matiex | d8924e2835e52e70b5c4fa4fa0a91e9b06776f778d065d62773a4564586d486c

General

Target

b4fd099f95248286fb005d5fc93399d9.exe
Size

477KB
MD5

b4fd099f95248286fb005d5fc93399d9
SHA1

4fca12d0d25a2115b5958de3aa9830f36361fbbb
SHA256

d8924e2835e52e70b5c4fa4fa0a91e9b06776f778d065d62773a4564586d486c
SHA512

05c742c18b03adb4153f1f921311f4aaba01ddc04cd329a8079bd9b56db46ab45cfae32c7a88db3becde49f76859a6c24452fa6dbd1c1738bb0d59e8aa45f2ef

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1474029845:AAESF02q0JZytndFFaKINAGOHrylDk8NpJA/sendMessage?chat_id=1481651786

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/3136-139-0x0000000000400000-0x0000000000476000-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:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b4fd099f95248286fb005d5fc93399d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4fd099f95248286fb005d5fc93399d9.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:

b4fd099f95248286fb005d5fc93399d9.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	b4fd099f95248286fb005d5fc93399d9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b4fd099f95248286fb005d5fc93399d9.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

26 checkip.dyndns.org
30 freegeoip.app
31 freegeoip.app

flow	ioc
26	checkip.dyndns.org
30	freegeoip.app
31	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:

b4fd099f95248286fb005d5fc93399d9.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b4fd099f95248286fb005d5fc93399d9.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

description pid process target process

PID 2820 set thread context of 3136 2820 b4fd099f95248286fb005d5fc93399d9.exe b4fd099f95248286fb005d5fc93399d9.exe

description	pid	process	target process
PID 2820 set thread context of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

pid	process
2820	b4fd099f95248286fb005d5fc93399d9.exe
2820	b4fd099f95248286fb005d5fc93399d9.exe
2820	b4fd099f95248286fb005d5fc93399d9.exe
2820	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe
3136	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

description pid process

Token: SeDebugPrivilege 2820 b4fd099f95248286fb005d5fc93399d9.exe
Token: SeDebugPrivilege 3136 b4fd099f95248286fb005d5fc93399d9.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exe

pid process

3136 b4fd099f95248286fb005d5fc93399d9.exe

description	pid	process
Token: SeDebugPrivilege	2820	b4fd099f95248286fb005d5fc93399d9.exe
Token: SeDebugPrivilege	3136	b4fd099f95248286fb005d5fc93399d9.exe

pid	process
3136	b4fd099f95248286fb005d5fc93399d9.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.exeb4fd099f95248286fb005d5fc93399d9.exe

description	pid	process	target process
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 2820 wrote to memory of 3136	2820	b4fd099f95248286fb005d5fc93399d9.exe	b4fd099f95248286fb005d5fc93399d9.exe
PID 3136 wrote to memory of 4660	3136	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe
PID 3136 wrote to memory of 4660	3136	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe
PID 3136 wrote to memory of 4660	3136	b4fd099f95248286fb005d5fc93399d9.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.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	b4fd099f95248286fb005d5fc93399d9.exe

outlook_win_path 1 IoCs

Processes:

b4fd099f95248286fb005d5fc93399d9.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	b4fd099f95248286fb005d5fc93399d9.exe

C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe
"C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820

C:\Users\Admin\AppData\Local\Temp\b4fd099f95248286fb005d5fc93399d9.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3136

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:4660

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b4fd099f95248286fb005d5fc93399d9.exe.log
MD5
531595e2b5f12461e210c410faf46d37

SHA1
4c163e51d2a43c5514f4064dd3bc9e9470ed752c

SHA256
40b7c802bfe6623c91a471cb1525738c9bc6e38125d3ea4c73b26f468ca83b51

SHA512
ac815c417c53b6a04415f022655ee4fe014f9f80c540b0b595e3dfc4e744458c2eaee5d535a14bc488a27afb5b53e5289eca23434fd1ba10ae231ae6678d1e6b

Download Submit
memory/2820-136-0x000000000ADE0000-0x000000000B30C000-memory.dmp

Filesize
5.2MB

Download
memory/2820-138-0x0000000007F90000-0x0000000007FF6000-memory.dmp

Filesize
408KB

Download
memory/2820-133-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/2820-134-0x0000000005930000-0x000000000593A000-memory.dmp

Filesize
40KB

Download
memory/2820-135-0x0000000005680000-0x0000000005681000-memory.dmp

Filesize
4KB

Download
memory/2820-130-0x0000000000AB0000-0x0000000000B32000-memory.dmp

Filesize
520KB

Download
memory/2820-137-0x00000000065C0000-0x000000000665C000-memory.dmp

Filesize
624KB

Download
memory/2820-132-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/2820-131-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/3136-139-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3136-142-0x00000000055F0000-0x00000000055F1000-memory.dmp

Filesize
4KB

Download
memory/3136-141-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/3136-143-0x0000000007230000-0x00000000073F2000-memory.dmp

Filesize
1.8MB

Download
memory/3136-144-0x00000000055F3000-0x00000000055F5000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads