Malware Analysis Report

2025-08-10 14:16

Sample ID 241016-b91f7a1dkk
Target 4ae5f6cfb1c798cafb33f6e3d2f46320_JaffaCakes118
SHA256 d8f175b97746dd48ebe05ab4ba9822388be3ad901c9220675625c6615a3fa7e2
Tags
bootkit persistence discovery
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

d8f175b97746dd48ebe05ab4ba9822388be3ad901c9220675625c6615a3fa7e2

Threat Level: Shows suspicious behavior

The file 4ae5f6cfb1c798cafb33f6e3d2f46320_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence discovery

Writes to the Master Boot Record (MBR)

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 01:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 01:51

Reported

2024-10-16 01:53

Platform

win7-20240903-en

Max time kernel

0s

Max time network

1s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.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\Office.Professional.2010.keygen.by.F4CG.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe

"C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe"

Network

N/A

Files

memory/2376-0-0x0000000000402000-0x0000000000404000-memory.dmp

memory/2376-1-0x0000000000430000-0x0000000000450000-memory.dmp

memory/2376-2-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 01:51

Reported

2024-10-16 01:54

Platform

win10v2004-20241007-en

Max time kernel

136s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.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\Office.Professional.2010.keygen.by.F4CG.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe

"C:\Users\Admin\AppData\Local\Temp\Office.Professional.2010.keygen.by.F4CG.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3264 -ip 3264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 368

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp

Files

memory/3264-0-0x0000000000402000-0x0000000000404000-memory.dmp