matiex | 021f4846815c6c2c0fcd2a808054c52c0569526bd4fb049b47ceb061e822d354

General

Target

1XrdOdPqR6jBVMu.exe
Size

507KB
MD5

e5a4d65f4234001c405be18760073317
SHA1

9aaf994aa6cee464fde60749d9a1aba698199b41
SHA256

021f4846815c6c2c0fcd2a808054c52c0569526bd4fb049b47ceb061e822d354
SHA512

27892695e298ac1be6f982b97be4a9da56ed31031c3cb83d8e98815d1676442672aa3626a8a14782e638fa988a96dcb3229c72356374f7193fc8ee7469fdcc69

Score

10^/10

matiex keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
kin.hosting-mexico.net
Port:
26
Username:
[email protected]
Password:
VN=m3-pILg4f

Signatures

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

Matiex Main Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3932-12-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral2/memory/3932-13-0x000000000046D49E-mapping.dmp	family_matiex

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	freegeoip.app
14	checkip.dyndns.org
17	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2076 set thread context of 3932	2076	1XrdOdPqR6jBVMu.exe	75

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = 9f4b155b157dd601	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2076	1XrdOdPqR6jBVMu.exe
2076	1XrdOdPqR6jBVMu.exe
2076	1XrdOdPqR6jBVMu.exe
3932	1XrdOdPqR6jBVMu.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	804	svchost.exe
Token: SeCreatePagefilePrivilege	804	svchost.exe
Token: SeDebugPrivilege	2076	1XrdOdPqR6jBVMu.exe
Token: SeDebugPrivilege	3932	1XrdOdPqR6jBVMu.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 2076 wrote to memory of 3932	2076	1XrdOdPqR6jBVMu.exe	75
PID 3932 wrote to memory of 3100	3932	1XrdOdPqR6jBVMu.exe	77
PID 3932 wrote to memory of 3100	3932	1XrdOdPqR6jBVMu.exe	77
PID 3932 wrote to memory of 3100	3932	1XrdOdPqR6jBVMu.exe	77

C:\Users\Admin\AppData\Local\Temp\1XrdOdPqR6jBVMu.exe
"C:\Users\Admin\AppData\Local\Temp\1XrdOdPqR6jBVMu.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\1XrdOdPqR6jBVMu.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3932
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:3100

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2076-9-0x0000000007810000-0x0000000007882000-memory.dmp

Filesize
456KB

Download
memory/2076-11-0x000000000B240000-0x000000000B2D8000-memory.dmp

Filesize
608KB

Download
memory/2076-4-0x0000000005050000-0x0000000005051000-memory.dmp

Filesize
4KB

Download
memory/2076-5-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download
memory/2076-6-0x0000000005290000-0x0000000005291000-memory.dmp

Filesize
4KB

Download
memory/2076-7-0x0000000005300000-0x0000000005303000-memory.dmp

Filesize
12KB

Download
memory/2076-8-0x00000000074C0000-0x00000000074C1000-memory.dmp

Filesize
4KB

Download
memory/2076-0-0x0000000073530000-0x0000000073C1E000-memory.dmp

Filesize
6.9MB

Download
memory/2076-3-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/2076-1-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/2076-10-0x0000000007980000-0x0000000007981000-memory.dmp

Filesize
4KB

Download
memory/3932-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/3932-15-0x0000000073530000-0x0000000073C1E000-memory.dmp

Filesize
6.9MB

Download
memory/3932-20-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/3932-22-0x00000000065C0000-0x00000000065C1000-memory.dmp

Filesize
4KB

Download

Analysis

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