matiex | cd4d29b138b75a9d1a10fa7d724168ae155ef7779d97c042e8014b9ae6f93087

General

Target

ac52db0c62fac74e6708635ac3db5f46.exe
Size

343KB
MD5

ac52db0c62fac74e6708635ac3db5f46
SHA1

0f35104cb6938b60cabbaf6257975792d5399024
SHA256

cd4d29b138b75a9d1a10fa7d724168ae155ef7779d97c042e8014b9ae6f93087
SHA512

95953124e75a38ed27ad6e60cbe0f9e952d5d367237784a3c0b47ed7d5fa30846f61a575458e3880b8f0539924cfd029983aa46a137db5ff5152e82140df7925

Score

10^/10

matiex keylogger stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

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
behavioral1/memory/1756-56-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral1/memory/1756-57-0x000000000040188B-mapping.dmp	family_matiex
behavioral1/memory/1756-59-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral1/memory/1756-60-0x0000000004490000-0x00000000044FF000-memory.dmp	family_matiex

Loads dropped DLL 1 IoCs

Processes:

ac52db0c62fac74e6708635ac3db5f46.exe

pid process

1268 ac52db0c62fac74e6708635ac3db5f46.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

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

Processes:

ac52db0c62fac74e6708635ac3db5f46.exe

description pid process target process

PID 1268 set thread context of 1756 1268 ac52db0c62fac74e6708635ac3db5f46.exe ac52db0c62fac74e6708635ac3db5f46.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ac52db0c62fac74e6708635ac3db5f46.exe

pid process

1756 ac52db0c62fac74e6708635ac3db5f46.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ac52db0c62fac74e6708635ac3db5f46.exe

description pid process

Token: SeDebugPrivilege 1756 ac52db0c62fac74e6708635ac3db5f46.exe

pid	process
1268	ac52db0c62fac74e6708635ac3db5f46.exe

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

description	pid	process	target process
PID 1268 set thread context of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe

pid	process
1756	ac52db0c62fac74e6708635ac3db5f46.exe

description	pid	process
Token: SeDebugPrivilege	1756	ac52db0c62fac74e6708635ac3db5f46.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

ac52db0c62fac74e6708635ac3db5f46.exe

description	pid	process	target process
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe
PID 1268 wrote to memory of 1756	1268	ac52db0c62fac74e6708635ac3db5f46.exe	ac52db0c62fac74e6708635ac3db5f46.exe

C:\Users\Admin\AppData\Local\Temp\ac52db0c62fac74e6708635ac3db5f46.exe
"C:\Users\Admin\AppData\Local\Temp\ac52db0c62fac74e6708635ac3db5f46.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1268

C:\Users\Admin\AppData\Local\Temp\ac52db0c62fac74e6708635ac3db5f46.exe
"C:\Users\Admin\AppData\Local\Temp\ac52db0c62fac74e6708635ac3db5f46.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsiE0FD.tmp\lqwipxz.dll

MD5
148e2440033d4c9c35f68f4072ba5d1e

SHA1
480b6d0a378fa7e785e79de7e0f757dd7e8124e3

SHA256
47094fa8accf250c8df2021a0180140be6f1091415d44e9927e5ed6ba6c60bb4

SHA512
1a272ef57ad29b3481a1f18530168d1af7cc6a20bef32249412e0eadcc7dbd306157c3b8fca971ac21bde9cf7229370124cce29038bd3cc1ef93a03008c0367d

Download Submit
memory/1268-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1756-56-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1756-57-0x000000000040188B-mapping.dmp

Download
memory/1756-59-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1756-60-0x0000000004490000-0x00000000044FF000-memory.dmp

Filesize
444KB

Download
memory/1756-63-0x0000000004632000-0x0000000004633000-memory.dmp

Filesize
4KB

Download
memory/1756-62-0x0000000004631000-0x0000000004632000-memory.dmp

Filesize
4KB

Download
memory/1756-65-0x0000000004634000-0x0000000004635000-memory.dmp

Filesize
4KB

Download
memory/1756-64-0x0000000004633000-0x0000000004634000-memory.dmp

Filesize
4KB

Download

Analysis

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