matiex | cfb126c1f3cb879c92107a21752c8d9331c3e5991e6501ec0a13bd28ebbd54aa

General

Target

lJFlbD0vMzZDdIO.exe
Size

734KB
MD5

a720e7676c39877cf2afd73790c6f1dd
SHA1

e4c074d365f4a1adb9217357c1422425becdcef4
SHA256

cfb126c1f3cb879c92107a21752c8d9331c3e5991e6501ec0a13bd28ebbd54aa
SHA512

c9c4ce02fdab0ab0bcda5c29141f1ca4c9b3ea0b914ae7079fe74d47884f5eb2da5c71c14c09c83c0f82ac24f346bfcf6e8cad64ed954d82fbb4f4761470eb21

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

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
behavioral2/memory/3696-127-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral2/memory/3696-128-0x000000000047032E-mapping.dmp	family_matiex
behavioral2/memory/3696-130-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral2/memory/3696-131-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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:

lJFlbD0vMzZDdIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lJFlbD0vMzZDdIO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lJFlbD0vMzZDdIO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lJFlbD0vMzZDdIO.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

28 checkip.dyndns.org
30 freegeoip.app
31 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

lJFlbD0vMzZDdIO.exe

description pid process target process

PID 3736 set thread context of 3696 3736 lJFlbD0vMzZDdIO.exe lJFlbD0vMzZDdIO.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

lJFlbD0vMzZDdIO.exe

pid process

3696 lJFlbD0vMzZDdIO.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

lJFlbD0vMzZDdIO.exe

description pid process

Token: SeDebugPrivilege 3696 lJFlbD0vMzZDdIO.exe

flow	ioc
28	checkip.dyndns.org
30	freegeoip.app
31	freegeoip.app

description	pid	process	target process
PID 3736 set thread context of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe

pid	process
3696	lJFlbD0vMzZDdIO.exe

description	pid	process
Token: SeDebugPrivilege	3696	lJFlbD0vMzZDdIO.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

lJFlbD0vMzZDdIO.exelJFlbD0vMzZDdIO.exe

description	pid	process	target process
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3736 wrote to memory of 3696	3736	lJFlbD0vMzZDdIO.exe	lJFlbD0vMzZDdIO.exe
PID 3696 wrote to memory of 744	3696	lJFlbD0vMzZDdIO.exe	netsh.exe
PID 3696 wrote to memory of 744	3696	lJFlbD0vMzZDdIO.exe	netsh.exe
PID 3696 wrote to memory of 744	3696	lJFlbD0vMzZDdIO.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

lJFlbD0vMzZDdIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lJFlbD0vMzZDdIO.exe

outlook_win_path 1 IoCs

Processes:

lJFlbD0vMzZDdIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	lJFlbD0vMzZDdIO.exe

C:\Users\Admin\AppData\Local\Temp\lJFlbD0vMzZDdIO.exe
"C:\Users\Admin\AppData\Local\Temp\lJFlbD0vMzZDdIO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3736

C:\Users\Admin\AppData\Local\Temp\lJFlbD0vMzZDdIO.exe
"C:\Users\Admin\AppData\Local\Temp\lJFlbD0vMzZDdIO.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3696

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\lJFlbD0vMzZDdIO.exe.log

MD5
b1a97e7c826ffc38c8d2c00eb49b8a01

SHA1
2d094c94fbcecd045370b1470fe77d10128ccac4

SHA256
c7c76581c6e385d9b79c074273d3335fe2d0bd3880e2dee2b64dd2f9f3106944

SHA512
ed4e770718235213d5c54ff8966b87cdb37fc392ae5abe1eb8d8dd6a8832cf8a28a33dc10d3c582cf480853c41a6680401e6f2acab473548f5cb30a8e1b8965f

Download Submit
memory/744-136-0x0000000000000000-mapping.dmp

Download
memory/3696-132-0x0000000005810000-0x00000000058AC000-memory.dmp

Filesize
624KB

Download
memory/3696-135-0x00000000058B0000-0x0000000005DAE000-memory.dmp

Filesize
5.0MB

Download
memory/3696-139-0x0000000006E70000-0x0000000006E7A000-memory.dmp

Filesize
40KB

Download
memory/3696-138-0x0000000006ED0000-0x0000000006F62000-memory.dmp

Filesize
584KB

Download
memory/3696-137-0x0000000007000000-0x00000000071C2000-memory.dmp

Filesize
1.8MB

Download
memory/3696-134-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/3696-133-0x0000000005DB0000-0x00000000062AE000-memory.dmp

Filesize
5.0MB

Download
memory/3696-131-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3696-127-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3696-128-0x000000000047032E-mapping.dmp

Download
memory/3696-130-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3736-119-0x00000000054C0000-0x00000000059BE000-memory.dmp

Filesize
5.0MB

Download
memory/3736-126-0x0000000008AA0000-0x0000000008B5C000-memory.dmp

Filesize
752KB

Download
memory/3736-117-0x0000000000500000-0x00000000005BE000-memory.dmp

Filesize
760KB

Download
memory/3736-125-0x0000000008660000-0x00000000086AB000-memory.dmp

Filesize
300KB

Download
memory/3736-124-0x00000000053A0000-0x00000000053AE000-memory.dmp

Filesize
56KB

Download
memory/3736-120-0x0000000004FC0000-0x0000000005052000-memory.dmp

Filesize
584KB

Download
memory/3736-118-0x0000000000500000-0x00000000005BE000-memory.dmp

Filesize
760KB

Download
memory/3736-123-0x00000000051D0000-0x000000000526C000-memory.dmp

Filesize
624KB

Download
memory/3736-122-0x00000000050A0000-0x00000000050AA000-memory.dmp

Filesize
40KB

Download
memory/3736-121-0x0000000004FC0000-0x00000000054BE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads