Malware Analysis Report

2025-01-03 09:07

Sample ID 240620-mmcmdsxamn
Target 052ed20e6df58615795548b109e63b7e_JaffaCakes118
SHA256 e874318a783e27746be01b18fe9f7ddf57559284bd88c7ed85cdbcdd30d54b36
Tags
bootkit 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

e874318a783e27746be01b18fe9f7ddf57559284bd88c7ed85cdbcdd30d54b36

Threat Level: Shows suspicious behavior

The file 052ed20e6df58615795548b109e63b7e_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Program crash

Unsigned PE

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 10:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 10:34

Reported

2024-06-20 10:37

Platform

win7-20240508-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_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\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\mac = "D6-84-AC-6A-50-58" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\dlt = "1718879675" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38} C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\dlloadtime = "1718879675" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe"

Network

N/A

Files

memory/1596-0-0x0000000000400000-0x0000000000423000-memory.dmp

memory/1596-1-0x0000000000250000-0x0000000000280000-memory.dmp

memory/1596-2-0x0000000000280000-0x0000000000282000-memory.dmp

memory/1596-4-0x0000000000240000-0x0000000000241000-memory.dmp

memory/1596-8-0x00000000002D0000-0x00000000002D1000-memory.dmp

memory/1596-7-0x00000000002E0000-0x00000000002E1000-memory.dmp

memory/1596-6-0x0000000000590000-0x0000000000591000-memory.dmp

memory/1596-5-0x00000000005A0000-0x00000000005A1000-memory.dmp

memory/1596-10-0x00000000002F0000-0x00000000002F1000-memory.dmp

memory/1596-9-0x0000000000300000-0x0000000000301000-memory.dmp

memory/1596-11-0x0000000000400000-0x0000000000423000-memory.dmp

memory/1596-12-0x0000000000250000-0x0000000000280000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 10:34

Reported

2024-06-20 10:37

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe"

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38} C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\dlloadtime = "1718879675" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\mac = "FE-F5-0C-B5-D6-33" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\dlt = "1718879675" C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\052ed20e6df58615795548b109e63b7e_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4788 -ip 4788

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 1040

Network

Files

memory/4788-0-0x0000000000400000-0x0000000000423000-memory.dmp

memory/4788-1-0x00000000021A0000-0x00000000021D0000-memory.dmp

memory/4788-2-0x00000000022D0000-0x00000000022D2000-memory.dmp

memory/4788-8-0x0000000002330000-0x0000000002331000-memory.dmp

memory/4788-7-0x0000000002340000-0x0000000002341000-memory.dmp

memory/4788-6-0x0000000002430000-0x0000000002431000-memory.dmp

memory/4788-5-0x0000000002440000-0x0000000002441000-memory.dmp

memory/4788-4-0x0000000002190000-0x0000000002191000-memory.dmp

memory/4788-10-0x0000000002350000-0x0000000002351000-memory.dmp

memory/4788-9-0x0000000002360000-0x0000000002361000-memory.dmp

memory/4788-11-0x0000000000400000-0x0000000000423000-memory.dmp

memory/4788-12-0x00000000021A0000-0x00000000021D0000-memory.dmp