Malware Analysis Report

2025-06-15 23:35

Sample ID 241031-vc7nsasqgl
Target 83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118
SHA256 767b6ccc725c36f7e1dcb7fd827595f8a93986fadfa8bf5fe82c69d9cc2fc264
Tags
bootkit discovery persistence
score
6/10

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
6/10

SHA256

767b6ccc725c36f7e1dcb7fd827595f8a93986fadfa8bf5fe82c69d9cc2fc264

Threat Level: Shows suspicious behavior

The file 83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

System Location Discovery: System Language Discovery

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 16:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 16:51

Reported

2024-10-31 16:54

Platform

win7-20240903-en

Max time kernel

140s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.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\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe"

Network

N/A

Files

memory/3056-7-0x0000000000950000-0x0000000000951000-memory.dmp

memory/3056-6-0x0000000000950000-0x0000000000951000-memory.dmp

memory/3056-5-0x0000000000950000-0x0000000000951000-memory.dmp

memory/3056-4-0x0000000000940000-0x0000000000941000-memory.dmp

memory/3056-3-0x0000000000940000-0x0000000000941000-memory.dmp

memory/3056-2-0x0000000000940000-0x0000000000941000-memory.dmp

memory/3056-1-0x0000000000940000-0x0000000000941000-memory.dmp

memory/3056-0-0x0000000001000000-0x0000000001078000-memory.dmp

memory/3056-16-0x0000000000960000-0x0000000000961000-memory.dmp

memory/3056-15-0x0000000000980000-0x0000000000981000-memory.dmp

memory/3056-14-0x0000000000990000-0x0000000000991000-memory.dmp

memory/3056-13-0x0000000000290000-0x0000000000291000-memory.dmp

memory/3056-12-0x0000000000170000-0x0000000000171000-memory.dmp

memory/3056-11-0x0000000000930000-0x0000000000933000-memory.dmp

memory/3056-10-0x00000000009B0000-0x00000000009B1000-memory.dmp

memory/3056-9-0x00000000009A0000-0x00000000009A1000-memory.dmp

memory/3056-8-0x0000000000940000-0x0000000000942000-memory.dmp

memory/3056-17-0x0000000001000000-0x0000000001078000-memory.dmp

memory/3056-18-0x0000000000940000-0x0000000000941000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 16:51

Reported

2024-10-31 16:54

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe"

Signatures

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\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\83847f678c82e8f957b8e2c9393ceb94_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 107.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4596-0-0x0000000001000000-0x0000000001078000-memory.dmp

memory/4596-4-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-18-0x0000000000C50000-0x0000000000C52000-memory.dmp

memory/4596-22-0x00000000007A0000-0x00000000007A3000-memory.dmp

memory/4596-27-0x0000000000C70000-0x0000000000C71000-memory.dmp

memory/4596-26-0x0000000000C80000-0x0000000000C81000-memory.dmp

memory/4596-25-0x0000000000C90000-0x0000000000C91000-memory.dmp

memory/4596-24-0x00000000006D0000-0x00000000006D1000-memory.dmp

memory/4596-23-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/4596-21-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

memory/4596-17-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-16-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-15-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-14-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-13-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-12-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-11-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-10-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-9-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-8-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-7-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-6-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-5-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-20-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

memory/4596-19-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/4596-3-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-2-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-1-0x0000000000C50000-0x0000000000C51000-memory.dmp

memory/4596-28-0x0000000001000000-0x0000000001078000-memory.dmp

memory/4596-29-0x0000000000C50000-0x0000000000C51000-memory.dmp