Malware Analysis Report

2025-08-05 18:14

Sample ID 241117-rs5ycasamb
Target UA.exe
SHA256 bcd658522045492bd070705cfc6cd0cc089cf420956fa8cdd3a196be29e25574
Tags
evasion trojan
score
9/10

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
9/10

SHA256

bcd658522045492bd070705cfc6cd0cc089cf420956fa8cdd3a196be29e25574

Threat Level: Likely malicious

The file UA.exe was found to be: Likely malicious.

Malicious Activity Summary

evasion trojan

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

Checks BIOS information in registry

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in System32 directory

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 14:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 14:28

Reported

2024-11-17 14:28

Platform

win7-20240903-en

Max time kernel

15s

Max time network

18s

Command Line

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2879} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2859} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2869} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\IME\IMETC\{69CD1F2D-DF68-4E23-9108-1B70783F2879} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2899} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2444} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-UPDATE} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2893} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2892} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2859} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A

Suspicious behavior: RenamesItself

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

Processes

C:\Users\Admin\AppData\Local\Temp\UA.exe

"C:\Users\Admin\AppData\Local\Temp\UA.exe"

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

N/A

Files

memory/2364-0-0x0000000140000000-0x0000000142962000-memory.dmp

memory/2364-1-0x0000000077CB0000-0x0000000077CB2000-memory.dmp

memory/2364-2-0x0000000140000000-0x0000000142962000-memory.dmp

memory/2364-4-0x0000000140000000-0x0000000142962000-memory.dmp

memory/2364-3-0x0000000140000000-0x0000000142962000-memory.dmp

memory/2364-6-0x0000000140000000-0x0000000142962000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 14:28

Reported

2024-11-17 14:30

Platform

win10v2004-20241007-en

Max time kernel

106s

Max time network

112s

Command Line

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2879} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2859} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2869} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\IME\IMETC\{69CD1F2D-DF68-4E23-9108-1B70783F2879} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2899} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2444} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2859} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-UPDATE} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2893} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A
File opened for modification C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2892} C:\Users\Admin\AppData\Local\Temp\UA.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

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

Processes

C:\Users\Admin\AppData\Local\Temp\UA.exe

"C:\Users\Admin\AppData\Local\Temp\UA.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp

Files

memory/3016-0-0x0000000140000000-0x0000000142962000-memory.dmp

memory/3016-1-0x00007FF874470000-0x00007FF874472000-memory.dmp

memory/3016-2-0x0000000140000000-0x0000000142962000-memory.dmp

memory/3016-3-0x0000000140000000-0x0000000142962000-memory.dmp

memory/3016-4-0x0000000140000000-0x0000000142962000-memory.dmp

memory/3016-6-0x0000000140000000-0x0000000142962000-memory.dmp