Malware Analysis Report

2025-01-22 13:52

Sample ID 240826-lfyevawgnb
Target 1b4192a3f7d586fbe102ff76e5f6c760N
SHA256 1729c5b2ca53abe5d0e67535766860ebba91dc23b8575ac5b6fc8ca33167de14
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

1729c5b2ca53abe5d0e67535766860ebba91dc23b8575ac5b6fc8ca33167de14

Threat Level: Known bad

The file 1b4192a3f7d586fbe102ff76e5f6c760N was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation

Njrat family

Modifies Windows Firewall

System Location Discovery: System Language Discovery

Unsigned PE

Event Triggered Execution: Netsh Helper DLL

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-26 09:29

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-26 09:29

Reported

2024-08-26 09:31

Platform

win7-20240704-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.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\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe

"C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe" "1b4192a3f7d586fbe102ff76e5f6c760N.exe" ENABLE

Network

Country Destination Domain Proto
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp

Files

memory/2552-0-0x0000000074A21000-0x0000000074A22000-memory.dmp

memory/2552-1-0x0000000074A20000-0x0000000074FCB000-memory.dmp

memory/2552-2-0x0000000074A20000-0x0000000074FCB000-memory.dmp

memory/2552-4-0x0000000074A20000-0x0000000074FCB000-memory.dmp

memory/2552-5-0x0000000074A20000-0x0000000074FCB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-26 09:29

Reported

2024-08-26 09:31

Platform

win10v2004-20240802-en

Max time kernel

115s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.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\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe

"C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\1b4192a3f7d586fbe102ff76e5f6c760N.exe" "1b4192a3f7d586fbe102ff76e5f6c760N.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp
US 144.202.69.96:22021 tcp

Files

memory/220-0-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

memory/220-1-0x0000000074DD0000-0x0000000075381000-memory.dmp

memory/220-2-0x0000000074DD0000-0x0000000075381000-memory.dmp

memory/220-5-0x0000000074DD0000-0x0000000075381000-memory.dmp

memory/220-4-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

memory/220-6-0x0000000074DD0000-0x0000000075381000-memory.dmp