960-58-0x0000000007570000-0x000000000760E000-memory.dmp

Filesize
632KB

Download
memory/1960-57-0x00000000074E0000-0x0000000007576000-memory.dmp

Filesize
600KB

Download

description	pid	process	target process
PID 1960 wrote to memory of 1800	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	schtasks.exe
PID 1960 wrote to memory of 1800	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	schtasks.exe
PID 1960 wrote to memory of 1800	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	schtasks.exe
PID 1960 wrote to memory of 1800	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	schtasks.exe
PID 1960 wrote to memory of 276	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 276	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 276	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 276	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 1960 wrote to memory of 520	1960	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe
PID 520 wrote to memory of 1488	520	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	WerFault.exe
PID 520 wrote to memory of 1488	520	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	WerFault.exe
PID 520 wrote to memory of 1488	520	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	WerFault.exe
PID 520 wrote to memory of 1488	520	f4b29519255e0d839cac6027463fc12016f0f94faa2c201901f516489ec9a0ef.exe	WerFault.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads