matiex | a68f82eeab67310e50631899bb57fdac1e81c6b2d04db87c8aa564ff2cc18748

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-05-2024 23:50

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General

Target

826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe
Size

703KB
MD5

826690f8e44578c940cf6b2bc6aa745a
SHA1

d640ba3276d1998385e6f7237c6c43b779553e26
SHA256

a68f82eeab67310e50631899bb57fdac1e81c6b2d04db87c8aa564ff2cc18748
SHA512

6f07b6f0b24735b7c83f739c3c81f3bb351da1dc3f21bd1a5247c2a71b8c7dabb65c027f5d61071c8a8e093aa62109ef00917851e761fe2c211c0745702f40a5
SSDEEP

12288:ZP0FsHBSlKz7E1jl8Y/fOjNkoQknKKVCJ22zKMzFfVJ/n8DtFSfWwwjj74JN:MKz72jlX3GTQxz22e48reW/cJN

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
ebop.website
Port:
587
Username:
[email protected]
Password:
P@ssw0rdP@ssw0rd

Signatures

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

Matiex Main payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2108-5-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2108-9-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2108-8-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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

8 freegeoip.app
9 freegeoip.app
4 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe

description pid process target process

PID 1548 set thread context of 2108 1548 826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe RegAsm.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe

pid process

1548 826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2108 RegAsm.exe

flow	ioc
8	freegeoip.app
9	freegeoip.app
4	checkip.dyndns.org

description	pid	process	target process
PID 1548 set thread context of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe

pid	process
1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2108	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe

description	pid	process	target process
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe
PID 1548 wrote to memory of 2108	1548	826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\826690f8e44578c940cf6b2bc6aa745a_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2108

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1548-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/1548-1-0x0000000000AF0000-0x0000000000BA6000-memory.dmp

Filesize
728KB

Download
memory/1548-2-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1548-3-0x0000000004ED0000-0x0000000004F4A000-memory.dmp

Filesize
488KB

Download
memory/1548-4-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1548-10-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/2108-5-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2108-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2108-8-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download