matiex | e24d753b84d8ca4411b4157a300baea0e41cfdb04e6f0bb437b4273110f89d53

Analysis

max time kernel
140s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2023 15:05

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General

Target

007556d5a71f6dd74f0b5a9778cf31ff.exe
Size

476KB
MD5

007556d5a71f6dd74f0b5a9778cf31ff
SHA1

ada81ef2208703f22b1fe99f7342927bc9640dd6
SHA256

e24d753b84d8ca4411b4157a300baea0e41cfdb04e6f0bb437b4273110f89d53
SHA512

9cbe5768e5b9c86cc4b8ed7f55122747acbe828ac295831082e793eaa76ab6cf169602a7fa28355ebec6b8722d2abbec634c33d148c93f456fa5a13d317769d2
SSDEEP

12288:5js193PQAW630ZwDAiu/7mmtfOD6IybGr2XTd:5bL630ZhZz1tfYTyboM

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
srvc13.turhost.com
Port:
587
Username:
info@bilgitekdagitim.com
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/2640-134-0x0000000000400000-0x0000000000476000-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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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

9 checkip.dyndns.org
11 freegeoip.app
12 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

007556d5a71f6dd74f0b5a9778cf31ff.exe

description pid process target process

PID 3044 set thread context of 2640 3044 007556d5a71f6dd74f0b5a9778cf31ff.exe MSBuild.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3340 2640 WerFault.exe MSBuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

007556d5a71f6dd74f0b5a9778cf31ff.exe

pid process

3044 007556d5a71f6dd74f0b5a9778cf31ff.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 2640 MSBuild.exe

flow	ioc
9	checkip.dyndns.org
11	freegeoip.app
12	freegeoip.app

description	pid	process	target process
PID 3044 set thread context of 2640	3044	007556d5a71f6dd74f0b5a9778cf31ff.exe	MSBuild.exe

pid	pid_target	process	target process
3340	2640	WerFault.exe	MSBuild.exe

pid	process
3044	007556d5a71f6dd74f0b5a9778cf31ff.exe

description	pid	process
Token: SeDebugPrivilege	2640	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

007556d5a71f6dd74f0b5a9778cf31ff.exe

description	pid	process	target process
PID 3044 wrote to memory of 2640	3044	007556d5a71f6dd74f0b5a9778cf31ff.exe	MSBuild.exe
PID 3044 wrote to memory of 2640	3044	007556d5a71f6dd74f0b5a9778cf31ff.exe	MSBuild.exe
PID 3044 wrote to memory of 2640	3044	007556d5a71f6dd74f0b5a9778cf31ff.exe	MSBuild.exe
PID 3044 wrote to memory of 2640	3044	007556d5a71f6dd74f0b5a9778cf31ff.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\007556d5a71f6dd74f0b5a9778cf31ff.exe
"C:\Users\Admin\AppData\Local\Temp\007556d5a71f6dd74f0b5a9778cf31ff.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Users\Admin\AppData\Local\Temp\007556d5a71f6dd74f0b5a9778cf31ff.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1996
3⤵
- Program crash
PID:3340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2640 -ip 2640
1⤵
PID:4572

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/2640-132-0x0000000000000000-mapping.dmp

Download
memory/2640-134-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2640-135-0x0000000005710000-0x00000000057AC000-memory.dmp

Filesize
624KB

Download
memory/2640-136-0x0000000005D60000-0x0000000006304000-memory.dmp

Filesize
5.6MB

Download
memory/2640-137-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/3044-133-0x000000000053D000-0x0000000000540000-memory.dmp

Filesize
12KB

Download