Malware Analysis Report

2025-01-22 14:04

Sample ID 240302-avz2fafg85
Target Server.exe
SHA256 bfb7f60154845174ecfa3e1ae4257da40ade49165fb81e1d1fd64abf66492927
Tags
hacked njrat evasion
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

bfb7f60154845174ecfa3e1ae4257da40ade49165fb81e1d1fd64abf66492927

Threat Level: Known bad

The file Server.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion

Njrat family

Modifies Windows Firewall

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-02 00:32

Signatures

Njrat family

njrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-02 00:32

Reported

2024-03-02 00:35

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

114s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Server.exe"

Signatures

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Server.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2632 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\SysWOW64\netsh.exe
PID 2632 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\SysWOW64\netsh.exe
PID 2632 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Server.exe

"C:\Users\Admin\AppData\Local\Temp\Server.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp

Files

memory/2632-0-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2632-1-0x0000000000ED0000-0x0000000000EE0000-memory.dmp

memory/2632-2-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2632-3-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2632-4-0x0000000074830000-0x0000000074DE1000-memory.dmp