matiex | 205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1

General

Target

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
Size

714KB
MD5

c31ef8a4e6c0320263b90436ca3236be
SHA1

90ba9958ec278f51a6f2bfc99c0de908d3d4fa5b
SHA256

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1
SHA512

e78054eea698da91e6b85e60e83e940bf8fd88b73ad08031831d9a85b097c5e55d066cde0792ec87c1c5e248fb04fee36a96c85891b2dd14e4a334ff69ad6b24

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot\MK-Voice.mp3/sendMessage?chat_id=A

Signatures

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

Matiex Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3048-137-0x0000000000400000-0x0000000000472000-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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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

60 checkip.dyndns.org
62 freegeoip.app
63 freegeoip.app

flow	ioc
60	checkip.dyndns.org
62	freegeoip.app
63	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

Processes:

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe

description	pid	process	target process
PID 3344 set thread context of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2620 3048 WerFault.exe MSBuild.exe

pid	pid_target	process	target process
2620	3048	WerFault.exe	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe

pid	process
3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exeMSBuild.exe

description	pid	process
Token: SeDebugPrivilege	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
Token: SeDebugPrivilege	3048	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe

description	pid	process	target process
PID 3344 wrote to memory of 3280	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3280	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3280	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe
PID 3344 wrote to memory of 3048	3344	205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe
"C:\Users\Admin\AppData\Local\Temp\205146ce59425a87371d53d6a5ff9be127a2914b3e931361065ba56d7f84acc1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3344

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
PID:3280

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 1992
3⤵
- Program crash
PID:2620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3048 -ip 3048
1⤵
PID:1544

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/3048-136-0x0000000000000000-mapping.dmp

Download
memory/3048-137-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/3048-138-0x0000000004F90000-0x0000000004FF6000-memory.dmp

Filesize
408KB

Download
memory/3048-139-0x0000000006650000-0x0000000006812000-memory.dmp

Filesize
1.8MB

Download
memory/3280-135-0x0000000000000000-mapping.dmp

Download
memory/3344-130-0x00000000008D0000-0x0000000000988000-memory.dmp

Filesize
736KB

Download
memory/3344-131-0x0000000005950000-0x0000000005EF4000-memory.dmp

Filesize
5.6MB

Download
memory/3344-132-0x00000000053A0000-0x0000000005432000-memory.dmp

Filesize
584KB

Download
memory/3344-133-0x0000000005340000-0x000000000534A000-memory.dmp

Filesize
40KB

Download
memory/3344-134-0x0000000007B20000-0x0000000007BBC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads