Malware Analysis Report

2025-08-05 20:45

Sample ID 240302-2ptq1sab21
Target Nezur_External.zip
SHA256 89c68ff666770a482787e6d27b3c5b5c6efa46fd09c4fa64758f37995b218049
Tags
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 Overview

score
8/10

SHA256

89c68ff666770a482787e6d27b3c5b5c6efa46fd09c4fa64758f37995b218049

Threat Level: Likely malicious

The file Nezur_External.zip was found to be: Likely malicious.

Malicious Activity Summary

persistence

Sets service image path in registry

Unsigned PE

Suspicious behavior: LoadsDriver

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-02 22:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-02 22:45

Reported

2024-03-02 22:56

Platform

win10-20240221-en

Max time kernel

573s

Max time network

575s

Command Line

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

Signatures

Sets service image path in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\frAQBc8Wsa1xVPfv\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\frAQBc8Wsa1xVPfv" C:\Users\Admin\AppData\Local\Temp\Nezur.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Nezur.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Nezur.exe N/A

Suspicious use of FindShellTrayWindow

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 129.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 233.17.178.52.in-addr.arpa udp
NL 52.142.223.178:80 tcp

Files

N/A