Malware Analysis Report

2025-03-15 06:24

Sample ID 240928-vrm8paxapq
Target c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N
SHA256 c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4
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

c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4

Threat Level: Known bad

The file c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

Njrat family

njRAT/Bladabindi

Modifies Windows Firewall

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

System Location Discovery: System Language Discovery

Event Triggered Execution: Netsh Helper DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-28 17:13

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-28 17:13

Reported

2024-09-28 17:15

Platform

win7-20240903-en

Max time kernel

119s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"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\33f9e1d6fefce618b71a50ca08e3da67 = "\"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\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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

Processes

C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe

"C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp

Files

memory/2104-0-0x0000000074541000-0x0000000074542000-memory.dmp

memory/2104-1-0x0000000074540000-0x0000000074AEB000-memory.dmp

memory/2104-2-0x0000000074540000-0x0000000074AEB000-memory.dmp

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

MD5 877b6a6f72faa6b0116aca386eda31c0
SHA1 7662c9661b815724aa24524dad25cd830c6a3f46
SHA256 c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4
SHA512 57665b6d27d6ec0f37f54c0a1035d8b2b43bb5b96bcb362f5cfc5381c001a35bdc5f613d004b15ad23148758dc9bff1da93114b1f210694ab930a32c0f476435

memory/3044-10-0x0000000074540000-0x0000000074AEB000-memory.dmp

memory/2104-11-0x0000000074540000-0x0000000074AEB000-memory.dmp

memory/3044-12-0x0000000074540000-0x0000000074AEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-28 17:13

Reported

2024-09-28 17:15

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"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\33f9e1d6fefce618b71a50ca08e3da67 = "\"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\server.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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

Processes

C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe

"C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
N/A 127.0.0.1:1978 tcp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp
N/A 127.0.0.1:1978 tcp

Files

memory/2320-0-0x0000000074A52000-0x0000000074A53000-memory.dmp

memory/2320-1-0x0000000074A50000-0x0000000075001000-memory.dmp

memory/2320-2-0x0000000074A50000-0x0000000075001000-memory.dmp

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

MD5 877b6a6f72faa6b0116aca386eda31c0
SHA1 7662c9661b815724aa24524dad25cd830c6a3f46
SHA256 c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4
SHA512 57665b6d27d6ec0f37f54c0a1035d8b2b43bb5b96bcb362f5cfc5381c001a35bdc5f613d004b15ad23148758dc9bff1da93114b1f210694ab930a32c0f476435

memory/4296-12-0x0000000074A50000-0x0000000075001000-memory.dmp

memory/2320-13-0x0000000074A50000-0x0000000075001000-memory.dmp

memory/4296-14-0x0000000074A50000-0x0000000075001000-memory.dmp

memory/4296-15-0x0000000074A50000-0x0000000075001000-memory.dmp