matiex | 184b7a500fad91c069dea731aed972920edd53757f15b92fade356fe043e1610

General

Target

REVISED_.exe
Size

579KB
MD5

cbfb94a41abae103511d729b00687c7a
SHA1

f491f44fbbaafb97275cc90ecaa37926534a6151
SHA256

b9d37ce3380de623e8225b466fcd061db7f7828a2e39deace159e5c7f3455015
SHA512

77bfe24a4b0dcc0badcf0b33fd1da5335fadf0e366db4411b0ca130fecefa288006c06cf5bf363edd1b038619e1f8654e0e88020c454e4b0399d906c17128a59

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
mrruben0094

Signatures

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

Matiex Main Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1944-67-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1944-68-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1944-69-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1944-70-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Drops startup file 2 IoCs

Processes:

pOwERsHeLl.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	pOwERsHeLl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	pOwERsHeLl.exe

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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

REVISED_.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REVISED_.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REVISED_.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REVISED_.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 freegeoip.app
4 checkip.dyndns.org
8 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

REVISED_.exe

description pid process target process

PID 1668 set thread context of 1944 1668 REVISED_.exe REVISED_.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1880 1944 WerFault.exe REVISED_.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

pOwERsHeLl.exeWerFault.exe

pid process

776 pOwERsHeLl.exe
1880 WerFault.exe
1880 WerFault.exe
1880 WerFault.exe
1880 WerFault.exe
1880 WerFault.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

pOwERsHeLl.exeREVISED_.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 776 pOwERsHeLl.exe
Token: SeDebugPrivilege 1944 REVISED_.exe
Token: SeDebugPrivilege 1880 WerFault.exe

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

description	pid	process	target process
PID 1668 set thread context of 1944	1668	REVISED_.exe	REVISED_.exe

pid	pid_target	process	target process
1880	1944	WerFault.exe	REVISED_.exe

pid	process
776	pOwERsHeLl.exe
1880	WerFault.exe
1880	WerFault.exe
1880	WerFault.exe
1880	WerFault.exe
1880	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	776	pOwERsHeLl.exe
Token: SeDebugPrivilege	1944	REVISED_.exe
Token: SeDebugPrivilege	1880	WerFault.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

REVISED_.exeREVISED_.exe

description	pid	process	target process
PID 1668 wrote to memory of 776	1668	REVISED_.exe	pOwERsHeLl.exe
PID 1668 wrote to memory of 776	1668	REVISED_.exe	pOwERsHeLl.exe
PID 1668 wrote to memory of 776	1668	REVISED_.exe	pOwERsHeLl.exe
PID 1668 wrote to memory of 776	1668	REVISED_.exe	pOwERsHeLl.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1668 wrote to memory of 1944	1668	REVISED_.exe	REVISED_.exe
PID 1944 wrote to memory of 1880	1944	REVISED_.exe	WerFault.exe
PID 1944 wrote to memory of 1880	1944	REVISED_.exe	WerFault.exe
PID 1944 wrote to memory of 1880	1944	REVISED_.exe	WerFault.exe
PID 1944 wrote to memory of 1880	1944	REVISED_.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

REVISED_.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REVISED_.exe

outlook_win_path 1 IoCs

Processes:

REVISED_.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REVISED_.exe

C:\Users\Admin\AppData\Local\Temp\REVISED_.exe
"C:\Users\Admin\AppData\Local\Temp\REVISED_.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\pOwERsHeLl.exe
"pOwERsHeLl.exe" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\REVISED_.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:776

C:\Users\Admin\AppData\Local\Temp\REVISED_.exe
"C:\Users\Admin\AppData\Local\Temp\REVISED_.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 1812
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/776-63-0x0000000002702000-0x0000000002704000-memory.dmp

Filesize
8KB

Download
memory/776-60-0x0000000002700000-0x0000000002701000-memory.dmp

Filesize
4KB

Download
memory/776-59-0x0000000070BA1000-0x0000000070BA2000-memory.dmp

Filesize
4KB

Download
memory/776-62-0x0000000002701000-0x0000000002702000-memory.dmp

Filesize
4KB

Download
memory/776-61-0x0000000070BA2000-0x0000000070BA4000-memory.dmp

Filesize
8KB

Download
memory/1668-64-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/1668-54-0x0000000000E80000-0x0000000000F16000-memory.dmp

Filesize
600KB

Download
memory/1668-57-0x0000000004560000-0x0000000004561000-memory.dmp

Filesize
4KB

Download
memory/1668-56-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1668-55-0x00000000745FE000-0x00000000745FF000-memory.dmp

Filesize
4KB

Download
memory/1880-73-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/1944-65-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1944-67-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1944-68-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1944-69-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1944-70-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1944-71-0x00000000745FE000-0x00000000745FF000-memory.dmp

Filesize
4KB

Download
memory/1944-72-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/1944-66-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads