Malware Analysis Report

2024-10-19 07:05

Sample ID 240807-x9l5fsweja
Target 12345.rar
SHA256 c89df9ced3834fcfabe20b4e657da09f6cc62f3e974086401f79e282d983e59c
Tags
upx nanocore
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

c89df9ced3834fcfabe20b4e657da09f6cc62f3e974086401f79e282d983e59c

Threat Level: Known bad

The file 12345.rar was found to be: Known bad.

Malicious Activity Summary

upx nanocore

Nanocore family

UPX packed file

AutoIT Executable

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Modifies registry class

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-07 19:33

Signatures

Nanocore family

nanocore

UPX packed file

upx
Description Indicator Process Target
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AutoIT Executable

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Unsigned PE

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Analysis: behavioral1

Detonation Overview

Submitted

2024-08-07 19:33

Reported

2024-08-07 19:36

Platform

win7-20240705-en

Max time kernel

143s

Max time network

122s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\12345.rar

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\VideoLAN\VLC\vlc.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\12345.rar

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\12345.rar

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\12345.rar

C:\Program Files\VideoLAN\VLC\vlc.exe

"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\12345.rar"

Network

N/A

Files

memory/2956-30-0x000007FEF74D0000-0x000007FEF7504000-memory.dmp

memory/2956-29-0x000000013FBB0000-0x000000013FCA8000-memory.dmp

memory/2956-33-0x000007FEF7490000-0x000007FEF74A7000-memory.dmp

memory/2956-34-0x000007FEF7470000-0x000007FEF7481000-memory.dmp

memory/2956-35-0x000007FEF7450000-0x000007FEF7467000-memory.dmp

memory/2956-32-0x000007FEF74B0000-0x000007FEF74C8000-memory.dmp

memory/2956-36-0x000007FEF6F50000-0x000007FEF6F61000-memory.dmp

memory/2956-38-0x000007FEF6F10000-0x000007FEF6F21000-memory.dmp

memory/2956-37-0x000007FEF6F30000-0x000007FEF6F4D000-memory.dmp

memory/2956-31-0x000007FEF6260000-0x000007FEF6516000-memory.dmp

memory/2956-40-0x000007FEF6EC0000-0x000007FEF6F01000-memory.dmp

memory/2956-39-0x000007FEF6050000-0x000007FEF625B000-memory.dmp

memory/2956-43-0x000007FEF6780000-0x000007FEF6798000-memory.dmp

memory/2956-45-0x000007FEF6010000-0x000007FEF6021000-memory.dmp

memory/2956-47-0x000007FEF5FD0000-0x000007FEF5FEB000-memory.dmp

memory/2956-46-0x000007FEF5FF0000-0x000007FEF6001000-memory.dmp

memory/2956-44-0x000007FEF6030000-0x000007FEF6041000-memory.dmp

memory/2956-42-0x000007FEF67A0000-0x000007FEF67C1000-memory.dmp

memory/2956-48-0x000007FEF5FB0000-0x000007FEF5FC1000-memory.dmp

memory/2956-49-0x000007FEF5F90000-0x000007FEF5FA8000-memory.dmp

memory/2956-50-0x000007FEF5F60000-0x000007FEF5F90000-memory.dmp

memory/2956-51-0x000007FEF5EF0000-0x000007FEF5F57000-memory.dmp

memory/2956-53-0x000007FEF5E50000-0x000007FEF5E61000-memory.dmp

memory/2956-52-0x000007FEF5E70000-0x000007FEF5EEC000-memory.dmp

memory/2956-54-0x000007FEF5DF0000-0x000007FEF5E47000-memory.dmp

memory/2956-55-0x000007FEF5DC0000-0x000007FEF5DE8000-memory.dmp

memory/2956-56-0x000007FEF5D90000-0x000007FEF5DB4000-memory.dmp

memory/2956-59-0x000007FEF5D20000-0x000007FEF5D31000-memory.dmp

memory/2956-58-0x000007FEF5D40000-0x000007FEF5D63000-memory.dmp

memory/2956-63-0x000007FEF7980000-0x000007FEF7990000-memory.dmp

memory/2956-62-0x000007FEF2050000-0x000007FEF2061000-memory.dmp

memory/2956-64-0x000007FEF19B0000-0x000007FEF19DF000-memory.dmp

memory/2956-61-0x000007FEF2070000-0x000007FEF2091000-memory.dmp

memory/2956-60-0x000007FEF5D00000-0x000007FEF5D12000-memory.dmp

memory/2956-57-0x000007FEF5D70000-0x000007FEF5D88000-memory.dmp

memory/2956-65-0x000007FEF05A0000-0x000007FEF05B1000-memory.dmp

memory/2956-66-0x000007FEF0580000-0x000007FEF0596000-memory.dmp

memory/2956-68-0x000007FEF0460000-0x000007FEF04A2000-memory.dmp

memory/2956-70-0x000007FEEF9F0000-0x000007FEEFA5D000-memory.dmp

memory/2956-69-0x000007FEF00D0000-0x000007FEF0132000-memory.dmp

memory/2956-67-0x000007FEF04B0000-0x000007FEF0575000-memory.dmp

memory/2956-41-0x000007FEF4580000-0x000007FEF5630000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-07 19:33

Reported

2024-08-07 19:36

Platform

win10v2004-20240802-en

Max time kernel

92s

Max time network

103s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\12345.rar

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\12345.rar

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp

Files

N/A