matiex | 4ccd414ea068d3fb02fb086a88cc08ba851f3787fdf25e12af76e812c5be15ea

General

Target

546632 - MARITIME WK-2 OCT.exe
Size

773KB
MD5

910f1f2bdb64a368db77afd1491ed7e3
SHA1

c9e60b441c2a1ccabe57454f9e737cdbb74d372f
SHA256

d033f6fc657267d6aa462537cc47ea3f7379b86cbadf6499199c7e6906b107b3
SHA512

62a0c2165b6e71a3406801b99fa1a1d1ecb57ed92413084569b1591c5c5c5cb691fa31f5cee5a2f5b9f1ac4ce7ff626ec59427eee96f014cebf391f1cc278ac6

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.avicorrpinc.com
Port:
587
Username:
[email protected]
Password:
admin@abc123
Email To:
[email protected]

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/1448-62-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/1448-63-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/1448-64-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/1448-65-0x000000000046E01E-mapping.dmp	family_matiex
behavioral1/memory/1448-67-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral1/memory/1448-69-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

546632 - MARITIME WK-2 OCT.exe

description pid process target process

PID 812 set thread context of 1448 812 546632 - MARITIME WK-2 OCT.exe MSBuild.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1004 1448 WerFault.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

546632 - MARITIME WK-2 OCT.exe

pid process

812 546632 - MARITIME WK-2 OCT.exe
812 546632 - MARITIME WK-2 OCT.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

546632 - MARITIME WK-2 OCT.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 812 546632 - MARITIME WK-2 OCT.exe
Token: SeDebugPrivilege 1448 MSBuild.exe

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

description	pid	process	target process
PID 812 set thread context of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe

pid	pid_target	process	target process
1004	1448	WerFault.exe	MSBuild.exe

pid	process
812	546632 - MARITIME WK-2 OCT.exe
812	546632 - MARITIME WK-2 OCT.exe

description	pid	process
Token: SeDebugPrivilege	812	546632 - MARITIME WK-2 OCT.exe
Token: SeDebugPrivilege	1448	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

546632 - MARITIME WK-2 OCT.exeMSBuild.exe

description	pid	process	target process
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 812 wrote to memory of 1448	812	546632 - MARITIME WK-2 OCT.exe	MSBuild.exe
PID 1448 wrote to memory of 1004	1448	MSBuild.exe	WerFault.exe
PID 1448 wrote to memory of 1004	1448	MSBuild.exe	WerFault.exe
PID 1448 wrote to memory of 1004	1448	MSBuild.exe	WerFault.exe
PID 1448 wrote to memory of 1004	1448	MSBuild.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\546632 - MARITIME WK-2 OCT.exe
"C:\Users\Admin\AppData\Local\Temp\546632 - MARITIME WK-2 OCT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:812

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1736
3⤵
- Program crash
PID:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/812-54-0x00000000001B0000-0x0000000000278000-memory.dmp

Filesize
800KB

Download
memory/812-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/812-56-0x00000000002B0000-0x00000000002BA000-memory.dmp

Filesize
40KB

Download
memory/812-57-0x0000000005190000-0x000000000520C000-memory.dmp

Filesize
496KB

Download
memory/812-58-0x0000000005C60000-0x0000000005D0C000-memory.dmp

Filesize
688KB

Download
memory/1004-71-0x0000000000000000-mapping.dmp

Download
memory/1448-60-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-62-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-63-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-64-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-65-0x000000000046E01E-mapping.dmp

Download
memory/1448-67-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-69-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1448-59-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads