Malware Analysis Report

2024-10-16 06:59

Sample ID 240610-jpkh8seg94
Target BALD.WIN_Fortnite_External.exe
SHA256 07c40b80e0caeb0e0dbd4b9a324c63fa2984f0be8549f312a292dceeb6bb4e79
Tags
themida evasion trojan
score
9/10

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
9/10

SHA256

07c40b80e0caeb0e0dbd4b9a324c63fa2984f0be8549f312a292dceeb6bb4e79

Threat Level: Likely malicious

The file BALD.WIN_Fortnite_External.exe was found to be: Likely malicious.

Malicious Activity Summary

themida evasion trojan

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Themida packer

Checks BIOS information in registry

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 07:50

Signatures

Themida packer

themida
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

2024-06-10 07:50

Reported

2024-06-10 07:55

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe N/A

Themida packer

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Processes

C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe

"C:\Users\Admin\AppData\Local\Temp\BALD.WIN_Fortnite_External.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 203.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 233.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4500-0-0x00007FFA21850000-0x00007FFA21852000-memory.dmp

memory/4500-4-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-2-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-1-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-3-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-5-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-6-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-7-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp

memory/4500-8-0x00007FF6D8A50000-0x00007FF6D972F000-memory.dmp