matiex | 442977f31528f2db2745d7675e06d966606531e98851b4b981da008f8901ebb8

General

Target

0908000009h090000.exe
Size

577KB
MD5

40f119bd23e3dfe95c416a839da87142
SHA1

164cca839ad92c95b3ccbf75873c8d590ff29c89
SHA256

6fa65eef03e50dbaba9ba7729d7d5f4a24d9302c028ec1640db45d47096ab29d
SHA512

57b30e1242d22c4445b28762fa0e14577169d1e6863a989f0cea6a6affe01800ca9c0e6820ee0818bddd8cc4de58754986927be8d06badd7187069c0eafe33b1

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/1984-132-0x0000000000400000-0x0000000000472000-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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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

25 checkip.dyndns.org
28 freegeoip.app
29 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

0908000009h090000.exe

description pid process target process

PID 2056 set thread context of 1984 2056 0908000009h090000.exe MSBuild.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3956 1984 WerFault.exe MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

0908000009h090000.exe

pid process

2056 0908000009h090000.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 1984 MSBuild.exe

flow	ioc
25	checkip.dyndns.org
28	freegeoip.app
29	freegeoip.app

description	pid	process	target process
PID 2056 set thread context of 1984	2056	0908000009h090000.exe	MSBuild.exe

pid	pid_target	process	target process
3956	1984	WerFault.exe	MSBuild.exe

pid	process
2056	0908000009h090000.exe

description	pid	process
Token: SeDebugPrivilege	1984	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

0908000009h090000.exe

description	pid	process	target process
PID 2056 wrote to memory of 1984	2056	0908000009h090000.exe	MSBuild.exe
PID 2056 wrote to memory of 1984	2056	0908000009h090000.exe	MSBuild.exe
PID 2056 wrote to memory of 1984	2056	0908000009h090000.exe	MSBuild.exe
PID 2056 wrote to memory of 1984	2056	0908000009h090000.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\0908000009h090000.exe
"C:\Users\Admin\AppData\Local\Temp\0908000009h090000.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2056
- 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:1984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 1984
    3⤵
    - Program crash
    PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1984 -ip 1984
1⤵
PID:3436

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/1984-131-0x0000000000000000-mapping.dmp

Download
memory/1984-132-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1984-133-0x0000000005890000-0x000000000592C000-memory.dmp

Filesize
624KB

Download
memory/1984-134-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/1984-135-0x0000000005810000-0x0000000005876000-memory.dmp

Filesize
408KB

Download
memory/2056-130-0x0000000000100000-0x0000000000129000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads