Malware Analysis Report

2024-11-30 11:26

Sample ID 220117-tq8mkabeej
Target image.cmd
SHA256 a75b04b359e9fba84407f4763ee90c36031685de4ea4b38020f9913b815baf71
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

a75b04b359e9fba84407f4763ee90c36031685de4ea4b38020f9913b815baf71

Threat Level: Known bad

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

Malicious Activity Summary

kutaki

Kutaki family

Kutaki Executable

Checks computer location settings

Drops file in Windows directory

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-01-17 16:16

Signatures

Kutaki Executable

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

Kutaki family

kutaki

Analysis: behavioral1

Detonation Overview

Submitted

2022-01-17 16:16

Reported

2022-01-17 16:19

Platform

win7-en-20211208

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\image.cmd.exe"

Signatures

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1592 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 1592 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 1592 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 1592 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\image.cmd.exe

"C:\Users\Admin\AppData\Local\Temp\image.cmd.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\DllHost.exe

C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}

Network

N/A

Files

memory/1592-54-0x0000000000230000-0x0000000000236000-memory.dmp

memory/1592-55-0x0000000000230000-0x000000000023A000-memory.dmp

memory/1592-56-0x0000000075D51000-0x0000000075D53000-memory.dmp

memory/752-57-0x0000000000000000-mapping.dmp

memory/752-60-0x0000000000700000-0x0000000000702000-memory.dmp

memory/1788-61-0x0000000000220000-0x0000000000222000-memory.dmp

memory/1788-62-0x0000000000340000-0x0000000000341000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-01-17 16:16

Reported

2022-01-17 16:19

Platform

win10v2004-en-20220113

Max time kernel

4265058s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\image.cmd.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\cmd.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Debug\WIA\wiatrace.log C:\Windows\SysWOW64\mspaint.exe N/A

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\system32\MusNotification.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\MusNotification.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\system32\MusNotification.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\MusNotification.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3288 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 3288 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 3288 wrote to memory of 3528 N/A C:\Users\Admin\AppData\Local\Temp\image.cmd.exe C:\Windows\SysWOW64\cmd.exe
PID 3528 wrote to memory of 3304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\mspaint.exe
PID 3528 wrote to memory of 3304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\mspaint.exe
PID 3528 wrote to memory of 3304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\mspaint.exe

Processes

C:\Users\Admin\AppData\Local\Temp\image.cmd.exe

"C:\Users\Admin\AppData\Local\Temp\image.cmd.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\mspaint.exe

"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\FILE.bmp"

C:\Windows\system32\MusNotification.exe

C:\Windows\system32\MusNotification.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 time.windows.com udp
US 8.8.8.8:53 slscr.update.microsoft.com udp
US 52.242.101.226:443 slscr.update.microsoft.com tcp
NL 40.119.148.38:123 time.windows.com udp
US 8.8.8.8:53 fe3cr.delivery.mp.microsoft.com udp
US 8.8.8.8:53 fe3cr.delivery.mp.microsoft.com udp
US 40.125.122.151:443 fe3cr.delivery.mp.microsoft.com tcp
US 8.8.8.8:53 displaycatalog.mp.microsoft.com udp
IE 20.54.110.249:443 displaycatalog.mp.microsoft.com tcp
US 8.8.8.8:53 arc.msn.com udp
US 52.184.206.73:443 arc.msn.com tcp
IE 20.54.110.249:443 displaycatalog.mp.microsoft.com tcp
US 8.8.8.8:53 slscr.update.microsoft.com udp
US 52.242.101.226:443 slscr.update.microsoft.com tcp
US 8.8.8.8:53 ris.api.iris.microsoft.com udp
US 52.252.42.28:443 ris.api.iris.microsoft.com tcp
US 52.242.101.226:443 slscr.update.microsoft.com tcp
US 8.8.8.8:53 img-prod-cms-rt-microsoft-com.akamaized.net udp
FR 2.22.147.48:443 img-prod-cms-rt-microsoft-com.akamaized.net tcp
FR 2.18.105.186:80 go.microsoft.com tcp
US 8.8.8.8:53 dmd.metaservices.microsoft.com udp
US 52.188.50.245:80 dmd.metaservices.microsoft.com tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp

Files

memory/3288-130-0x0000000000950000-0x0000000000956000-memory.dmp

memory/3288-131-0x0000000000950000-0x000000000095A000-memory.dmp

memory/3528-132-0x0000000000000000-mapping.dmp

memory/3304-133-0x0000000000000000-mapping.dmp