Malware Analysis Report

2024-09-23 13:20

Sample ID 240612-ytntsaybke
Target a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118
SHA256 1e29fc8ac062a107c7a052b187db87daf694da22c0501aa35f8addcf0275065f
Tags
bootkit persistence
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
6/10

SHA256

1e29fc8ac062a107c7a052b187db87daf694da22c0501aa35f8addcf0275065f

Threat Level: Shows suspicious behavior

The file a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Modifies registry class

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-12 20:04

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 20:04

Reported

2024-06-12 20:07

Platform

win10v2004-20240508-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_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\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CAA2D3B1-4BB5-4a45-A17A-122773379D99} C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CAA2D3B1-4BB5-4a45-A17A-122773379D99}\ProcID = "{28C4E584-B1E4-123C-3030-303133067200}" C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe"

Network

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 20:04

Reported

2024-06-12 20:07

Platform

win7-20240611-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_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\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CAA2D3B1-4BB5-4a45-A17A-122773379D99} C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CAA2D3B1-4BB5-4a45-A17A-122773379D99}\ProcID = "{248D269C-24EC-123C-3030-30313306D700}" C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a21f55dbec59074b29dc700fc59afa5a_JaffaCakes118.exe"

Network

N/A

Files

N/A