Malware Analysis Report

2024-10-16 03:30

Sample ID 240811-w4emra1hpl
Target Black Mesa Monitor Screensaver.scr
SHA256 932b803b498308d97782847fc00c6f54dfacc847aaf24ffb658064f3622994fd
Tags
discovery banload downloader dropper 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

932b803b498308d97782847fc00c6f54dfacc847aaf24ffb658064f3622994fd

Threat Level: Known bad

The file Black Mesa Monitor Screensaver.scr was found to be: Known bad.

Malicious Activity Summary

discovery banload downloader dropper trojan

Banload

Checks BIOS information in registry

System Location Discovery: System Language Discovery

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 18:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 18:28

Reported

2024-08-11 18:28

Platform

win7-20240704-en

Max time kernel

1s

Max time network

5s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr" /S

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr

"C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr" /S

Network

N/A

Files

memory/2056-0-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-1-0x0000000003010000-0x00000000031E9000-memory.dmp

memory/2056-7-0x0000000003010000-0x00000000031E9000-memory.dmp

memory/2056-12-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-13-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-16-0x00000000003E0000-0x0000000000400000-memory.dmp

memory/2056-15-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-20-0x0000000003010000-0x00000000031E9000-memory.dmp

memory/2056-17-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-19-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/2056-23-0x0000000003010000-0x00000000031E9000-memory.dmp

memory/2056-25-0x0000000003010000-0x00000000031E9000-memory.dmp

memory/2056-27-0x0000000000400000-0x0000000000A2B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 18:28

Reported

2024-08-11 18:28

Platform

win10v2004-20240802-en

Max time kernel

16s

Max time network

7s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr" /S

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\Black Mesa Monitor Screensaver.scr N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{251F89F4-807B-1861-D9E5-1E017009BD63}\AutoConvertTo C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{251F89F4-807B-1861-D9E5-1E017009BD63}\AutoConvertTo\ = "{00020803-0000-0000-C000-000000000046}" C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{251F89F4-807B-1861-D9E5-1E017009BD63} C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr

"C:\Users\Admin\AppData\Local\Temp\Black Mesa Monitor Screensaver.scr" /S

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=3996 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 36.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/348-0-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-2-0x0000000003CD0000-0x0000000003EA9000-memory.dmp

memory/348-8-0x0000000003CD0000-0x0000000003EA9000-memory.dmp

memory/348-13-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-17-0x0000000003CA0000-0x0000000003CC0000-memory.dmp

memory/348-16-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-14-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-21-0x0000000003CD0000-0x0000000003EA9000-memory.dmp

memory/348-20-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-18-0x0000000000400000-0x0000000000A2B000-memory.dmp

memory/348-23-0x0000000003CD0000-0x0000000003EA9000-memory.dmp

memory/348-25-0x0000000003CD0000-0x0000000003EA9000-memory.dmp

memory/348-27-0x0000000000400000-0x0000000000A2B000-memory.dmp