Malware Analysis Report

2025-03-15 06:26

Sample ID 240121-yds4kaghhq
Target Spoofer by kero.exe
SHA256 18dcdea8ad6ed1da48c7fd85a62e2fe4b5bdf4e447bb28cfe17ea705396d0878
Tags
hacked njrat evasion
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 Overview

score
10/10

SHA256

18dcdea8ad6ed1da48c7fd85a62e2fe4b5bdf4e447bb28cfe17ea705396d0878

Threat Level: Known bad

The file Spoofer by kero.exe was found to be: Known bad.

Malicious Activity Summary

hacked njrat evasion

Njrat family

Modifies Windows Firewall

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-21 19:40

Signatures

Njrat family

njrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-21 19:40

Reported

2024-01-21 19:43

Platform

win11-20231215-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe"

Signatures

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Legitimate hosting services abused for malware hosting/C2

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 848 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe C:\Windows\SysWOW64\netsh.exe
PID 848 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe C:\Windows\SysWOW64\netsh.exe
PID 848 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe

"C:\Users\Admin\AppData\Local\Temp\Spoofer by kero.exe"

C:\Windows\SysWOW64\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 35.158.159.254:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp
DE 18.198.77.177:17216 4.tcp.eu.ngrok.io tcp

Files

memory/848-0-0x0000000075010000-0x00000000755C1000-memory.dmp

memory/848-1-0x0000000075010000-0x00000000755C1000-memory.dmp

memory/848-2-0x00000000011D0000-0x00000000011E0000-memory.dmp

memory/848-4-0x0000000075010000-0x00000000755C1000-memory.dmp

memory/848-5-0x0000000075010000-0x00000000755C1000-memory.dmp