Malware Analysis Report

2025-01-22 13:51

Sample ID 240901-d8ppea1clh
Target da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a
SHA256 da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a
Tags
njrat hacked 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

da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a

Threat Level: Known bad

The file da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a was found to be: Known bad.

Malicious Activity Summary

njrat hacked discovery evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

Executes dropped EXE

Drops startup file

Checks computer location settings

Adds Run key to start application

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 03:40

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 03:40

Reported

2024-09-01 03:43

Platform

win7-20240708-en

Max time kernel

149s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.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\e0173ebd8733c2357407c4966d6856f1.exe C:\Users\Admin\AppData\Local\Temp\server.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0173ebd8733c2357407c4966d6856f1.exe C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\e0173ebd8733c2357407c4966d6856f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\e0173ebd8733c2357407c4966d6856f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

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\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\server.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\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

Processes

C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe

"C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe"

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
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp

Files

memory/2408-0-0x00000000742D1000-0x00000000742D2000-memory.dmp

memory/2408-1-0x00000000742D0000-0x000000007487B000-memory.dmp

memory/2408-2-0x00000000742D0000-0x000000007487B000-memory.dmp

\Users\Admin\AppData\Local\Temp\server.exe

MD5 692f22cbe9a5fac0fe6728065fd2882a
SHA1 9bbce26a395a09f96e03cbf14151127b69b6831d
SHA256 da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a
SHA512 7757f5d566f0c5903f23b9299b11d7450254096c6c611196b2fd53a4630f6cb1c85317db99532d19ab38f2c50d839f0d8c6de0cadda8a6676c87d72961efb6fd

memory/2408-10-0x00000000742D0000-0x000000007487B000-memory.dmp

memory/1916-11-0x00000000742D0000-0x000000007487B000-memory.dmp

memory/1916-12-0x00000000742D0000-0x000000007487B000-memory.dmp

memory/1916-14-0x00000000742D0000-0x000000007487B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 03:40

Reported

2024-09-01 03:43

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0173ebd8733c2357407c4966d6856f1.exe C:\Users\Admin\AppData\Local\Temp\server.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e0173ebd8733c2357407c4966d6856f1.exe C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\server.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\e0173ebd8733c2357407c4966d6856f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e0173ebd8733c2357407c4966d6856f1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Enumerates physical storage devices

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\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\server.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\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

Processes

C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe

"C:\Users\Admin\AppData\Local\Temp\da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a.exe"

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 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
N/A 192.168.11.184:5552 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
N/A 192.168.11.184:5552 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
N/A 192.168.11.184:5552 tcp
N/A 192.168.11.184:5552 tcp

Files

memory/800-0-0x00000000752F2000-0x00000000752F3000-memory.dmp

memory/800-1-0x00000000752F0000-0x00000000758A1000-memory.dmp

memory/800-2-0x00000000752F0000-0x00000000758A1000-memory.dmp

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

MD5 692f22cbe9a5fac0fe6728065fd2882a
SHA1 9bbce26a395a09f96e03cbf14151127b69b6831d
SHA256 da5bbdd28399e0d1aca7bda89e4b3855d1582ca96fb784957602d114ff02929a
SHA512 7757f5d566f0c5903f23b9299b11d7450254096c6c611196b2fd53a4630f6cb1c85317db99532d19ab38f2c50d839f0d8c6de0cadda8a6676c87d72961efb6fd

memory/3744-12-0x00000000752F0000-0x00000000758A1000-memory.dmp

memory/800-13-0x00000000752F0000-0x00000000758A1000-memory.dmp

memory/3744-14-0x00000000752F0000-0x00000000758A1000-memory.dmp

memory/3744-16-0x00000000752F0000-0x00000000758A1000-memory.dmp