Malware Analysis Report

2025-01-22 13:46

Sample ID 240827-dx5w9azhjf
Target a5480b9823c793550c8180bedab9fbe0N
SHA256 aed38ef8dd1b370b4138f1ea172fbf3ff38c69e99c09f221be431b67d5d2490b
Tags
njrat hacked 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

aed38ef8dd1b370b4138f1ea172fbf3ff38c69e99c09f221be431b67d5d2490b

Threat Level: Known bad

The file a5480b9823c793550c8180bedab9fbe0N was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence privilege_escalation trojan

njRAT/Bladabindi

Modifies Windows Firewall

Drops startup file

.NET Reactor proctector

Adds Run key to start application

Event Triggered Execution: Netsh Helper DLL

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-27 03:24

Signatures

.NET Reactor proctector

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-27 03:24

Reported

2024-08-27 03:26

Platform

win7-20240705-en

Max time kernel

119s

Max time network

116s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\netsh.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3323b9ea64c074ec4c4f854b5aa57bc2.exe C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3323b9ea64c074ec4c4f854b5aa57bc2.exe C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\3323b9ea64c074ec4c4f854b5aa57bc2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a5480b9823c793550c8180bedab9fbe0N.exe\" .." C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3323b9ea64c074ec4c4f854b5aa57bc2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a5480b9823c793550c8180bedab9fbe0N.exe\" .." C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\system32\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\system32\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\system32\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe

"C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe"

C:\Windows\system32\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe" "a5480b9823c793550c8180bedab9fbe0N.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 ouss.freedynamicdns.net udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
US 8.8.8.8:53 ouss.freedynamicdns.net udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp

Files

memory/2788-0-0x000007FEF64AE000-0x000007FEF64AF000-memory.dmp

memory/2788-1-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-2-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-3-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-4-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2788-5-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-6-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-7-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-9-0x000007FEF64AE000-0x000007FEF64AF000-memory.dmp

memory/2788-10-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-11-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-12-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

memory/2788-13-0x000007FEF61F0000-0x000007FEF6B8D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-27 03:24

Reported

2024-08-27 03:26

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\netsh.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3323b9ea64c074ec4c4f854b5aa57bc2.exe C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3323b9ea64c074ec4c4f854b5aa57bc2.exe C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3323b9ea64c074ec4c4f854b5aa57bc2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a5480b9823c793550c8180bedab9fbe0N.exe\" .." C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3323b9ea64c074ec4c4f854b5aa57bc2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a5480b9823c793550c8180bedab9fbe0N.exe\" .." C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\SYSTEM32\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\SYSTEM32\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh C:\Windows\SYSTEM32\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5072 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe C:\Windows\SYSTEM32\netsh.exe
PID 5072 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe C:\Windows\SYSTEM32\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe

"C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe"

C:\Windows\SYSTEM32\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a5480b9823c793550c8180bedab9fbe0N.exe" "a5480b9823c793550c8180bedab9fbe0N.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.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 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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 ouss.freedynamicdns.net udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 ouss.freedynamicdns.net udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
MA 160.179.97.13:1998 ouss.freedynamicdns.net tcp

Files

memory/5072-0-0x00007FF8F2D25000-0x00007FF8F2D26000-memory.dmp

memory/5072-1-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-2-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-3-0x000000001B860000-0x000000001B906000-memory.dmp

memory/5072-4-0x000000001BDE0000-0x000000001C2AE000-memory.dmp

memory/5072-5-0x000000001C350000-0x000000001C3EC000-memory.dmp

memory/5072-6-0x0000000000EE0000-0x0000000000EE8000-memory.dmp

memory/5072-7-0x000000001C440000-0x000000001C48C000-memory.dmp

memory/5072-8-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-10-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-9-0x0000000001200000-0x0000000001210000-memory.dmp

memory/5072-11-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-12-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-13-0x00007FF8F2D25000-0x00007FF8F2D26000-memory.dmp

memory/5072-14-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-16-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-17-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp

memory/5072-18-0x00007FF8F2A70000-0x00007FF8F3411000-memory.dmp