Malware Analysis Report

2025-01-22 13:52

Sample ID 240825-lszhnszclp
Target Server.exe
SHA256 edfc57c98a9aafd20c755984ca5c188c1a1e1c11b8efcc335fc5a232b637fd9c
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 Overview

score
10/10

SHA256

edfc57c98a9aafd20c755984ca5c188c1a1e1c11b8efcc335fc5a232b637fd9c

Threat Level: Known bad

The file Server.exe 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

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Event Triggered Execution: Netsh Helper DLL

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 09:48

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 09:48

Reported

2024-08-25 09:55

Platform

win7-20240729-en

Max time kernel

359s

Max time network

347s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Server.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\System32.exe N/A

Loads dropped DLL

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\dce2dfe2889ecf9aea86ff70b4ad53ca = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .." C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\dce2dfe2889ecf9aea86ff70b4ad53ca = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .." C:\Users\Admin\AppData\Local\Temp\System32.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:\Users\Admin\AppData\Local\Temp\System32.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\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\System32.exe N/A

Processes

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

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

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

C:\Users\Admin\AppData\Local\Temp\System32.exe

"C:\Users\Admin\AppData\Local\Temp\System32.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System32.exe" "System32.exe" ENABLE

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 land-sustained.gl.at.ply.gg udp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 8.8.8.8:53 land-sustained.gl.at.ply.gg udp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp
US 147.185.221.22:4356 land-sustained.gl.at.ply.gg tcp

Files

memory/2916-0-0x0000000074FC1000-0x0000000074FC2000-memory.dmp

memory/2916-1-0x0000000074FC0000-0x000000007556B000-memory.dmp

memory/2916-2-0x0000000074FC0000-0x000000007556B000-memory.dmp

\Users\Admin\AppData\Local\Temp\System32.exe

MD5 816c212420f832d5d3ce0158b2d5519e
SHA1 278d08c54b9f7991afb5316932ccb4672f7a2562
SHA256 edfc57c98a9aafd20c755984ca5c188c1a1e1c11b8efcc335fc5a232b637fd9c
SHA512 f75d754368f4b45a95d829eb3bae081a6a2f06a45077a2dffefd7c667d8075b69b8f5c96600c44455e0f25760423e79db6ae37837caa7cfd5345082463a47855

memory/2768-12-0x0000000074FC0000-0x000000007556B000-memory.dmp

memory/2916-11-0x0000000074FC0000-0x000000007556B000-memory.dmp

memory/2768-10-0x0000000074FC0000-0x000000007556B000-memory.dmp

memory/2768-13-0x0000000074FC0000-0x000000007556B000-memory.dmp