matiex | b61135c1300d75395161127afafb71130bd1930db014cac9262ebda8ab38acc7

General

Target

nigga b nostartupp.exe
Size

1.5MB
MD5

eef35b609d37962c62bab1df4c0b3c39
SHA1

b009a2c43f9a959c72245e07bfbb32ceb8a2473d
SHA256

da92268cf4a384c5d170d5d4ef9939183328e699c0097bd02b716757a2bc0dde
SHA512

63c54c570a672c2baf246d49e674f55a0b9b51e69db6c7cb8ac4d26ea8b1910e1ada87dc26eaaee13cb3428b9fd06a6277f27db88cf282746a9d9cc5f4d935b5

Score

10^/10

matiex collection evasion keylogger stealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

Signatures

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

Matiex Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3700-138-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

nigga b nostartupp.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	nigga b nostartupp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	nigga b nostartupp.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

ngentask.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngentask.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngentask.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngentask.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

68 freegeoip.app
69 freegeoip.app
66 checkip.dyndns.org

flow	ioc
68	freegeoip.app
69	freegeoip.app
66	checkip.dyndns.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

nigga b nostartupp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	nigga b nostartupp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	nigga b nostartupp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

nigga b nostartupp.exe

description pid process target process

PID 3724 set thread context of 3700 3724 nigga b nostartupp.exe ngentask.exe

description	pid	process	target process
PID 3724 set thread context of 3700	3724	nigga b nostartupp.exe	ngentask.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

nigga b nostartupp.exengentask.exe

pid	process
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3724	nigga b nostartupp.exe
3700	ngentask.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

nigga b nostartupp.exengentask.exe

description pid process

Token: SeDebugPrivilege 3724 nigga b nostartupp.exe
Token: SeDebugPrivilege 3700 ngentask.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ngentask.exe

pid process

3700 ngentask.exe

description	pid	process
Token: SeDebugPrivilege	3724	nigga b nostartupp.exe
Token: SeDebugPrivilege	3700	ngentask.exe

pid	process
3700	ngentask.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

nigga b nostartupp.exengentask.exe

description	pid	process	target process
PID 3724 wrote to memory of 2828	3724	nigga b nostartupp.exe	DataSvcUtil.exe
PID 3724 wrote to memory of 2828	3724	nigga b nostartupp.exe	DataSvcUtil.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3724 wrote to memory of 3700	3724	nigga b nostartupp.exe	ngentask.exe
PID 3700 wrote to memory of 1932	3700	ngentask.exe	netsh.exe
PID 3700 wrote to memory of 1932	3700	ngentask.exe	netsh.exe
PID 3700 wrote to memory of 1932	3700	ngentask.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

ngentask.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngentask.exe

outlook_win_path 1 IoCs

Processes:

ngentask.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngentask.exe

C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.exe
"C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3724

C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe"
2⤵
PID:2828

C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3700

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3700-138-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3700-140-0x0000000005450000-0x0000000005451000-memory.dmp

Filesize
4KB

Download
memory/3700-139-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3724-130-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3724-131-0x0000000000050000-0x00000000001DE000-memory.dmp

Filesize
1.6MB

Download
memory/3724-132-0x0000000005A40000-0x0000000005FE4000-memory.dmp

Filesize
5.6MB

Download
memory/3724-133-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/3724-134-0x0000000004CB0000-0x0000000004D42000-memory.dmp

Filesize
584KB

Download
memory/3724-135-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download
memory/3724-136-0x0000000002650000-0x000000000265A000-memory.dmp

Filesize
40KB

Download
memory/3724-137-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/3724-141-0x00000000710A5000-0x00000000710A6000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads