Malware Analysis Report

2024-10-16 03:30

Sample ID 240803-cdtjfatgkc
Target 3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab
SHA256 3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab
Tags
banload downloader dropper evasion persistence privilege_escalation trojan
score
10/10

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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab

Threat Level: Known bad

The file 3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab was found to be: Known bad.

Malicious Activity Summary

banload downloader dropper evasion persistence privilege_escalation trojan

Banload

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

Checks BIOS information in registry

Event Triggered Execution: Component Object Model Hijacking

Unsigned PE

Modifies registry class

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 01:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 01:58

Reported

2024-08-03 02:00

Platform

win7-20240704-en

Max time kernel

13s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe"

Signatures

Banload

trojan dropper downloader banload

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\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.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\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A

Event Triggered Execution: Component Object Model Hijacking

persistence privilege_escalation

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\VersionIndependentProgID\ = "SrDrvWuHelper.SrDrvWuHelper" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3} C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\ = "SrDrvWuHelper Class" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\AppID = "{f32d97df-e3e5-4cb9-9e3e-0eb5b4e49801}" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32\ = "%systemroot%\\system32\\srhelper.dll" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32\ThreadingModel = "Both" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\VersionIndependentProgID C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe

"C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe"

Network

N/A

Files

memory/1656-0-0x0000000003B90000-0x0000000003D78000-memory.dmp

memory/1656-10-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-16-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-13-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-17-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-14-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-15-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/1656-19-0x0000000000400000-0x0000000001C84000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 01:58

Reported

2024-08-03 02:00

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe"

Signatures

Banload

trojan dropper downloader banload

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\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.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\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A

Event Triggered Execution: Component Object Model Hijacking

persistence privilege_escalation

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3} C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\ = "Broadcast Event Service" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32\ = "C:\\Windows\\System32\\msvidctl.dll" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6EEAF7AB-9B86-0A4B-E9E8-6422E70DF8B3}\InprocServer32\ThreadingModel = "Both" C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe

"C:\Users\Admin\AppData\Local\Temp\3a83b1c22e6cdc567b83f5000c9fdf84d7feb920eeb690ff38a294479c0933ab.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4424-0-0x0000000003F10000-0x00000000040F8000-memory.dmp

memory/4424-10-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-12-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-15-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-14-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-16-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-17-0x0000000000400000-0x0000000001C84000-memory.dmp

memory/4424-19-0x0000000000400000-0x0000000001C84000-memory.dmp