Malware Analysis Report

2025-03-15 06:24

Sample ID 240927-pj8lrssdlq
Target 4e5a132f843257037445628396c656b9.exe
SHA256 e2c457f18c1063a235f962572ee6f6d49ddfbeba92599470b94b5fa2c3c237e1
Tags
hacked njrat discovery evasion persistence privilege_escalation trojan
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

e2c457f18c1063a235f962572ee6f6d49ddfbeba92599470b94b5fa2c3c237e1

Threat Level: Known bad

The file 4e5a132f843257037445628396c656b9.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Drops startup file

Adds Run key to start application

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

2024-09-27 12:22

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-27 12:22

Reported

2024-09-27 12:25

Platform

win7-20240903-en

Max time kernel

149s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .." C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .." C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
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
Key queried \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\4e5a132f843257037445628396c656b9.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\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe

"C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe" "4e5a132f843257037445628396c656b9.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 steam.buy-nitro.ru udp
RU 176.109.107.2:5555 steam.buy-nitro.ru tcp

Files

memory/1928-0-0x00000000747B1000-0x00000000747B2000-memory.dmp

memory/1928-1-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/1928-2-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/1928-4-0x00000000747B0000-0x0000000074D5B000-memory.dmp

memory/1928-5-0x00000000747B0000-0x0000000074D5B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-27 12:22

Reported

2024-09-27 12:25

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .." C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .." C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.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\4e5a132f843257037445628396c656b9.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\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe

"C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe" "4e5a132f843257037445628396c656b9.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 steam.buy-nitro.ru udp
RU 176.109.107.2:5555 steam.buy-nitro.ru tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 2.107.109.176.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 71.190.18.2.in-addr.arpa udp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp

Files

memory/5016-0-0x0000000074972000-0x0000000074973000-memory.dmp

memory/5016-1-0x0000000074970000-0x0000000074F21000-memory.dmp

memory/5016-2-0x0000000074970000-0x0000000074F21000-memory.dmp

memory/5016-4-0x0000000074972000-0x0000000074973000-memory.dmp

memory/5016-5-0x0000000074970000-0x0000000074F21000-memory.dmp

memory/5016-6-0x0000000074970000-0x0000000074F21000-memory.dmp