matiex | b9d37ce3380de623e8225b466fcd061db7f7828a2e39deace159e5c7f3455015

General

Target

Revised Invoice.exe
Size

579KB
MD5

cbfb94a41abae103511d729b00687c7a
SHA1

f491f44fbbaafb97275cc90ecaa37926534a6151
SHA256

b9d37ce3380de623e8225b466fcd061db7f7828a2e39deace159e5c7f3455015
SHA512

77bfe24a4b0dcc0badcf0b33fd1da5335fadf0e366db4411b0ca130fecefa288006c06cf5bf363edd1b038619e1f8654e0e88020c454e4b0399d906c17128a59

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
igbrusure@gmail.com
Password:
mrruben0094

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
igbrusure@gmail.com
Password:
mrruben0094

Signatures

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

Matiex Main Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1652-34-0x000000000046DDEE-mapping.dmp	family_matiex
behavioral1/memory/1652-33-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral1/memory/1652-36-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Drops startup file 2 IoCs

Processes:

pOwERsHeLl.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	pOwERsHeLl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	pOwERsHeLl.exe

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
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

5 checkip.dyndns.org
10 freegeoip.app
11 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

Revised Invoice.exe

description pid process target process

PID 1340 set thread context of 1652 1340 Revised Invoice.exe Revised Invoice.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

pOwERsHeLl.exeRevised Invoice.exe

pid process

1696 pOwERsHeLl.exe
1696 pOwERsHeLl.exe
1652 Revised Invoice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

pOwERsHeLl.exeRevised Invoice.exe

description pid process

Token: SeDebugPrivilege 1696 pOwERsHeLl.exe
Token: SeDebugPrivilege 1652 Revised Invoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Revised Invoice.exe

pid process

1652 Revised Invoice.exe

flow	ioc
5	checkip.dyndns.org
10	freegeoip.app
11	freegeoip.app

description	pid	process	target process
PID 1340 set thread context of 1652	1340	Revised Invoice.exe	Revised Invoice.exe

pid	process
1696	pOwERsHeLl.exe
1696	pOwERsHeLl.exe
1652	Revised Invoice.exe

description	pid	process
Token: SeDebugPrivilege	1696	pOwERsHeLl.exe
Token: SeDebugPrivilege	1652	Revised Invoice.exe

pid	process
1652	Revised Invoice.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Revised Invoice.exe

description	pid	process	target process
PID 1340 wrote to memory of 1696	1340	Revised Invoice.exe	pOwERsHeLl.exe
PID 1340 wrote to memory of 1696	1340	Revised Invoice.exe	pOwERsHeLl.exe
PID 1340 wrote to memory of 1696	1340	Revised Invoice.exe	pOwERsHeLl.exe
PID 1340 wrote to memory of 1696	1340	Revised Invoice.exe	pOwERsHeLl.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe
PID 1340 wrote to memory of 1652	1340	Revised Invoice.exe	Revised Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Revised Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Revised Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\pOwERsHeLl.exe
"pOwERsHeLl.exe" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Revised Invoice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1696

C:\Users\Admin\AppData\Local\Temp\Revised Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Revised Invoice.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1652

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1340-32-0x00000000005D0000-0x00000000005DF000-memory.dmp

Filesize
60KB

Download
memory/1340-3-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/1340-2-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/1340-10-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/1652-39-0x0000000005675000-0x0000000005686000-memory.dmp

Filesize
68KB

Download
memory/1652-38-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/1652-36-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1652-35-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-33-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1652-34-0x000000000046DDEE-mapping.dmp

Download
memory/1696-9-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/1696-13-0x0000000002580000-0x0000000002581000-memory.dmp

Filesize
4KB

Download
memory/1696-17-0x00000000056A0000-0x00000000056A1000-memory.dmp

Filesize
4KB

Download
memory/1696-22-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/1696-23-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1696-24-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/1696-31-0x0000000006240000-0x0000000006241000-memory.dmp

Filesize
4KB

Download
memory/1696-14-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1696-11-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/1696-12-0x00000000025D2000-0x00000000025D3000-memory.dmp

Filesize
4KB

Download
memory/1696-8-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/1696-7-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/1696-6-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

Download
memory/1696-5-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads