matiex | 13be1472d477c26b68aa35a0912bdfd80fa71e31fe2a0042c736f4068f52ee13

General

Target

b785660dc88d6519d727f341e0063cd9.exe
Size

704KB
MD5

b785660dc88d6519d727f341e0063cd9
SHA1

d5c7558ae821f6f4a7e80ef5cc08fbe9a9b371ed
SHA256

13be1472d477c26b68aa35a0912bdfd80fa71e31fe2a0042c736f4068f52ee13
SHA512

0db8e301d6ec80a647559ea5cf2e77f8e422e6a4a0b07cd8260d64ce8038a537a55510ade5df16f0c8ce1ed03273b8efeb4fc80bad9cc9e3f550f8d6f7423c71
SSDEEP

12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZWpfb:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pcN

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Signatures

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

Matiex Main payload 1 IoCs

resource	yara_rule
behavioral2/memory/1916-139-0x0000000000400000-0x0000000000482000-memory.dmp	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
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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b785660dc88d6519d727f341e0063cd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b785660dc88d6519d727f341e0063cd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b785660dc88d6519d727f341e0063cd9.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	checkip.dyndns.org
11	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2988 set thread context of 1916	2988	b785660dc88d6519d727f341e0063cd9.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1544	1916	WerFault.exe	81

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2084	schtasks.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2988	b785660dc88d6519d727f341e0063cd9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1916	b785660dc88d6519d727f341e0063cd9.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 4808	2988	b785660dc88d6519d727f341e0063cd9.exe	80
PID 2988 wrote to memory of 4808	2988	b785660dc88d6519d727f341e0063cd9.exe	80
PID 2988 wrote to memory of 4808	2988	b785660dc88d6519d727f341e0063cd9.exe	80
PID 2988 wrote to memory of 1916	2988	b785660dc88d6519d727f341e0063cd9.exe	81
PID 2988 wrote to memory of 1916	2988	b785660dc88d6519d727f341e0063cd9.exe	81
PID 2988 wrote to memory of 1916	2988	b785660dc88d6519d727f341e0063cd9.exe	81
PID 4808 wrote to memory of 2084	4808	cmd.exe	82
PID 4808 wrote to memory of 2084	4808	cmd.exe	82
PID 4808 wrote to memory of 2084	4808	cmd.exe	82
PID 2988 wrote to memory of 1916	2988	b785660dc88d6519d727f341e0063cd9.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b785660dc88d6519d727f341e0063cd9.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b785660dc88d6519d727f341e0063cd9.exe

C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe
"C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\cmd.exe
  cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
    3⤵
    - Creates scheduled task(s)
    PID:2084
- C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe
  "C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 1612
    3⤵
    - Program crash
    PID:1544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1916 -ip 1916
1⤵
PID:4932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml

Filesize
1KB

MD5
4be752c56909c7493e070314682b2583

SHA1
43f400e45ae141dace48a2647fc1732acb669a97

SHA256
8ef8266aeb236c0387489b85ca4ea25481ca1575ec24d94a7458771e1d91177e

SHA512
ca4887ffbc436f01ea9c976ee22339f911ba38d02613991209fe4b972f397b91b091c2ead8ec9ac9e40b28a406f095190e33da91ba3db98807bec6eb4027ad71

Download Submit
memory/1916-137-0x00000000051B0000-0x000000000524C000-memory.dmp

Filesize
624KB

Download
memory/1916-138-0x0000000005800000-0x0000000005DA4000-memory.dmp

Filesize
5.6MB

Download
memory/1916-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1916-140-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/2988-135-0x0000000000CFA000-0x0000000000D00000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads