Malware Analysis Report

2025-01-22 14:02

Sample ID 240225-rkpldsdd98
Target a3fe854723ec37a910eb2c9924b941ea
SHA256 0d65aac1dc725db5e6893fb97b2e2401b91ffc7fd2903e7a3c476e8701e202c5
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0d65aac1dc725db5e6893fb97b2e2401b91ffc7fd2903e7a3c476e8701e202c5

Threat Level: Known bad

The file a3fe854723ec37a910eb2c9924b941ea was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion

Njrat family

Modifies Windows Firewall

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-25 14:15

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-25 14:15

Reported

2024-02-25 14:17

Platform

win7-20240221-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe"

Signatures

Modifies Windows Firewall

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 2.tcp.ngrok.io N/A N/A
N/A 2.tcp.ngrok.io N/A N/A
N/A 2.tcp.ngrok.io N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe

"C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe" "a3fe854723ec37a910eb2c9924b941ea.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp

Files

memory/1916-0-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/1916-1-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/1916-2-0x0000000000A00000-0x0000000000A40000-memory.dmp

memory/1916-3-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/1916-4-0x0000000074610000-0x0000000074BBB000-memory.dmp

memory/1916-5-0x0000000000A00000-0x0000000000A40000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-25 14:15

Reported

2024-02-25 14:17

Platform

win10v2004-20240221-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe"

Signatures

Modifies Windows Firewall

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 2.tcp.ngrok.io N/A N/A
N/A 2.tcp.ngrok.io N/A N/A
N/A 2.tcp.ngrok.io N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe

"C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a3fe854723ec37a910eb2c9924b941ea.exe" "a3fe854723ec37a910eb2c9924b941ea.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 179.178.17.96.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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 3.128.107.74:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 3.138.45.170:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 2.tcp.ngrok.io udp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 13.59.15.185:12980 2.tcp.ngrok.io tcp
US 8.8.8.8:53 udp

Files

memory/4380-0-0x00000000748D0000-0x0000000074E81000-memory.dmp

memory/4380-1-0x0000000001A90000-0x0000000001AA0000-memory.dmp

memory/4380-2-0x00000000748D0000-0x0000000074E81000-memory.dmp

memory/4380-3-0x00000000748D0000-0x0000000074E81000-memory.dmp