Malware Analysis Report

2025-03-15 06:22

Sample ID 241006-m6kr4szhrk
Target ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe
SHA256 ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c
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

ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c

Threat Level: Known bad

The file ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.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

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Drops startup file

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Event Triggered Execution: Netsh Helper DLL

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-06 11:04

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-06 11:04

Reported

2024-10-06 11:07

Platform

win7-20240903-en

Max time kernel

149s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.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\8e3709de950aab92ac1a166058ff0595.exe C:\Users\Public\server.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e3709de950aab92ac1a166058ff0595.exe C:\Users\Public\server.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Public\server.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\8e3709de950aab92ac1a166058ff0595 = "\"C:\\Users\\Public\\server.exe\" .." C:\Users\Public\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8e3709de950aab92ac1a166058ff0595 = "\"C:\\Users\\Public\\server.exe\" .." C:\Users\Public\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\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Public\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\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe

"C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe"

C:\Users\Public\server.exe

"C:\Users\Public\server.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Public\server.exe" "server.exe" ENABLE

Network

Country Destination Domain Proto
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp

Files

memory/780-0-0x0000000074D01000-0x0000000074D02000-memory.dmp

memory/780-1-0x0000000074D00000-0x00000000752AB000-memory.dmp

memory/780-2-0x0000000074D00000-0x00000000752AB000-memory.dmp

\Users\Public\server.exe

MD5 cafebf10a4a9f73bb41a1a357c2a507f
SHA1 482ebb056503f7a34ad16a4ad2ce77f8cab78ba8
SHA256 ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c
SHA512 5630065ffd8c3266d8859cbcd3ed0dfeb023f0276665f1015b1a8c0b10fb5ecb7b0a6d142daa891df752e4c472891be77e7c71ece4f46fe25f377e4cd612f772

memory/780-11-0x0000000074D00000-0x00000000752AB000-memory.dmp

memory/308-12-0x0000000074D00000-0x00000000752AB000-memory.dmp

memory/308-10-0x0000000074D00000-0x00000000752AB000-memory.dmp

memory/308-14-0x0000000074D00000-0x00000000752AB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-06 11:04

Reported

2024-10-06 11:07

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe"

Signatures

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\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e3709de950aab92ac1a166058ff0595.exe C:\Users\Public\server.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e3709de950aab92ac1a166058ff0595.exe C:\Users\Public\server.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Public\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\8e3709de950aab92ac1a166058ff0595 = "\"C:\\Users\\Public\\server.exe\" .." C:\Users\Public\server.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8e3709de950aab92ac1a166058ff0595 = "\"C:\\Users\\Public\\server.exe\" .." C:\Users\Public\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\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Public\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\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A
Token: 33 N/A C:\Users\Public\server.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Public\server.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe

"C:\Users\Admin\AppData\Local\Temp\ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c.exe"

C:\Users\Public\server.exe

"C:\Users\Public\server.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Public\server.exe" "server.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
KR 180.230.116.72:5552 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
KR 180.230.116.72:5552 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
KR 180.230.116.72:5552 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
KR 180.230.116.72:5552 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
KR 180.230.116.72:5552 tcp
KR 180.230.116.72:5552 tcp

Files

memory/2504-0-0x00000000749D2000-0x00000000749D3000-memory.dmp

memory/2504-1-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/2504-2-0x00000000749D0000-0x0000000074F81000-memory.dmp

C:\Users\Public\server.exe

MD5 cafebf10a4a9f73bb41a1a357c2a507f
SHA1 482ebb056503f7a34ad16a4ad2ce77f8cab78ba8
SHA256 ad01160476ded3d8dec827042e6627e5b2a50a4bcf47b37fe892b957de4e149c
SHA512 5630065ffd8c3266d8859cbcd3ed0dfeb023f0276665f1015b1a8c0b10fb5ecb7b0a6d142daa891df752e4c472891be77e7c71ece4f46fe25f377e4cd612f772

memory/3936-13-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/3936-14-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/3936-15-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/2504-12-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/3936-17-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/3936-18-0x00000000749D0000-0x0000000074F81000-memory.dmp

memory/3936-19-0x00000000749D0000-0x0000000074F81000-memory.dmp