matiex | 8dd97dc341e72b4830a7375c3e51de56ac35b91a31498d2dbeba929846d6129e

General

Target

wCRnCAMZ3yT8BQ2.exe
Size

938KB
MD5

2363f93331fc792ae9cb5750043bdc89
SHA1

2fc0b7b4106a28ffe7f63f36ff64fe045e8f7daa
SHA256

08c29dfa0ccb747751c5ff3ccde88f7f8a5a87152121f75f60a886b14e86bf00
SHA512

a4a47c39e03c22844725b51ffd56f3ae01e9095733e8442eaba1fcf0e3a0e1edb127a6bf4b5ab8063614829db27919dea5a0e62f9e7d320e625fc498a603ad3e

Score

10^/10

matiex keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
MARYolanmauluogwo@ever

Signatures

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

Matiex Main Payload 4 IoCs

Processes:

resource	yara_rule
behavioral7/memory/1132-62-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1132-63-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1132-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral7/memory/1132-65-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

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

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

Processes:

wCRnCAMZ3yT8BQ2.exe

description pid process target process

PID 840 set thread context of 1132 840 wCRnCAMZ3yT8BQ2.exe wCRnCAMZ3yT8BQ2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

1216 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

wCRnCAMZ3yT8BQ2.exewCRnCAMZ3yT8BQ2.exe

description pid process

Token: SeDebugPrivilege 840 wCRnCAMZ3yT8BQ2.exe
Token: SeDebugPrivilege 1132 wCRnCAMZ3yT8BQ2.exe

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

description	pid	process	target process
PID 840 set thread context of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe

pid	process
1216	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	840	wCRnCAMZ3yT8BQ2.exe
Token: SeDebugPrivilege	1132	wCRnCAMZ3yT8BQ2.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

wCRnCAMZ3yT8BQ2.exe

description	pid	process	target process
PID 840 wrote to memory of 1216	840	wCRnCAMZ3yT8BQ2.exe	schtasks.exe
PID 840 wrote to memory of 1216	840	wCRnCAMZ3yT8BQ2.exe	schtasks.exe
PID 840 wrote to memory of 1216	840	wCRnCAMZ3yT8BQ2.exe	schtasks.exe
PID 840 wrote to memory of 1216	840	wCRnCAMZ3yT8BQ2.exe	schtasks.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe
PID 840 wrote to memory of 1132	840	wCRnCAMZ3yT8BQ2.exe	wCRnCAMZ3yT8BQ2.exe

C:\Users\Admin\AppData\Local\Temp\wCRnCAMZ3yT8BQ2.exe
"C:\Users\Admin\AppData\Local\Temp\wCRnCAMZ3yT8BQ2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:840

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uXbGRRvcbY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7DA8.tmp"
2⤵
- Creates scheduled task(s)
PID:1216

C:\Users\Admin\AppData\Local\Temp\wCRnCAMZ3yT8BQ2.exe
"{path}"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1132

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7DA8.tmp

MD5
4e5739f3d0977d3af9cffcea6464bbea

SHA1
4ab331f31e5134f99a8109a40ac8fbb195713c8f

SHA256
4caa684b677aeb889a44f33d63b63ce4e95772a15858fbcef0636bae6d34ef0c

SHA512
d416fa10256640c90414e5dc9bbef7da84c82b36e58575cbc8ca59c184c02f3ef81bf9d1a7b7efdfd0db1b5be33de75dc40472cddd6e0be85d23097441a1e624

Download Submit
memory/840-54-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/840-55-0x0000000001200000-0x00000000012F0000-memory.dmp

Filesize
960KB

Download
memory/840-56-0x00000000011C0000-0x00000000011C1000-memory.dmp

Filesize
4KB

Download
memory/840-57-0x0000000000570000-0x0000000000584000-memory.dmp

Filesize
80KB

Download
memory/840-58-0x00000000056D0000-0x00000000057B6000-memory.dmp

Filesize
920KB

Download
memory/1132-60-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-61-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-64-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-65-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1132-66-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/1132-67-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads