Malware Analysis Report

2025-08-05 14:07

Sample ID 230807-nsdx3sgc7x
Target 9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04
SHA256 9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04
Tags
guloader downloader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04

Threat Level: Known bad

The file 9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04 was found to be: Known bad.

Malicious Activity Summary

guloader downloader

Guloader,Cloudeye

Unsigned PE

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-07 11:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-07 11:39

Reported

2023-08-07 11:41

Platform

win7-20230712-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe

"C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe"

Network

N/A

Files

memory/1356-56-0x00000000002F0000-0x00000000002F9000-memory.dmp

memory/1356-57-0x0000000076FE0000-0x00000000770B6000-memory.dmp

memory/1356-58-0x0000000076DF0000-0x0000000076F99000-memory.dmp

memory/1356-59-0x00000000002F0000-0x00000000002F9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-07 11:39

Reported

2023-08-07 11:41

Platform

win10v2004-20230703-en

Max time kernel

141s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe

"C:\Users\Admin\AppData\Local\Temp\9f6a013645a7cc8b62bd69913aa3e4b0337157631b0c83ee49346f3fbb1f0a04.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/4348-135-0x0000000002210000-0x0000000002219000-memory.dmp

memory/4348-136-0x0000000077E31000-0x0000000077F51000-memory.dmp

memory/4348-137-0x0000000000400000-0x0000000000417000-memory.dmp