Malware Analysis Report

2025-08-10 14:16

Sample ID 241016-bne85azbkp
Target 4acb9bcf529e6c64385205ef112eab30_JaffaCakes118
SHA256 e3424fe2569d8b4457a4210e79aa7f8db37a4bb1d3d0683272d04c37ed808dbf
Tags
bootkit discovery persistence
score
6/10

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
6/10

SHA256

e3424fe2569d8b4457a4210e79aa7f8db37a4bb1d3d0683272d04c37ed808dbf

Threat Level: Shows suspicious behavior

The file 4acb9bcf529e6c64385205ef112eab30_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery persistence

Writes to the Master Boot Record (MBR)

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 01:17

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 01:17

Reported

2024-10-16 01:17

Platform

win10v2004-20241007-en

Max time kernel

1s

Max time network

5s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_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\4acb9bcf529e6c64385205ef112eab30_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\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp

Files

memory/3680-0-0x0000000000401000-0x0000000000405000-memory.dmp

memory/3680-1-0x00000000008F0000-0x0000000000912000-memory.dmp

memory/3680-2-0x0000000000400000-0x000000000042B000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 01:17

Reported

2024-10-16 01:19

Platform

win7-20240903-en

Max time kernel

0s

Max time network

3s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_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\4acb9bcf529e6c64385205ef112eab30_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\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4acb9bcf529e6c64385205ef112eab30_JaffaCakes118.exe"

Network

N/A

Files

memory/2660-0-0x0000000000401000-0x0000000000405000-memory.dmp

memory/2660-1-0x00000000004A0000-0x00000000004C2000-memory.dmp

memory/2660-2-0x0000000000400000-0x000000000042B000-memory.dmp