matiex | def1f0f4fa374f342d42d9d71b99212981cbbc5462568ba89ee9c3d13417b825

General

Target
mo908000800j865.exe
Size 577KB
Sample220508-x7qpvsbbhm
SHA256 deb96dddc557e467d8e3ac9bf5ee8fc167f74461d84e823925c0f8c7b33422e7
MD5 dfd4dde62f8d8746edc2b7f450259181
SHA1 50a0f7a1fa3e7bcd4ded00ae20e35e585d9f7867
SHA512 15646b34619848f38e19959b3dff3c3448eda137e527f58f22babfcf304154831f72626890b955f6ca5934efa78f8d0ee83137ad0cd66e60b9c1c17149162a33
MD5 SHA1 SHA512

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

resource	yara_rule
behavioral2/memory/2460-132-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

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 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	freegeoip.app
12	checkip.dyndns.org
14	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4420 set thread context of 2460	4420	mo908000800j865.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2968	2460	WerFault.exe	85

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4420	mo908000800j865.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 2460	4420	mo908000800j865.exe	85
PID 4420 wrote to memory of 2460	4420	mo908000800j865.exe	85
PID 4420 wrote to memory of 2460	4420	mo908000800j865.exe	85
PID 4420 wrote to memory of 2460	4420	mo908000800j865.exe	85

outlook_office_path 1 IoCs

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

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\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4420
- 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:2460
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 1992
    3⤵
    - Program crash
    PID:2968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2460 -ip 2460
1⤵
PID:4612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2460-132-0x0000000000400000-0x0000000000472000-memory.dmp

Download

memory/2460-133-0x00000000055C0000-0x000000000565C000-memory.dmp

Download

memory/2460-134-0x0000000005C10000-0x00000000061B4000-memory.dmp

Download

memory/2460-135-0x0000000005700000-0x0000000005766000-memory.dmp

Download

memory/4420-130-0x0000000000CA0000-0x0000000000CCA000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads