matiex | c744fe5aa2ab646ac1a0583348316b13bf7ad12435edeb658aa5e0f09e494b89

Resubmissions

03/02/2022, 14:53

220203-r9cm5aafd810

28/01/2022, 20:48

220128-zlgaeadef810

Analysis

max time kernel
152s
max time network
155s
platform
windows7_x64
resource
win7-en-20211208
submitted
28/01/2022, 20:48

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General

Target
FACTURA-9vUVHazo9RuSJpH.exe
Size 1.1MB
Sample220128-zlgaeadef8
SHA256 c744fe5aa2ab646ac1a0583348316b13bf7ad12435edeb658aa5e0f09e494b89
MD5 92955191ebfb02ef2f3fe33dbd6094ca
SHA1 2fecac06772d210574f44bfef91aeae8f0860a31
SHA512 77d0354e0ba06d826810e50bd78898da79efe102ece81eac3fdd46cd60c57f8c9192ea805f945c1d76181d524eb859409bcc82ea7143a5d4f8a210e737540b01
MD5 SHA1 SHA512

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol
smtp
Host
serv3.devmexico.com
Port
587
Username
[email protected]
Password
3}l^pI#_4K_!
Email to
[email protected]

Signatures

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

Matiex Main Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1444-61-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1444-62-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1444-63-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1444-64-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

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 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1504 set thread context of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1504	FACTURA-9vUVHazo9RuSJpH.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	FACTURA-9vUVHazo9RuSJpH.exe
Token: SeDebugPrivilege	1444	FACTURA-9vUVHazo9RuSJpH.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1552	1504	FACTURA-9vUVHazo9RuSJpH.exe	29
PID 1504 wrote to memory of 1552	1504	FACTURA-9vUVHazo9RuSJpH.exe	29
PID 1504 wrote to memory of 1552	1504	FACTURA-9vUVHazo9RuSJpH.exe	29
PID 1504 wrote to memory of 1552	1504	FACTURA-9vUVHazo9RuSJpH.exe	29
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30
PID 1504 wrote to memory of 1444	1504	FACTURA-9vUVHazo9RuSJpH.exe	30

C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe
"C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe
  "C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"
  2⤵
  PID:1552
- C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe
  "C:\Users\Admin\AppData\Local\Temp\FACTURA-9vUVHazo9RuSJpH.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1444-59-0x0000000000400000-0x0000000000472000-memory.dmp

Download

memory/1444-60-0x0000000000400000-0x0000000000472000-memory.dmp

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memory/1444-61-0x0000000000400000-0x0000000000472000-memory.dmp

Download

memory/1444-62-0x0000000000400000-0x0000000000472000-memory.dmp

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memory/1444-63-0x0000000000400000-0x0000000000472000-memory.dmp

Download

memory/1444-64-0x0000000000400000-0x0000000000472000-memory.dmp

Download

memory/1444-66-0x0000000004E70000-0x0000000004E71000-memory.dmp

Download

memory/1504-54-0x0000000000B80000-0x0000000000C9A000-memory.dmp

Download

memory/1504-55-0x0000000076451000-0x0000000076453000-memory.dmp

Download

memory/1504-56-0x0000000004D90000-0x0000000004D91000-memory.dmp

Download

memory/1504-57-0x00000000004B0000-0x00000000004BC000-memory.dmp

Download

memory/1504-58-0x0000000005070000-0x0000000005128000-memory.dmp

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