matiex | e58284d351b21f134a31fdccd3e53f952133f671892da8a86347d7b930399f28

General

Target

QYD Quotation 20210702.exe
Size

1.1MB
MD5

494fc5838b2ff1381ab5d806cf7820a2
SHA1

d7ec8bb026fe526535ed556936ec057409fb00fa
SHA256

e58284d351b21f134a31fdccd3e53f952133f671892da8a86347d7b930399f28
SHA512

1c18d8524f0aecd4b4dfb2518de69c94362c23c60b3bc2e7229e6b06a9ed6e559212d97f740f4675c028cc5c5f9ab12b51d21589a42656232e207d2866120821

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989

Signatures

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

Matiex Main Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3956-126-0x0000000000400000-0x0000000000474000-memory.dmp	family_matiex
behavioral2/memory/3956-127-0x000000000046E07E-mapping.dmp	family_matiex

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.

flow	ioc
16	freegeoip.app
17	freegeoip.app
14	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3560 set thread context of 3956	3560	QYD Quotation 20210702.exe	80

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2376	schtasks.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\ms-settings\shell	QYD Quotation 20210702.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\ms-settings\shell\open	QYD Quotation 20210702.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\ms-settings\shell\open\command\	QYD Quotation 20210702.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\ms-settings\shell\open\command	QYD Quotation 20210702.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\ms-settings	QYD Quotation 20210702.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3956	QYD Quotation 20210702.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3956	QYD Quotation 20210702.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	QYD Quotation 20210702.exe
Token: SeDebugPrivilege	3956	QYD Quotation 20210702.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 2376	3560	QYD Quotation 20210702.exe	78
PID 3560 wrote to memory of 2376	3560	QYD Quotation 20210702.exe	78
PID 3560 wrote to memory of 2376	3560	QYD Quotation 20210702.exe	78
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3560 wrote to memory of 3956	3560	QYD Quotation 20210702.exe	80
PID 3956 wrote to memory of 1308	3956	QYD Quotation 20210702.exe	82
PID 3956 wrote to memory of 1308	3956	QYD Quotation 20210702.exe	82
PID 3956 wrote to memory of 1308	3956	QYD Quotation 20210702.exe	82

C:\Users\Admin\AppData\Local\Temp\QYD Quotation 20210702.exe
"C:\Users\Admin\AppData\Local\Temp\QYD Quotation 20210702.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DQuUJXrfqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8581.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2376
- C:\Users\Admin\AppData\Local\Temp\QYD Quotation 20210702.exe
  "{path}"
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1308

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3560-123-0x000000000ABE0000-0x000000000AC8A000-memory.dmp

Filesize
680KB

Download
memory/3560-117-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

Filesize
4KB

Download
memory/3560-121-0x00000000080D0000-0x00000000080D1000-memory.dmp

Filesize
4KB

Download
memory/3560-122-0x0000000006770000-0x0000000006826000-memory.dmp

Filesize
728KB

Download
memory/3560-114-0x0000000000010000-0x0000000000011000-memory.dmp

Filesize
4KB

Download
memory/3560-119-0x0000000004A10000-0x0000000004AA2000-memory.dmp

Filesize
584KB

Download
memory/3560-118-0x0000000004C30000-0x0000000004C31000-memory.dmp

Filesize
4KB

Download
memory/3560-120-0x0000000008020000-0x0000000008022000-memory.dmp

Filesize
8KB

Download
memory/3560-116-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download
memory/3956-126-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/3956-133-0x0000000005840000-0x0000000005841000-memory.dmp

Filesize
4KB

Download
memory/3956-134-0x0000000001970000-0x0000000001971000-memory.dmp

Filesize
4KB

Download
memory/3956-136-0x0000000007200000-0x0000000007201000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads