Malware Analysis Report

2024-11-30 11:24

Sample ID 220509-kcfj7affcp
Target Invoice_47399.cmd
SHA256 b626826522cb18cec741b324a13d2b59c590b482efa73ecca4e93ec4ebd02405
Tags
kutaki
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

b626826522cb18cec741b324a13d2b59c590b482efa73ecca4e93ec4ebd02405

Threat Level: Known bad

The file Invoice_47399.cmd was found to be: Known bad.

Malicious Activity Summary

kutaki

Kutaki Executable

Kutaki family

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-09 08:27

Signatures

Kutaki Executable

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

Kutaki family

kutaki

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-09 08:27

Reported

2022-05-09 08:29

Platform

win7-20220414-en

Max time kernel

47s

Max time network

52s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe"

Signatures

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /c C:\Users\Admin\AppData\Local\Temp\

Network

N/A

Files

memory/1932-56-0x00000000757C1000-0x00000000757C3000-memory.dmp

memory/2036-57-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-09 08:27

Reported

2022-05-09 08:29

Platform

win10v2004-20220414-en

Max time kernel

94s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe"

Signatures

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4840 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe C:\Windows\SysWOW64\cmd.exe
PID 4840 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe C:\Windows\SysWOW64\cmd.exe
PID 4840 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice_47399.exe"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /c C:\Users\Admin\AppData\Local\Temp\

Network

Country Destination Domain Proto
US 13.89.178.26:443 tcp

Files

memory/4632-132-0x0000000000000000-mapping.dmp