Malware Analysis Report

2025-08-05 15:35

Sample ID 241031-yya4gsshrb
Target 0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e
SHA256 0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e
Tags
discovery evasion 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

0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e

Threat Level: Known bad

The file 0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e was found to be: Known bad.

Malicious Activity Summary

discovery evasion trojan

Modifies Windows Defender Real-time Protection settings

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

Identifies Wine through registry keys

Checks BIOS information in registry

Windows security modification

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 20:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 20:11

Reported

2024-10-31 20:25

Platform

win7-20240903-en

Max time kernel

117s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe"

Signatures

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe 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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe

"C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe"

Network

N/A

Files

memory/2480-0-0x00000000012F0000-0x00000000015AC000-memory.dmp

memory/2480-2-0x00000000012F0000-0x00000000015AC000-memory.dmp

memory/2480-1-0x00000000012F0000-0x00000000015AC000-memory.dmp

memory/2480-4-0x00000000012F0000-0x00000000015AC000-memory.dmp

memory/2480-6-0x00000000012F0000-0x00000000015AC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 20:11

Reported

2024-10-31 20:25

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

115s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe"

Signatures

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe 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\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe

"C:\Users\Admin\AppData\Local\Temp\0efa9cac51fa334fa1ebee313db11bd08d65ffdf4ed573cdecf071b4fce96b2e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 75.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
GB 2.22.144.81:80 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 udp
GB 2.22.144.81:80 tcp
GB 2.22.144.81:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 20.223.35.26:443 tcp
US 8.8.8.8:53 udp
N/A 52.111.236.21:443 tcp
US 8.8.8.8:53 udp
SE 192.229.221.95:80 tcp

Files

memory/4812-0-0x0000000000DD0000-0x000000000108C000-memory.dmp

memory/4812-2-0x0000000000DD0000-0x000000000108C000-memory.dmp

memory/4812-1-0x0000000000DD0000-0x000000000108C000-memory.dmp

memory/4812-4-0x0000000000DD0000-0x000000000108C000-memory.dmp

memory/4812-7-0x0000000000DD0000-0x000000000108C000-memory.dmp