Malware Analysis Report

2025-03-15 06:27

Sample ID 240120-x5z6hsffe6
Target db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe
SHA256 db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5
Tags
hacked njrat evasion persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5

Threat Level: Known bad

The file db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion persistence

Njrat family

Modifies Windows Firewall

Drops startup file

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Drops autorun.inf file

Unsigned PE

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

Enumerates system info in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-20 19:26

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-20 19:26

Reported

2024-01-20 19:29

Platform

win10v2004-20231215-en

Max time kernel

142s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe"

Signatures

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe

"C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 452

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 27.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 172.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/4064-0-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/4064-1-0x0000000074FA0000-0x0000000075551000-memory.dmp

memory/4064-2-0x0000000000650000-0x0000000000660000-memory.dmp

memory/4064-9-0x0000000074FA0000-0x0000000075551000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 19:26

Reported

2024-01-20 19:29

Platform

win7-20231215-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe"

Signatures

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\3af7f2b1f33dad1da92e7f8ffbbc0386.exe C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3af7f2b1f33dad1da92e7f8ffbbc0386.exe C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\3af7f2b1f33dad1da92e7f8ffbbc0386 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe\" .." C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\3af7f2b1f33dad1da92e7f8ffbbc0386 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe\" .." C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe

"C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe" "db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:15574 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:15574 0.tcp.eu.ngrok.io tcp

Files

memory/2616-2-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/2616-1-0x0000000000620000-0x0000000000660000-memory.dmp

memory/2616-0-0x0000000074B20000-0x00000000750CB000-memory.dmp

F:\svchost.exe

MD5 5c0fbebc21d4edf3759244438fc479ae
SHA1 a5a9bb372be9d679be2795e2a2f42250b43a3d51
SHA256 db36cafda963b6464923356faf6e9ae1b953b2a85dcfd7c372c925407f1c21a5
SHA512 96d33662575ccaa7b7adb24c15f3599c6203f66fb585f7d187829492f85d5995dbda5b80ab72960abae004188fd6ff1b6467093fdabba5331e6ce365156396a9

memory/2616-12-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/2616-13-0x0000000000620000-0x0000000000660000-memory.dmp