Malware Analysis Report

2025-08-05 14:07

Sample ID 230807-lcdw2afg9v
Target 9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034
SHA256 9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034
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

9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034

Threat Level: Known bad

The file 9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034 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 09:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-07 09:22

Reported

2023-08-07 09:25

Platform

win7-20230712-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe

"C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe"

Network

N/A

Files

memory/3036-56-0x0000000000250000-0x0000000000261000-memory.dmp

memory/3036-57-0x0000000000250000-0x0000000000261000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-07 09:22

Reported

2023-08-07 09:25

Platform

win10v2004-20230703-en

Max time kernel

123s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe

"C:\Users\Admin\AppData\Local\Temp\9f538c5e89121892ee4b8a72bbbde175bd33aff319451634a8dd233d645e7034.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 74.239.69.13.in-addr.arpa udp

Files

memory/4812-135-0x0000000002200000-0x0000000002211000-memory.dmp

memory/4812-136-0x0000000002200000-0x0000000002211000-memory.dmp