Malware Analysis Report

2025-03-15 05:43

Sample ID 240508-1w96xacb76
Target 6d9af331f54162af9a1749c91e956860_NEIKI
SHA256 d4ed979de791158ae25a98d7f4a36fe32411356aaa2a2809d57a31df6d23ee5a
Tags
aspackv2 bootkit persistence
score
7/10

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
7/10

SHA256

d4ed979de791158ae25a98d7f4a36fe32411356aaa2a2809d57a31df6d23ee5a

Threat Level: Shows suspicious behavior

The file 6d9af331f54162af9a1749c91e956860_NEIKI was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 bootkit persistence

ASPack v2.12-2.42

Writes to the Master Boot Record (MBR)

Unsigned PE

Enumerates physical storage devices

Modifies registry class

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 22:01

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 22:01

Reported

2024-05-08 22:03

Platform

win7-20240508-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.yyebook.com udp

Files

memory/2024-0-0x0000000000400000-0x000000000078C000-memory.dmp

memory/2024-1-0x0000000000250000-0x0000000000251000-memory.dmp

memory/2024-3-0x0000000003410000-0x0000000003411000-memory.dmp

memory/2024-5-0x0000000000400000-0x000000000078C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 22:01

Reported

2024-05-08 22:03

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\6d9af331f54162af9a1749c91e956860_NEIKI.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 www.yyebook.com udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/3328-0-0x0000000000400000-0x000000000078C000-memory.dmp

memory/3328-1-0x0000000000990000-0x0000000000991000-memory.dmp

memory/3328-3-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

memory/3328-5-0x0000000000400000-0x000000000078C000-memory.dmp