matiex | 5267ff61c4ea8ae53b6c1566e90464e062db1f16704d04c4d1f6653e0a3ccc95

General

Target

ae7df639d022f1b5c905da288b7b96ec.exe
Size

796KB
MD5

ae7df639d022f1b5c905da288b7b96ec
SHA1

33ed97231b65d0c7388de55ff262f6c778b0e144
SHA256

5267ff61c4ea8ae53b6c1566e90464e062db1f16704d04c4d1f6653e0a3ccc95
SHA512

f3272dff37fae2e28e05d06d8e39da8c7f4b6f0f80af57a3c84f225c6259580e3a0a7356cdd81d966d059946487b03d1ee417f91fda228720e46cf51e5c8b7b0

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.metauxsud.com
Port:
587
Username:
mtoks@metauxsud.com
Password:
Tx$6#dMqO7up

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/1756-8-0x000000000046CA3E-mapping.dmp	family_matiex
behavioral1/memory/1756-7-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1756-9-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1756-10-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

936 cmd.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
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

10 freegeoip.app
11 freegeoip.app
5 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

ae7df639d022f1b5c905da288b7b96ec.exe

description pid process target process

PID 1916 set thread context of 1756 1916 ae7df639d022f1b5c905da288b7b96ec.exe ae7df639d022f1b5c905da288b7b96ec.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ae7df639d022f1b5c905da288b7b96ec.exe

pid process

1756 ae7df639d022f1b5c905da288b7b96ec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ae7df639d022f1b5c905da288b7b96ec.exeae7df639d022f1b5c905da288b7b96ec.exe

description pid process

Token: SeDebugPrivilege 1916 ae7df639d022f1b5c905da288b7b96ec.exe
Token: SeDebugPrivilege 1756 ae7df639d022f1b5c905da288b7b96ec.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ae7df639d022f1b5c905da288b7b96ec.exe

pid process

1756 ae7df639d022f1b5c905da288b7b96ec.exe

pid	process
936	cmd.exe

flow	ioc
10	freegeoip.app
11	freegeoip.app
5	checkip.dyndns.org

description	pid	process	target process
PID 1916 set thread context of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe

pid	process
1756	ae7df639d022f1b5c905da288b7b96ec.exe

description	pid	process
Token: SeDebugPrivilege	1916	ae7df639d022f1b5c905da288b7b96ec.exe
Token: SeDebugPrivilege	1756	ae7df639d022f1b5c905da288b7b96ec.exe

pid	process
1756	ae7df639d022f1b5c905da288b7b96ec.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

ae7df639d022f1b5c905da288b7b96ec.exeae7df639d022f1b5c905da288b7b96ec.execmd.exe

description	pid	process	target process
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1916 wrote to memory of 1756	1916	ae7df639d022f1b5c905da288b7b96ec.exe	ae7df639d022f1b5c905da288b7b96ec.exe
PID 1756 wrote to memory of 936	1756	ae7df639d022f1b5c905da288b7b96ec.exe	cmd.exe
PID 1756 wrote to memory of 936	1756	ae7df639d022f1b5c905da288b7b96ec.exe	cmd.exe
PID 1756 wrote to memory of 936	1756	ae7df639d022f1b5c905da288b7b96ec.exe	cmd.exe
PID 1756 wrote to memory of 936	1756	ae7df639d022f1b5c905da288b7b96ec.exe	cmd.exe
PID 936 wrote to memory of 692	936	cmd.exe	choice.exe
PID 936 wrote to memory of 692	936	cmd.exe	choice.exe
PID 936 wrote to memory of 692	936	cmd.exe	choice.exe
PID 936 wrote to memory of 692	936	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\ae7df639d022f1b5c905da288b7b96ec.exe
"C:\Users\Admin\AppData\Local\Temp\ae7df639d022f1b5c905da288b7b96ec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1916

C:\Users\Admin\AppData\Local\Temp\ae7df639d022f1b5c905da288b7b96ec.exe
"C:\Users\Admin\AppData\Local\Temp\ae7df639d022f1b5c905da288b7b96ec.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\ae7df639d022f1b5c905da288b7b96ec.exe"
3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\SysWOW64\choice.exe
choice /C Y /N /D Y /T 3
4⤵
PID:692

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/692-15-0x0000000000000000-mapping.dmp

Download
memory/936-14-0x0000000000000000-mapping.dmp

Download
memory/1756-8-0x000000000046CA3E-mapping.dmp

Download
memory/1756-7-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1756-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1756-10-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1756-11-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-3-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

Filesize
4KB

Download
memory/1916-5-0x0000000000920000-0x000000000093F000-memory.dmp

Filesize
124KB

Download
memory/1916-6-0x0000000000940000-0x000000000094D000-memory.dmp

Filesize
52KB

Download

Analysis

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