Malware Analysis Report

2024-10-24 18:45

Sample ID 231012-exnhmsed3w
Target 804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33
SHA256 804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33
Tags
banload downloader dropper persistence 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

804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33

Threat Level: Known bad

The file 804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33 was found to be: Known bad.

Malicious Activity Summary

banload downloader dropper persistence trojan

Banload

Checks BIOS information in registry

Registers COM server for autorun

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-12 04:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-12 04:19

Reported

2023-10-13 06:26

Platform

win7-20230831-en

Max time kernel

122s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe"

Signatures

Banload

trojan dropper downloader banload

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Registers COM server for autorun

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ = "%SystemRoot%\\System32\\pla.dll" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ThreadingModel = "both" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\LocalServer32\ = "%SystemRoot%\\system32\\plasrv.exe" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\LocalServer32\ = "%SystemRoot%\\system32\\plasrv.exe" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ProgID C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ProgID\ = "PLA.BootTraceSession.1" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\VersionIndependentProgID C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ThreadingModel = "both" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\Version C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ = "BootTraceSession" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ = "%SystemRoot%\\System32\\pla.dll" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\VersionIndependentProgID\ = "PLA.BootTraceSession" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1} C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\AppID = "{03837503-098b-11d8-9414-505054503030}" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\TypeLib C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\TypeLib\ = "{03837500-098B-11D8-9414-505054503030}" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\Version\ = "1.0" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe

"C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe"

Network

N/A

Files

memory/2960-0-0x0000000002330000-0x000000000251A000-memory.dmp

memory/2960-7-0x0000000002330000-0x000000000251A000-memory.dmp

memory/2960-12-0x0000000140000000-0x0000000140479000-memory.dmp

memory/2960-13-0x0000000140000000-0x0000000140479000-memory.dmp

memory/2960-14-0x0000000002330000-0x000000000251A000-memory.dmp

memory/2960-16-0x0000000001FA0000-0x0000000001FA1000-memory.dmp

memory/2960-17-0x0000000002330000-0x000000000251A000-memory.dmp

memory/2960-19-0x0000000140000000-0x0000000140479000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-12 04:19

Reported

2023-10-13 06:27

Platform

win10v2004-20230915-en

Max time kernel

138s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe"

Signatures

Banload

trojan dropper downloader banload

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Registers COM server for autorun

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ = "C:\\Windows\\System32\\IME\\IMEJP\\imjpapi.dll" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ = "C:\\Windows\\System32\\IME\\IMEJP\\imjpapi.dll" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\VersionIndependentProgID C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ProgID C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ProgID\ = "MSIME.Japan.FEDict.15" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\VersionIndependentProgID\ = "MSIME.Japan.FEDict" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1} C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B1243ED3-4B27-341D-7712-354446A630B1}\ = "Microsoft IME (Japanese) IFEDict" C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe

"C:\Users\Admin\AppData\Local\Temp\804a8d91b84609e80aa477f98b8c3c85d37b7b3d14d7bf1775928246f11e7e33.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 170.117.168.52.in-addr.arpa udp

Files

memory/3548-0-0x0000000002670000-0x000000000285A000-memory.dmp

memory/3548-7-0x0000000002670000-0x000000000285A000-memory.dmp

memory/3548-12-0x0000000140000000-0x0000000140479000-memory.dmp

memory/3548-13-0x0000000140000000-0x0000000140479000-memory.dmp

memory/3548-14-0x0000000002670000-0x000000000285A000-memory.dmp

memory/3548-16-0x0000000002EA0000-0x0000000002EA1000-memory.dmp

memory/3548-17-0x0000000002670000-0x000000000285A000-memory.dmp

memory/3548-19-0x0000000140000000-0x0000000140479000-memory.dmp