Malware Analysis Report

2025-08-05 12:51

Sample ID 240509-arj6taad77
Target ac76c1d0b31a8a3f61607cf317cc5270_NEIKI
SHA256 0778cdd0a1301956778108dcbf6a59a4075a04147a76b0beea289bd741b99303
Tags
bootkit evasion persistence
score
8/10

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
8/10

SHA256

0778cdd0a1301956778108dcbf6a59a4075a04147a76b0beea289bd741b99303

Threat Level: Likely malicious

The file ac76c1d0b31a8a3f61607cf317cc5270_NEIKI was found to be: Likely malicious.

Malicious Activity Summary

bootkit evasion persistence

Disables Task Manager via registry modification

Writes to the Master Boot Record (MBR)

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 00:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 00:26

Reported

2024-05-09 00:29

Platform

win7-20240215-en

Max time kernel

130s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe"

Signatures

Disables Task Manager via registry modification

evasion

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe"

Network

N/A

Files

memory/2972-0-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2972-1-0x0000000000890000-0x0000000000DBC000-memory.dmp

memory/2972-2-0x00000000083C0000-0x00000000088F8000-memory.dmp

memory/2972-3-0x0000000000370000-0x0000000000376000-memory.dmp

memory/2972-4-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2972-5-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2972-6-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2972-7-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2972-8-0x0000000074960000-0x000000007504E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 00:26

Reported

2024-05-09 00:29

Platform

win10v2004-20240508-en

Max time kernel

129s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe"

Signatures

Disables Task Manager via registry modification

evasion

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\ac76c1d0b31a8a3f61607cf317cc5270_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 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/5016-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

memory/5016-1-0x0000000000730000-0x0000000000C5C000-memory.dmp

memory/5016-2-0x0000000008A70000-0x0000000008FA8000-memory.dmp

memory/5016-3-0x0000000009560000-0x0000000009B04000-memory.dmp

memory/5016-4-0x0000000009050000-0x00000000090E2000-memory.dmp

memory/5016-5-0x00000000050E0000-0x00000000050E6000-memory.dmp

memory/5016-6-0x00000000745B0000-0x0000000074D60000-memory.dmp

memory/5016-7-0x0000000009040000-0x000000000904A000-memory.dmp

memory/5016-8-0x00000000745B0000-0x0000000074D60000-memory.dmp

memory/5016-9-0x00000000745BE000-0x00000000745BF000-memory.dmp

memory/5016-10-0x00000000745B0000-0x0000000074D60000-memory.dmp

memory/5016-11-0x00000000745B0000-0x0000000074D60000-memory.dmp