Malware Analysis Report

2025-03-15 06:26

Sample ID 240125-d7qv3sfdf8
Target 73a2d271f4b6cc3e4c32148efb7cdbf3
SHA256 092a9a5a2dae728331834b73af9602e7602fc70954e512778a3cce3a3ccfac79
Tags
njrat hacked evasion persistence 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

092a9a5a2dae728331834b73af9602e7602fc70954e512778a3cce3a3ccfac79

Threat Level: Known bad

The file 73a2d271f4b6cc3e4c32148efb7cdbf3 was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

UAC bypass

Modifies Windows Firewall

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Checks whether UAC is enabled

Adds Run key to start application

AutoIT Executable

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

System policy modification

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 03:39

Signatures

AutoIT Executable

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

2024-01-25 03:39

Reported

2024-01-25 03:41

Platform

win7-20231129-en

Max time kernel

149s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe"

Signatures

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

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\4437\4437.exe N/A
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-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"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\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

Enumerates physical storage devices

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
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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe C:\Users\Admin\AppData\Local\Temp\4437\4437.exe
PID 2360 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe C:\Users\Admin\AppData\Local\Temp\4437\4437.exe
PID 2360 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe C:\Users\Admin\AppData\Local\Temp\4437\4437.exe
PID 2360 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe C:\Users\Admin\AppData\Local\Temp\4437\4437.exe
PID 2220 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\4437\4437.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2220 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\4437\4437.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2220 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\4437\4437.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2220 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\4437\4437.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2656 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2656 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2656 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe
PID 2656 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\netsh.exe

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe

"C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe"

C:\Users\Admin\AppData\Local\Temp\4437\4437.exe

"C:\Users\Admin\AppData\Local\Temp\4437\4437.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 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp

Files

\Users\Admin\AppData\Local\Temp\4437\4437.exe

MD5 1a742117f7a8efdc80ea094c28d9d46d
SHA1 0952695455605daa7af8d445b66b612343c60f19
SHA256 5c0dfc2d9a7fed1fdc3f108b263033723b0a5457ff72e9e54e05e49ec27089db
SHA512 884cd10195a0e194b05ab8fbe1874f3931e3c75755666ae7de3447c768f0f9be5c514f42cf57a54e08d79e1513e79a6d3cf7838accf0b2ae5843f434c070d53c

memory/2220-14-0x0000000074AB0000-0x000000007505B000-memory.dmp

memory/2220-15-0x0000000000210000-0x0000000000250000-memory.dmp

memory/2220-16-0x0000000074AB0000-0x000000007505B000-memory.dmp

memory/2220-25-0x0000000074AB0000-0x000000007505B000-memory.dmp

memory/2656-24-0x0000000000170000-0x00000000001B0000-memory.dmp

memory/2656-26-0x0000000074AB0000-0x000000007505B000-memory.dmp

memory/2656-27-0x0000000074AB0000-0x000000007505B000-memory.dmp

memory/2656-28-0x0000000000170000-0x00000000001B0000-memory.dmp

memory/2656-29-0x0000000074AB0000-0x000000007505B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 03:39

Reported

2024-01-25 03:42

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe"

Signatures

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\4437\4437.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4437\4437.exe N/A
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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"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\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." C:\Users\Admin\AppData\Local\Temp\server.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

Enumerates physical storage devices

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
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

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe

"C:\Users\Admin\AppData\Local\Temp\73a2d271f4b6cc3e4c32148efb7cdbf3.exe"

C:\Users\Admin\AppData\Local\Temp\4437\4437.exe

"C:\Users\Admin\AppData\Local\Temp\4437\4437.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
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
N/A 10.10.10.10:5552 tcp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
N/A 10.10.10.10:5552 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
N/A 10.10.10.10:5552 tcp
US 8.8.8.8:53 204.201.50.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\4437\4437.exe

MD5 1a742117f7a8efdc80ea094c28d9d46d
SHA1 0952695455605daa7af8d445b66b612343c60f19
SHA256 5c0dfc2d9a7fed1fdc3f108b263033723b0a5457ff72e9e54e05e49ec27089db
SHA512 884cd10195a0e194b05ab8fbe1874f3931e3c75755666ae7de3447c768f0f9be5c514f42cf57a54e08d79e1513e79a6d3cf7838accf0b2ae5843f434c070d53c

memory/904-9-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/904-10-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/904-11-0x0000000000FE0000-0x0000000000FF0000-memory.dmp

memory/936-21-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/904-22-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/936-23-0x0000000000F00000-0x0000000000F10000-memory.dmp

memory/936-24-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/936-25-0x0000000072B00000-0x00000000730B1000-memory.dmp

memory/936-26-0x0000000000F00000-0x0000000000F10000-memory.dmp