Malware Analysis Report

2024-10-19 08:27

Sample ID 240125-v4xb5abgc7
Target 751abbc5a0f05d1b820100cb82287e01
SHA256 b484d80a99b9fcd1f060955d2ee645c2a3ad04ad7c51f29121ba28b21e524557
Tags
evasion persistence kinsing loader
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

b484d80a99b9fcd1f060955d2ee645c2a3ad04ad7c51f29121ba28b21e524557

Threat Level: Known bad

The file 751abbc5a0f05d1b820100cb82287e01 was found to be: Known bad.

Malicious Activity Summary

evasion persistence kinsing loader

Kinsing

Modifies Windows Firewall

Adds Run key to start application

Drops file in System32 directory

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 17:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-25 17:33

Reported

2024-01-25 17:35

Platform

win7-20231215-en

Max time kernel

150s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe"

Signatures

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.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\Windows32 = "C:\\Arquivos de programas\\Windows32.exe" C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\reg_0001.txt C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe

"C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram C:\Arquivos de programas\Windows32.exe RPC

Network

Country Destination Domain Proto
US 8.8.8.8:53 gsmtp185.google.com udp

Files

memory/2448-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2448-2-0x0000000000220000-0x0000000000221000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:33

Reported

2024-01-25 17:35

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe"

Signatures

Kinsing

loader kinsing

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.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\Windows32 = "C:\\Arquivos de programas\\Windows32.exe" C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\reg_0001.txt C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe

"C:\Users\Admin\AppData\Local\Temp\751abbc5a0f05d1b820100cb82287e01.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram C:\Arquivos de programas\Windows32.exe RPC

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 gsmtp185.google.com udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 16.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 145.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp

Files

memory/2792-0-0x0000000000F60000-0x0000000000F61000-memory.dmp

memory/2792-2-0x0000000000F60000-0x0000000000F61000-memory.dmp