matiex | ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340

General

Target

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
Size

963KB
MD5

99d104f5701496f3e10e96cfa898a50d
SHA1

6f83c38fcb9c2fecc06875854ea9e3cd91d3a973
SHA256

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340
SHA512

3285507f051a27eb1f37e774ea004ccb28ab94fa764ca0a45c06d4d6ed8c9b02be7a5e11749f721ac4f115296e32cc4308b90b91d1e94663beef9809f8788eec

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
ze5qw@iC?1E}

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/1940-142-0x00000000007A0000-0x0000000000810000-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
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:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.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.

Processes:

flow ioc

62 checkip.dyndns.org

flow	ioc
62	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	pid	process	target process
PID 4968 set thread context of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

pid process

4968 ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

pid	process
4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exeac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	pid	process
Token: SeDebugPrivilege	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
Token: SeDebugPrivilege	1940	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	pid	process	target process
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
PID 4968 wrote to memory of 1940	4968	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

outlook_office_path 1 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

outlook_win_path 1 IoCs

Processes:

ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe

C:\Users\Admin\AppData\Local\Temp\ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
"C:\Users\Admin\AppData\Local\Temp\ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968

C:\Users\Admin\AppData\Local\Temp\ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe
"C:\Users\Admin\AppData\Local\Temp\ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1940

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ac755e035a8d5d91395277e4283d83198e820d743924698b863439aa8a82a340.exe.log
Filesize
2KB

MD5
357aad94d4a7186627f07c15a2515884

SHA1
e015cf0f1847ebf6cef713708c46497b55c3915e

SHA256
fb832528cf0821386053da4e7b42ced00f4c2a6c32c409d273f7c1fb21ff9022

SHA512
9b643adfa4642ceba9274cf234674a57fdebc980aa3ec6c72d66adf42195e669a828017619cd975a90b9da7bae18674633a1618085272b694bc380c485f37961

Download Submit
memory/1940-139-0x0000000000000000-mapping.dmp

Download
memory/1940-143-0x00000000062C0000-0x00000000062CA000-memory.dmp

Filesize
40KB

Download
memory/1940-142-0x00000000007A0000-0x0000000000810000-memory.dmp

Filesize
448KB

Download
memory/4968-133-0x0000000009AE0000-0x0000000009B72000-memory.dmp

Filesize
584KB

Download
memory/4968-135-0x0000000005C40000-0x0000000005E02000-memory.dmp

Filesize
1.8MB

Download
memory/4968-136-0x0000000006540000-0x0000000006A6C000-memory.dmp

Filesize
5.2MB

Download
memory/4968-137-0x0000000005B30000-0x0000000005B52000-memory.dmp

Filesize
136KB

Download
memory/4968-138-0x0000000004FB0000-0x0000000004FD2000-memory.dmp

Filesize
136KB

Download
memory/4968-134-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/4968-130-0x0000000000070000-0x0000000000166000-memory.dmp

Filesize
984KB

Download
memory/4968-132-0x0000000009E60000-0x000000000A404000-memory.dmp

Filesize
5.6MB

Download
memory/4968-131-0x0000000004B50000-0x0000000004BEC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads