matiex | 3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7

General

Target

3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe
Size

551KB
MD5

3eb6593e42fb0f63c30f5215994074b1
SHA1

208c3a6c75b7b6b2f4a3ee93396b76cb9251896f
SHA256

3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7
SHA512

e853bace4a7532c4fe12c4ec6e9f45d668e9376c3b3ecbec739bc3db458f68697d7812771caad35f1f6e2b70eae0ddf10815e2bbc5ab4d7ed307a2db6d7f530d

Score

10^/10

matiex collection keylogger 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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1988-132-0x0000000000400000-0x0000000000472000-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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

21 freegeoip.app
19 checkip.dyndns.org

flow	ioc
21	freegeoip.app
19	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe

description	pid	process	target process
PID 5060 set thread context of 1988	5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe	MSBuild.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3236 1988 WerFault.exe MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe

pid process

5060 3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 1988 MSBuild.exe

pid	pid_target	process	target process
3236	1988	WerFault.exe	MSBuild.exe

pid	process
5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe

description	pid	process
Token: SeDebugPrivilege	1988	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe

description	pid	process	target process
PID 5060 wrote to memory of 1988	5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe	MSBuild.exe
PID 5060 wrote to memory of 1988	5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe	MSBuild.exe
PID 5060 wrote to memory of 1988	5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe	MSBuild.exe
PID 5060 wrote to memory of 1988	5060	3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe
"C:\Users\Admin\AppData\Local\Temp\3f444cc8ccb0bebbb6539b98d64e8fed19e2f7e6f950d18d63e9e8716012ccb7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5060

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 1708
3⤵
- Program crash
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1988 -ip 1988
1⤵
PID:4952

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/1988-131-0x0000000000000000-mapping.dmp

Download
memory/1988-132-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1988-133-0x0000000005770000-0x000000000580C000-memory.dmp

Filesize
624KB

Download
memory/1988-134-0x0000000005E20000-0x00000000063C4000-memory.dmp

Filesize
5.6MB

Download
memory/1988-135-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/5060-130-0x0000000000800000-0x0000000000824000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads