matiex | 7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63

General

Target

7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe
Size

187KB
MD5

3f6af7853bb4ccf152c7034aa908fa71
SHA1

698a08dc0ae407391b20b304f49e09bfd29c4193
SHA256

7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63
SHA512

2cfc51f46c0e97d1b28f9762fb7843c5bcbab8f01fadbc19c0760dea12391c95f6f7874ff29732bbaeec6eca251c15941d6e19152dcae024dec19d1d4675ec26

Score

10^/10

matiex evasion keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Goodness123x

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
C:\Users\Admin\AppData\Local\Temp\ab.exe	family_matiex
C:\Users\Admin\AppData\Local\Temp\ab.exe	family_matiex
behavioral2/memory/4260-133-0x0000000000980000-0x00000000009F8000-memory.dmp	family_matiex

Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

ab.exe

pid process

4260 ab.exe

pid	process
4260	ab.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.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

36 checkip.dyndns.org
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4700 4260 WerFault.exe ab.exe

flow	ioc
36	checkip.dyndns.org

pid	pid_target	process	target process
4700	4260	WerFault.exe	ab.exe

Modifies registry class 5 IoCs

Processes:

ab.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\ms-settings\shell	ab.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\ms-settings\shell\open	ab.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\ms-settings\shell\open\command\	ab.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\ms-settings\shell\open\command	ab.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\ms-settings	ab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ab.exe

description pid process

Token: SeDebugPrivilege 4260 ab.exe

description	pid	process
Token: SeDebugPrivilege	4260	ab.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe

description	pid	process	target process
PID 2084 wrote to memory of 4260	2084	7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe	ab.exe
PID 2084 wrote to memory of 4260	2084	7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe	ab.exe
PID 2084 wrote to memory of 4260	2084	7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe	ab.exe

C:\Users\Admin\AppData\Local\Temp\7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe
"C:\Users\Admin\AppData\Local\Temp\7ab64e35c5907423159e5257e38154b671c88b9b96808ae73c8dff6b9ae9ed63.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2084

C:\Users\Admin\AppData\Local\Temp\ab.exe
"C:\Users\Admin\AppData\Local\Temp\ab.exe"
2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:4260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 1896
3⤵
- Program crash
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4260 -ip 4260
1⤵
PID:4612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ab.exe
Filesize
454KB

MD5
c3708a21241b7b529452b90d104e2cbf

SHA1
b97239286634751f45fa86cc357690480b2215f8

SHA256
f1da6dd79e65bc2ce30541256889af3f8916345debc3b1c4dfef918837d33f08

SHA512
a7e757f3170ea73b1db42748cc76d5012b248ec6b3a44da7c59293878600bbece5f890a291b8d3385ee40d99e45e83255dbb43cb21d8b9dae382ea79a232e497

Download Submit
C:\Users\Admin\AppData\Local\Temp\ab.exe
Filesize
454KB

MD5
c3708a21241b7b529452b90d104e2cbf

SHA1
b97239286634751f45fa86cc357690480b2215f8

SHA256
f1da6dd79e65bc2ce30541256889af3f8916345debc3b1c4dfef918837d33f08

SHA512
a7e757f3170ea73b1db42748cc76d5012b248ec6b3a44da7c59293878600bbece5f890a291b8d3385ee40d99e45e83255dbb43cb21d8b9dae382ea79a232e497

Download Submit
memory/4260-130-0x0000000000000000-mapping.dmp

Download
memory/4260-133-0x0000000000980000-0x00000000009F8000-memory.dmp

Filesize
480KB

Download
memory/4260-134-0x0000000005280000-0x000000000531C000-memory.dmp

Filesize
624KB

Download
memory/4260-135-0x0000000005200000-0x0000000005266000-memory.dmp

Filesize
408KB

Download
memory/4260-136-0x0000000006580000-0x0000000006B24000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads