Malware Analysis Report

2025-01-03 09:28

Sample ID 240604-y3cg4sah47
Target 9620c4254536b896e54653ae45177d23_JaffaCakes118
SHA256 ab4256602c855c568f707472384ead77cefa7867e65760b6e5f6b8c33fa466c5
Tags
bootkit evasion persistence trojan
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

ab4256602c855c568f707472384ead77cefa7867e65760b6e5f6b8c33fa466c5

Threat Level: Likely malicious

The file 9620c4254536b896e54653ae45177d23_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

bootkit evasion persistence trojan

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

Checks BIOS information in registry

Identifies Wine through registry keys

Writes to the Master Boot Record (MBR)

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 20:18

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 20:18

Reported

2024-06-04 20:20

Platform

win10v2004-20240508-en

Max time kernel

140s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.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 43.43.201.23.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp

Files

memory/920-0-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-1-0x00000000777E4000-0x00000000777E6000-memory.dmp

memory/920-3-0x0000000000401000-0x0000000000814000-memory.dmp

memory/920-4-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-5-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-6-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-7-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-8-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-9-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-10-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-11-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-12-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-13-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-14-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-15-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-16-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-17-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-18-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-19-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-20-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-21-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-22-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-23-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-24-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-25-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-26-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-27-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-28-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-29-0x0000000000400000-0x0000000002672000-memory.dmp

memory/920-30-0x0000000000400000-0x0000000002672000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 20:18

Reported

2024-06-04 20:20

Platform

win7-20240220-en

Max time kernel

140s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.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\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9620c4254536b896e54653ae45177d23_JaffaCakes118.exe"

Network

N/A

Files

memory/2036-0-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-1-0x00000000779C0000-0x00000000779C2000-memory.dmp

memory/2036-3-0x0000000000401000-0x0000000000814000-memory.dmp

memory/2036-4-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-5-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-6-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-7-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-8-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-9-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-10-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-11-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-12-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-13-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-14-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-15-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-16-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-17-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-18-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-19-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-20-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-21-0x0000000000400000-0x0000000002672000-memory.dmp

memory/2036-22-0x0000000000400000-0x0000000002672000-memory.dmp