matiex | 3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd

General

Target

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
Size

252KB
MD5

2fdcd6f63014c05331365fe96538c010
SHA1

107473be86d052f460685f9e5879aed530433b5b
SHA256

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd
SHA512

da553a61ca0e9cc877941c22652f0ae4917c05e4b0f699e4518dfd60b139e06a17747cfb26dce67685d41f5164d49eedae63e94c310444ce7a24b3783b5283f5

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
pro02.emailserver.vn
Port:
587
Username:
[email protected]
Password:
lv123456
Email To:
[email protected]

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/4484-137-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exeWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	WScript.exe

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:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

27 checkip.dyndns.org

flow	ioc
27	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	pid	process	target process
PID 2864 set thread context of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exepowershell.exe

pid	process
2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
3344	powershell.exe
3344	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exepowershell.exe3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	pid	process
Token: SeDebugPrivilege	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
Token: SeDebugPrivilege	3344	powershell.exe
Token: SeDebugPrivilege	4484	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exeWScript.exe

description	pid	process	target process
PID 2864 wrote to memory of 4212	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	WScript.exe
PID 2864 wrote to memory of 4212	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	WScript.exe
PID 2864 wrote to memory of 4212	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	WScript.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 2864 wrote to memory of 4484	2864	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
PID 4212 wrote to memory of 3344	4212	WScript.exe	powershell.exe
PID 4212 wrote to memory of 3344	4212	WScript.exe	powershell.exe
PID 4212 wrote to memory of 3344	4212	WScript.exe	powershell.exe

outlook_office_path 1 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

outlook_win_path 1 IoCs

Processes:

3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe

C:\Users\Admin\AppData\Local\Temp\3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
"C:\Users\Admin\AppData\Local\Temp\3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\zLonkuquntjipat.vbs"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4212

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath C:\
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3344

C:\Users\Admin\AppData\Local\Temp\3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
C:\Users\Admin\AppData\Local\Temp\3f3a8442b3a36cf557f9535d67c11a1040392df889587b2f6341d682b4cb47dd.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\zLonkuquntjipat.vbs
MD5
570e1760047887d4773c02a7f0c0a9ef

SHA1
ea36b58136c15c0c38ca496e5fd55e9de62073dc

SHA256
c14774447472f5eec655d2046e6e4930b3bed4877de328d4f8a58416b7144db2

SHA512
aeb14674534d2a4cc6d58fe733a4a6085d031f1a45ddad9e3e8fa312879b6cd8a1dff962529639b8ebea98d1ca8a9d42c0893d267696a70c7e9db696980b9ef3

Download Submit
memory/2864-130-0x00000000006F0000-0x0000000000736000-memory.dmp

Filesize
280KB

Download
memory/2864-131-0x0000000004FC0000-0x0000000005026000-memory.dmp

Filesize
408KB

Download
memory/2864-132-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/2864-133-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/2864-134-0x00000000056B0000-0x0000000005726000-memory.dmp

Filesize
472KB

Download
memory/2864-135-0x0000000005730000-0x000000000574E000-memory.dmp

Filesize
120KB

Download
memory/3344-154-0x0000000008190000-0x000000000880A000-memory.dmp

Filesize
6.5MB

Download
memory/3344-150-0x00000000052B5000-0x00000000052B7000-memory.dmp

Filesize
8KB

Download
memory/3344-161-0x0000000007E60000-0x0000000007E68000-memory.dmp

Filesize
32KB

Download
memory/3344-160-0x0000000007E80000-0x0000000007E9A000-memory.dmp

Filesize
104KB

Download
memory/3344-141-0x0000000005260000-0x0000000005296000-memory.dmp

Filesize
216KB

Download
memory/3344-142-0x00000000058F0000-0x0000000005F18000-memory.dmp

Filesize
6.2MB

Download
memory/3344-143-0x00000000060A0000-0x00000000060C2000-memory.dmp

Filesize
136KB

Download
memory/3344-144-0x0000000006140000-0x00000000061A6000-memory.dmp

Filesize
408KB

Download
memory/3344-159-0x0000000007D70000-0x0000000007D7E000-memory.dmp

Filesize
56KB

Download
memory/3344-146-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/3344-147-0x00000000052B0000-0x00000000052B1000-memory.dmp

Filesize
4KB

Download
memory/3344-148-0x00000000052B2000-0x00000000052B3000-memory.dmp

Filesize
4KB

Download
memory/3344-149-0x00000000055C0000-0x00000000055DE000-memory.dmp

Filesize
120KB

Download
memory/3344-158-0x0000000007DC0000-0x0000000007E56000-memory.dmp

Filesize
600KB

Download
memory/3344-151-0x0000000006E20000-0x0000000006E52000-memory.dmp

Filesize
200KB

Download
memory/3344-152-0x000000006FF80000-0x000000006FFCC000-memory.dmp

Filesize
304KB

Download
memory/3344-153-0x0000000006E00000-0x0000000006E1E000-memory.dmp

Filesize
120KB

Download
memory/3344-157-0x000000007EE40000-0x000000007EE41000-memory.dmp

Filesize
4KB

Download
memory/3344-155-0x0000000007B40000-0x0000000007B5A000-memory.dmp

Filesize
104KB

Download
memory/3344-156-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

Filesize
40KB

Download
memory/4484-137-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/4484-138-0x0000000005170000-0x000000000520C000-memory.dmp

Filesize
624KB

Download
memory/4484-145-0x0000000005210000-0x00000000057B4000-memory.dmp

Filesize
5.6MB

Download
memory/4484-140-0x00000000057C0000-0x0000000005D64000-memory.dmp

Filesize
5.6MB

Download
memory/4484-139-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/4484-162-0x0000000006940000-0x0000000006B02000-memory.dmp

Filesize
1.8MB

Download
memory/4484-163-0x0000000006810000-0x00000000068A2000-memory.dmp

Filesize
584KB

Download
memory/4484-164-0x00000000067C0000-0x00000000067CA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads