matiex | b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443

General

Target

b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Size

487KB
MD5

3daaf23db69dd1bbf65d601eda68dd3e
SHA1

9b4735376876302e9f06a9a4db30def3045917fe
SHA256

b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443
SHA512

c9cc18a3be6de8ab7bfb405410fa1ff95c3dbf0a47550efaa9aac90c53fdb39aac4681921f248c72eeaa0c4d156d45134ce79fc361fe2a226057bc96528825eb

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

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 6 IoCs

resource	yara_rule
behavioral1/memory/1996-60-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1996-61-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1996-62-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1996-63-0x000000000047064E-mapping.dmp	family_matiex
behavioral1/memory/1996-65-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1996-67-0x0000000000400000-0x0000000000476000-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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.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 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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

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

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1468 set thread context of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1548	1996	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
Token: SeDebugPrivilege	1996	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1468 wrote to memory of 1996	1468	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	29
PID 1996 wrote to memory of 1548	1996	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	30
PID 1996 wrote to memory of 1548	1996	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	30
PID 1996 wrote to memory of 1548	1996	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	30
PID 1996 wrote to memory of 1548	1996	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe

C:\Users\Admin\AppData\Local\Temp\b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
"C:\Users\Admin\AppData\Local\Temp\b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.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:1468
- C:\Users\Admin\AppData\Local\Temp\b097152c915056f81d69ceba4f124165b942c4b6d6c426aaa273c6d183dde443.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1996
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 1252
    3⤵
    - Program crash
    PID:1548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

2

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1468-54-0x0000000001120000-0x00000000011A0000-memory.dmp

Filesize
512KB

Download
memory/1468-55-0x0000000000CC0000-0x0000000000CDC000-memory.dmp

Filesize
112KB

Download
memory/1468-56-0x00000000052F0000-0x0000000005390000-memory.dmp

Filesize
640KB

Download
memory/1996-58-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-57-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-60-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-61-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-65-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1996-67-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads