matiex | af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae

Analysis

max time kernel
142s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
24-03-2022 20:03

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General

Target

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Size

468KB
MD5

6d054ce190fd0da92b895d7cb5397b03
SHA1

3bd56aa669000a6c19223bda713dc313f8279771
SHA256

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae
SHA512

58697957dde090133d027b13a18d462c786ac41c11c32faef0b2751e30b37530e0ec9368c3beac6f4077e1d42f89a1a76eb95cacf3c93a2b0d5e8411fcec2e29

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

https://api.telegram.org/bot1428011164:AAFKIFGek20EZJPbNxOt7K2R-Cf-IiVGehs/sendMessage?chat_id=1280541017

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/408-138-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

Drops startup file 1 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AppData.url	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

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:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.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

36 checkip.dyndns.org
38 freegeoip.app
39 freegeoip.app

flow	ioc
36	checkip.dyndns.org
38	freegeoip.app
39	freegeoip.app

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	pid	process	target process
PID 4064 set thread context of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

pid	process
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exeaf5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	pid	process
Token: SeDebugPrivilege	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
Token: SeDebugPrivilege	408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exeaf5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

description	pid	process	target process
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 4064 wrote to memory of 408	4064	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
PID 408 wrote to memory of 3344	408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	netsh.exe
PID 408 wrote to memory of 3344	408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	netsh.exe
PID 408 wrote to memory of 3344	408	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.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	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

outlook_win_path 1 IoCs

Processes:

af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.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	af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe

C:\Users\Admin\AppData\Local\Temp\af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
"C:\Users\Admin\AppData\Local\Temp\af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4064

C:\Users\Admin\AppData\Local\Temp\af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe
"{path}"
2⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:408

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\af5294cacf991f14f15ce90f8be38188b54e46d4fd1d8f509f946d8cde3ef3ae.exe.log
MD5
ddde88120da5a6e61cf1c0d1fc3f5c99

SHA1
aef94de11f90c3e6a99478c03d24aa355a6d0e52

SHA256
353067996dbacb8d3ae38dcc754d06b92e34b8511ebe2fda8c2358bbf6b79924

SHA512
64994ad92b4751bf3d580ec683e9387d9f05fe44bcb80c343470e992ac793f94f4811ab7c4f2e7240d40d5fe49df8191b781ef994a7c30df1f80940c7b06e8bd

Download Submit
memory/408-137-0x0000000000000000-mapping.dmp

Download
memory/408-138-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/408-141-0x0000000006D20000-0x0000000006EE2000-memory.dmp

Filesize
1.8MB

Download
memory/3344-140-0x0000000000000000-mapping.dmp

Download
memory/4064-130-0x00000000006F0000-0x000000000076A000-memory.dmp

Filesize
488KB

Download
memory/4064-131-0x00000000057A0000-0x0000000005D44000-memory.dmp

Filesize
5.6MB

Download
memory/4064-132-0x0000000005100000-0x0000000005192000-memory.dmp

Filesize
584KB

Download
memory/4064-133-0x00000000051C0000-0x00000000051CA000-memory.dmp

Filesize
40KB

Download
memory/4064-134-0x0000000008D50000-0x000000000927C000-memory.dmp

Filesize
5.2MB

Download
memory/4064-135-0x00000000095F0000-0x000000000968C000-memory.dmp

Filesize
624KB

Download
memory/4064-136-0x00000000096B0000-0x0000000009716000-memory.dmp

Filesize
408KB

Download