Malware Analysis Report

2025-01-22 13:51

Sample ID 240903-pjk6gaxfjg
Target ebc00fba1ae6fca850df2e602336ff40.zip
SHA256 79740721f44c5fdc93f7a347ac50fac2876e262d9c01e5d8a13cce7b2f401af0
Tags
hacked njrat discovery evasion persistence privilege_escalation
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

79740721f44c5fdc93f7a347ac50fac2876e262d9c01e5d8a13cce7b2f401af0

Threat Level: Known bad

The file ebc00fba1ae6fca850df2e602336ff40.zip was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation

Njrat family

Modifies Windows Firewall

Unsigned PE

Event Triggered Execution: Netsh Helper DLL

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-03 12:21

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 12:21

Reported

2024-09-03 12:24

Platform

win7-20240903-en

Max time kernel

149s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe"

Signatures

Modifies Windows Firewall

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

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe

"C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe" "fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 quasar.freedynamicdns.net udp

Files

memory/2496-0-0x0000000074251000-0x0000000074252000-memory.dmp

memory/2496-1-0x0000000074250000-0x00000000747FB000-memory.dmp

memory/2496-2-0x0000000074250000-0x00000000747FB000-memory.dmp

memory/2496-3-0x0000000074250000-0x00000000747FB000-memory.dmp

memory/2496-4-0x0000000074250000-0x00000000747FB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 12:21

Reported

2024-09-03 12:24

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe"

Signatures

Modifies Windows Firewall

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

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe

"C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe" "fb8ccba3d2d160e131c23b741394c019decda9624ee10a4bf27a20fc3391b9b6.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp
US 8.8.8.8:53 quasar.freedynamicdns.net udp

Files

memory/2772-0-0x00000000753C2000-0x00000000753C3000-memory.dmp

memory/2772-1-0x00000000753C0000-0x0000000075971000-memory.dmp

memory/2772-2-0x00000000753C0000-0x0000000075971000-memory.dmp

memory/2772-3-0x00000000753C2000-0x00000000753C3000-memory.dmp

memory/2772-4-0x00000000753C0000-0x0000000075971000-memory.dmp

memory/2772-5-0x00000000753C0000-0x0000000075971000-memory.dmp