matiex | 0e9b75e527544aa8db9880eb423b73f0edfb79995be585eb2d69c735068d082e

General

Target

8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
Size

908KB
MD5

8988b694b9df9186d686b9479984c675
SHA1

d54c8e34344c3b86cc883c2ffa89d020c0911755
SHA256

0e9b75e527544aa8db9880eb423b73f0edfb79995be585eb2d69c735068d082e
SHA512

72352807711c2a1799920fdc934ab3aaa1730b718447c8c70fefebb3c7243941feeb9c05f2eced48358ca114df789e97ad3be160b766e773312535de27d6e4c6
SSDEEP

12288:Y7KAD7WCSbo4N2So9pGwINUbKbSZTlWxYGNhCJh7EW58M8zOGcbq1TT6ygvhNwEc:eK+Ms9fAkvhS+c9

Score

10^/10

matiex collection credential_access discovery keylogger spyware stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

Signatures

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

Matiex Main payload 5 IoCs

resource	yara_rule
behavioral1/memory/2496-11-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/2496-8-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/2496-7-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/2496-15-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/2496-13-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Matiex family
matiex
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8988b694b9df9186d686b9479984c675_JaffaCakes118.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2432 set thread context of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2560	2496	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2432 wrote to memory of 2496	2432	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	31
PID 2496 wrote to memory of 2560	2496	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	33
PID 2496 wrote to memory of 2560	2496	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	33
PID 2496 wrote to memory of 2560	2496	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	33
PID 2496 wrote to memory of 2560	2496	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8988b694b9df9186d686b9479984c675_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8988b694b9df9186d686b9479984c675_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\8988b694b9df9186d686b9479984c675_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8988b694b9df9186d686b9479984c675_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 1464
    3⤵
    - Program crash
    PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2432-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

Filesize
4KB

Download
memory/2432-1-0x0000000000D00000-0x0000000000DEA000-memory.dmp

Filesize
936KB

Download
memory/2432-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2432-3-0x00000000004B0000-0x0000000000516000-memory.dmp

Filesize
408KB

Download
memory/2432-4-0x0000000000450000-0x0000000000466000-memory.dmp

Filesize
88KB

Download
memory/2432-16-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-8-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2496-11-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-7-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-6-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-15-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-17-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-5-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-13-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2496-18-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-19-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-20-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-21-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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