matiex | a80660a551d427bd67935c0380d3edca52a17a57005dde154ba2acfd29bebade

General

Target

f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
Size

1.5MB
MD5

f5142955783a16ea5957a10c51e64f33
SHA1

c843043f0b39623bf0862f8460b669c923b4c2e9
SHA256

a80660a551d427bd67935c0380d3edca52a17a57005dde154ba2acfd29bebade
SHA512

e214ac6ba2d3cb4d9b6c77fc7ce87345d196542f50531d93b103803b5f5c16c4bb59424325ad8ccbf7095af6db1428c4ffea489287aa73aae2358734913870b5
SSDEEP

24576:lUkmlW5oaXpcB7mVSaccPuvcd5OGQT/1/0nS+7n4SYwqK4zf3RTsAHWAgqChJ+ho:6eiec6kqn2dpsNQuiNB/e

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

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

Signatures

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

Matiex Main payload 7 IoCs

resource	yara_rule
behavioral1/memory/2848-10-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2848-11-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2848-14-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2848-17-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2848-19-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/2848-21-0x0000000000650000-0x0000000000690000-memory.dmp	family_matiex
behavioral1/memory/2848-23-0x0000000000650000-0x0000000000690000-memory.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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.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.

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1600 set thread context of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1608	2848	WerFault.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
Token: SeDebugPrivilege	2848	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 1600 wrote to memory of 2848	1600	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	30
PID 2848 wrote to memory of 1608	2848	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	32
PID 2848 wrote to memory of 1608	2848	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	32
PID 2848 wrote to memory of 1608	2848	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	32
PID 2848 wrote to memory of 1608	2848	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f5142955783a16ea5957a10c51e64f33_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 1236
    3⤵
    - Program crash
    PID:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1600-16-0x0000000074590000-0x0000000074C7E000-memory.dmp

Filesize
6.9MB

Download
memory/1600-4-0x0000000074590000-0x0000000074C7E000-memory.dmp

Filesize
6.9MB

Download
memory/1600-0-0x00000000009D0000-0x0000000000B4C000-memory.dmp

Filesize
1.5MB

Download
memory/1600-3-0x0000000000530000-0x0000000000566000-memory.dmp

Filesize
216KB

Download
memory/1600-1-0x0000000074590000-0x0000000074C7E000-memory.dmp

Filesize
6.9MB

Download
memory/1600-5-0x0000000002200000-0x0000000002240000-memory.dmp

Filesize
256KB

Download
memory/1600-6-0x0000000005190000-0x000000000521E000-memory.dmp

Filesize
568KB

Download
memory/1600-7-0x0000000005A90000-0x0000000005B04000-memory.dmp

Filesize
464KB

Download
memory/1600-2-0x0000000002200000-0x0000000002240000-memory.dmp

Filesize
256KB

Download
memory/2848-9-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-8-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-11-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-14-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-10-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-19-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2848-20-0x0000000074590000-0x0000000074C7E000-memory.dmp

Filesize
6.9MB

Download
memory/2848-21-0x0000000000650000-0x0000000000690000-memory.dmp

Filesize
256KB

Download
memory/2848-22-0x0000000074590000-0x0000000074C7E000-memory.dmp

Filesize
6.9MB

Download
memory/2848-23-0x0000000000650000-0x0000000000690000-memory.dmp

Filesize
256KB

Download

Analysis

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