Malware Analysis Report

2025-08-11 07:36

Sample ID 241015-1jrtsssgmj
Target 4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118
SHA256 fcd9ddd98ad8a2900a8dc48ef8d66c58236ddcfc02f815c9d9b3c2ea6bf3e1c6
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

fcd9ddd98ad8a2900a8dc48ef8d66c58236ddcfc02f815c9d9b3c2ea6bf3e1c6

Threat Level: Shows suspicious behavior

The file 4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery persistence

Writes to the Master Boot Record (MBR)

Drops file in System32 directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 21:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-15 21:41

Reported

2024-10-15 21:43

Platform

win7-20240903-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\-58-5955125 C:\Windows\SysWOW64\rundll32.exe N/A
File created C:\Windows\SysWOW64\04d C:\Windows\SysWOW64\rundll32.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2512 wrote to memory of 3060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 yahoo.com.cn udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 yahoo.com.cn udp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 21:41

Reported

2024-10-15 21:43

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

146s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\-6783-85-91 C:\Windows\SysWOW64\rundll32.exe N/A
File created C:\Windows\SysWOW64\089 C:\Windows\SysWOW64\rundll32.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3200 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3200 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3200 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a2360253b77f6b192e213cadeb5a94f_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 yahoo.com.cn udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 73.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com 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 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp
US 8.8.8.8:53 122.770304123.cn udp
US 8.8.8.8:53 122.zzso.cn udp
US 8.8.8.8:53 122.aapl55.com udp
US 8.8.8.8:53 122.cant-k.com udp

Files

N/A