matiex | df91447ed007ba1a6b2a3e5044308148057b8f3b0f5b2a1924cba385465b0400

General

Target

55bb2cff10f762602d4fc547746b74fd.exe
Size

576KB
MD5

55bb2cff10f762602d4fc547746b74fd
SHA1

53f34a1209ada980185fede8b5b68bd9a3bb7af3
SHA256

df91447ed007ba1a6b2a3e5044308148057b8f3b0f5b2a1924cba385465b0400
SHA512

daa333192cc35fbcca5154980cc14f6d8771341e9e719d6063ada119c94232af2f7474bb1b1a828a10b950318370cab3ab23a7333ee805ead640f4ba1ebec014
SSDEEP

12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZo:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pc5

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

Processes:

resource	yara_rule
behavioral2/memory/1684-137-0x0000000000400000-0x0000000000482000-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

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	55bb2cff10f762602d4fc547746b74fd.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	55bb2cff10f762602d4fc547746b74fd.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	55bb2cff10f762602d4fc547746b74fd.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

6 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

description pid process target process

PID 2444 set thread context of 1684 2444 55bb2cff10f762602d4fc547746b74fd.exe 55bb2cff10f762602d4fc547746b74fd.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3740 1684 WerFault.exe 55bb2cff10f762602d4fc547746b74fd.exe
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

Processes:

schtasks.exe

pid process

624 schtasks.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

pid process

2444 55bb2cff10f762602d4fc547746b74fd.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

description pid process

Token: SeDebugPrivilege 1684 55bb2cff10f762602d4fc547746b74fd.exe

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

description	pid	process	target process
PID 2444 set thread context of 1684	2444	55bb2cff10f762602d4fc547746b74fd.exe	55bb2cff10f762602d4fc547746b74fd.exe

pid	pid_target	process	target process
3740	1684	WerFault.exe	55bb2cff10f762602d4fc547746b74fd.exe

pid	process
624	schtasks.exe

pid	process
2444	55bb2cff10f762602d4fc547746b74fd.exe

description	pid	process
Token: SeDebugPrivilege	1684	55bb2cff10f762602d4fc547746b74fd.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.execmd.exe

description	pid	process	target process
PID 2444 wrote to memory of 1124	2444	55bb2cff10f762602d4fc547746b74fd.exe	cmd.exe
PID 2444 wrote to memory of 1124	2444	55bb2cff10f762602d4fc547746b74fd.exe	cmd.exe
PID 2444 wrote to memory of 1124	2444	55bb2cff10f762602d4fc547746b74fd.exe	cmd.exe
PID 2444 wrote to memory of 1684	2444	55bb2cff10f762602d4fc547746b74fd.exe	55bb2cff10f762602d4fc547746b74fd.exe
PID 2444 wrote to memory of 1684	2444	55bb2cff10f762602d4fc547746b74fd.exe	55bb2cff10f762602d4fc547746b74fd.exe
PID 2444 wrote to memory of 1684	2444	55bb2cff10f762602d4fc547746b74fd.exe	55bb2cff10f762602d4fc547746b74fd.exe
PID 1124 wrote to memory of 624	1124	cmd.exe	schtasks.exe
PID 1124 wrote to memory of 624	1124	cmd.exe	schtasks.exe
PID 1124 wrote to memory of 624	1124	cmd.exe	schtasks.exe
PID 2444 wrote to memory of 1684	2444	55bb2cff10f762602d4fc547746b74fd.exe	55bb2cff10f762602d4fc547746b74fd.exe

outlook_office_path 1 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	55bb2cff10f762602d4fc547746b74fd.exe

outlook_win_path 1 IoCs

Processes:

55bb2cff10f762602d4fc547746b74fd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	55bb2cff10f762602d4fc547746b74fd.exe

C:\Users\Admin\AppData\Local\Temp\55bb2cff10f762602d4fc547746b74fd.exe
"C:\Users\Admin\AppData\Local\Temp\55bb2cff10f762602d4fc547746b74fd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2444

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:1124

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
3⤵
- Creates scheduled task(s)
PID:624

C:\Users\Admin\AppData\Local\Temp\55bb2cff10f762602d4fc547746b74fd.exe
"C:\Users\Admin\AppData\Local\Temp\55bb2cff10f762602d4fc547746b74fd.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1904
3⤵
- Program crash
PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1684 -ip 1684
1⤵
PID:3024

Network

MITRE ATT&CK Matrix ATT&CK 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

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

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

MD5
284af8cf030ab5d0003cf68a44204bc5

SHA1
4010bf27e5ce1177ac18fac30b5c1d6ac6a51cf5

SHA256
97024db9c8cab0b562c8dbabfd8bfc615d99af32c00fe1e81084ca2c262a43f4

SHA512
19cb855bb03da299d77bbfc28d41710c57013d7de5dcd55b70dc0af9a8799ad3472386c9375103a5bb7ccc1d51759fb188e0b3a7d96a8ab918bf341e7f6e1cd4

Download Submit
memory/624-134-0x0000000000000000-mapping.dmp

Download
memory/1124-132-0x0000000000000000-mapping.dmp

Download
memory/1684-133-0x0000000000000000-mapping.dmp

Download
memory/1684-137-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1684-138-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/1684-139-0x0000000006000000-0x00000000065A4000-memory.dmp

Filesize
5.6MB

Download
memory/1684-140-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/2444-135-0x000000000032A000-0x0000000000330000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads