Malware Analysis Report

2025-06-16 03:39

Sample ID 240526-lgbmgadf7w
Target 7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439
SHA256 7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439
Tags
bootkit evasion persistence trojan
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439

Threat Level: Likely malicious

The file 7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439 was found to be: Likely malicious.

Malicious Activity Summary

bootkit evasion persistence trojan

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

Checks BIOS information in registry

Identifies Wine through registry keys

Checks whether UAC is enabled

Writes to the Master Boot Record (MBR)

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-26 09:29

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-26 09:29

Reported

2024-05-26 09:32

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe 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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe

"C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.196.99:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 99.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
BE 2.17.196.99:443 www.bing.com tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp

Files

memory/5040-0-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-3-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-4-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-5-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-6-0x0000000000400000-0x0000000001E0A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\pcsf.ini

MD5 681496ec06a1de0b86c016432b484d1c
SHA1 d7cd30308a7865424124b448638ab2701abacb11
SHA256 50ea92c083a43e75d9ddb9f578c18c146fe5202f208d1e3ee0c047c7b544dea8
SHA512 9626c2013693b6d8dc62a6c26115349f88085f3f90c1b8791d7ce52541fe2f62ccbfad56937d14f762d3960c5dca593f8aa7d6de04b102f5b41a638306d71de0

memory/5040-7-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-36-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-37-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-38-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-39-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-40-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-41-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-42-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-43-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/5040-44-0x0000000000400000-0x0000000001E0A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-26 09:29

Reported

2024-05-26 09:32

Platform

win7-20240508-en

Max time kernel

142s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe 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\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe

"C:\Users\Admin\AppData\Local\Temp\7d3b984935842e4136c0326246bd9c58b78b9cb1d19992168c4cd75e3674c439.exe"

Network

N/A

Files

memory/2056-0-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-1-0x00000000750F0000-0x00000000750F1000-memory.dmp

memory/2056-4-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-5-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-6-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-7-0x0000000000400000-0x0000000001E0A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\pcsf.ini

MD5 681496ec06a1de0b86c016432b484d1c
SHA1 d7cd30308a7865424124b448638ab2701abacb11
SHA256 50ea92c083a43e75d9ddb9f578c18c146fe5202f208d1e3ee0c047c7b544dea8
SHA512 9626c2013693b6d8dc62a6c26115349f88085f3f90c1b8791d7ce52541fe2f62ccbfad56937d14f762d3960c5dca593f8aa7d6de04b102f5b41a638306d71de0

memory/2056-36-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-37-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-38-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-39-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-40-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-41-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-42-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-43-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-44-0x0000000000400000-0x0000000001E0A000-memory.dmp

memory/2056-45-0x0000000000400000-0x0000000001E0A000-memory.dmp