Malware Analysis Report

2025-03-15 06:24

Sample ID 240927-yk52psyfnh
Target 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe
SHA256 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6
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

9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6

Threat Level: Known bad

The file 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat discovery evasion persistence privilege_escalation trojan

njRAT/Bladabindi

Njrat family

Modifies Windows Firewall

Checks computer location settings

Drops startup file

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

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 19:51

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 19:51

Reported

2024-09-27 19:54

Platform

win7-20240903-en

Max time kernel

150s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.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\51946497299e63d72ceca3fcaf1e5119.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51946497299e63d72ceca3fcaf1e5119.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .." C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .." C:\Users\Admin\AppData\Roaming\steamupdate.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\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\steamupdate.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\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 1856 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe
PID 2468 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe C:\Windows\SysWOW64\netsh.exe
PID 2468 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe C:\Windows\SysWOW64\netsh.exe
PID 2468 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe C:\Windows\SysWOW64\netsh.exe
PID 2468 wrote to memory of 2696 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe

"C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe"

C:\Users\Admin\AppData\Roaming\steamupdate.exe

"C:\Users\Admin\AppData\Roaming\steamupdate.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\steamupdate.exe" "steamupdate.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 updatesystemtool.ddns.net udp

Files

memory/1856-0-0x0000000074B11000-0x0000000074B12000-memory.dmp

memory/1856-1-0x0000000074B10000-0x00000000750BB000-memory.dmp

memory/1856-2-0x0000000074B10000-0x00000000750BB000-memory.dmp

\Users\Admin\AppData\Roaming\steamupdate.exe

MD5 a5cc399e162877d4a86f9a61f9a1ce7a
SHA1 189d22434fc15561d782c365f35f35f873679ab1
SHA256 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6
SHA512 6b16aaaf6ff48656ade3ea177478af912aaade5e0e72957181b6d4bf6870d13489f3d1b86b53977efde8955972c8e69fd58cada0f7d97eb756e8fd7f91f4dfea

memory/2468-10-0x0000000074B10000-0x00000000750BB000-memory.dmp

memory/2468-12-0x0000000074B10000-0x00000000750BB000-memory.dmp

memory/1856-11-0x0000000074B10000-0x00000000750BB000-memory.dmp

memory/2468-14-0x0000000074B10000-0x00000000750BB000-memory.dmp

memory/2468-15-0x0000000074B10000-0x00000000750BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-27 19:51

Reported

2024-09-27 19:54

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.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\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51946497299e63d72ceca3fcaf1e5119.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51946497299e63d72ceca3fcaf1e5119.exe C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\steamupdate.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\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .." C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .." C:\Users\Admin\AppData\Roaming\steamupdate.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\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\steamupdate.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\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\steamupdate.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe

"C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe"

C:\Users\Admin\AppData\Roaming\steamupdate.exe

"C:\Users\Admin\AppData\Roaming\steamupdate.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\steamupdate.exe" "steamupdate.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 101.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 updatesystemtool.ddns.net udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/1468-0-0x0000000075172000-0x0000000075173000-memory.dmp

memory/1468-1-0x0000000075170000-0x0000000075721000-memory.dmp

memory/1468-2-0x0000000075170000-0x0000000075721000-memory.dmp

C:\Users\Admin\AppData\Roaming\steamupdate.exe

MD5 a5cc399e162877d4a86f9a61f9a1ce7a
SHA1 189d22434fc15561d782c365f35f35f873679ab1
SHA256 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6
SHA512 6b16aaaf6ff48656ade3ea177478af912aaade5e0e72957181b6d4bf6870d13489f3d1b86b53977efde8955972c8e69fd58cada0f7d97eb756e8fd7f91f4dfea

memory/1468-13-0x0000000075170000-0x0000000075721000-memory.dmp

memory/4988-14-0x0000000075170000-0x0000000075721000-memory.dmp

memory/4988-15-0x0000000075170000-0x0000000075721000-memory.dmp

memory/4988-12-0x0000000075170000-0x0000000075721000-memory.dmp

memory/4988-17-0x0000000075170000-0x0000000075721000-memory.dmp

memory/4988-18-0x0000000075170000-0x0000000075721000-memory.dmp