Malware Analysis Report

2025-06-16 06:53

Sample ID 241104-dc3ama1kc1
Target c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe
SHA256 c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939
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

c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939

Threat Level: Known bad

The file c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe 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

2024-11-04 02:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 02:52

Reported

2024-11-04 02:55

Platform

win7-20240729-en

Max time kernel

15s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe

"C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe"

Network

N/A

Files

memory/2604-0-0x0000000000180000-0x000000000043A000-memory.dmp

memory/2604-1-0x0000000000180000-0x000000000043A000-memory.dmp

memory/2604-2-0x0000000000180000-0x000000000043A000-memory.dmp

memory/2604-5-0x0000000000180000-0x000000000043A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-04 02:52

Reported

2024-11-04 02:55

Platform

win10v2004-20241007-en

Max time kernel

136s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.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\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe

"C:\Users\Admin\AppData\Local\Temp\c4cb4c6199e60c55d6294c1622180efb62b4c76fead44255d07f6d19d4f68939.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.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 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
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 10.27.171.150.in-addr.arpa udp

Files

memory/3556-0-0x00000000009C0000-0x0000000000C7A000-memory.dmp

memory/3556-1-0x00000000009C0000-0x0000000000C7A000-memory.dmp

memory/3556-2-0x00000000009C0000-0x0000000000C7A000-memory.dmp

memory/3556-4-0x00000000009C0000-0x0000000000C7A000-memory.dmp

memory/3556-7-0x00000000009C0000-0x0000000000C7A000-memory.dmp