Malware Analysis Report

2025-06-16 03:39

Sample ID 240526-j9w3rscc4w
Target WinXP.Horror.Destructive (Created By WobbyChip).exe
SHA256 3b64ce283febf3207dd20c99fc53de65b07044231eb544c4c41de374a2571c5c
Tags
bootkit evasion 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 Overview

score
10/10

SHA256

3b64ce283febf3207dd20c99fc53de65b07044231eb544c4c41de374a2571c5c

Threat Level: Known bad

The file WinXP.Horror.Destructive (Created By WobbyChip).exe was found to be: Known bad.

Malicious Activity Summary

bootkit evasion persistence trojan

Modifies WinLogon for persistence

UAC bypass

Disables RegEdit via registry modification

Disables Task Manager via registry modification

Checks whether UAC is enabled

Writes to the Master Boot Record (MBR)

Unsigned PE

Modifies Control Panel

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

System policy modification

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-26 08:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-26 08:22

Reported

2024-05-26 08:29

Platform

win11-20240508-en

Max time kernel

325s

Max time network

273s

Command Line

"C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "0" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Disables RegEdit via registry modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Disables Task Manager via registry modification

evasion

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Delete value \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Modifies Control Panel

evasion
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Control Panel\Mouse C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Control Panel\Mouse\SwapMouseButtons = "1" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDesktop = "1" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\HideFastUserSwitching = "1" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe

"C:\Users\Admin\AppData\Local\Temp\WinXP.Horror.Destructive (Created By WobbyChip).exe"

C:\Windows\explorer.exe

explorer.exe

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x00000000000004C8 0x00000000000004BC

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\sihost.exe

sihost.exe

Network

Files

memory/1772-0-0x0000000003FD0000-0x0000000003FD1000-memory.dmp

memory/1772-1-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-2-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-3-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-4-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-5-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-6-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-9-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-10-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-11-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-12-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-13-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-14-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-15-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-16-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-17-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-18-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-19-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-20-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-21-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-22-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-23-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-24-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-25-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-27-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-28-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-31-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-32-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-33-0x0000000000400000-0x0000000003DF3000-memory.dmp

memory/1772-34-0x0000000000400000-0x0000000003DF3000-memory.dmp