Malware Analysis Report

2025-08-10 18:07

Sample ID 240507-mscjksfc39
Target 20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118
SHA256 b65cc40a8139e03afcf24b0b6cf7450684ef36a324561d37366d44ded2245070
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

b65cc40a8139e03afcf24b0b6cf7450684ef36a324561d37366d44ded2245070

Threat Level: Shows suspicious behavior

The file 20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-07 10:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 10:43

Reported

2024-05-07 10:45

Platform

win7-20240215-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_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\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe = "11000" C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 report.smartlook.shheshou.com udp
US 8.8.8.8:53 news.7654.com udp
CN 42.177.83.214:80 news.7654.com tcp
CN 42.177.83.78:80 news.7654.com tcp
CN 123.6.42.197:80 news.7654.com tcp
CN 123.234.2.61:80 news.7654.com tcp
CN 123.139.99.35:80 news.7654.com tcp

Files

memory/2760-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2760-1-0x0000000000400000-0x00000000004CC000-memory.dmp

memory/2760-3-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2760-8-0x0000000000400000-0x00000000004CC000-memory.dmp

memory/2760-20-0x0000000000400000-0x00000000004CC000-memory.dmp

memory/2760-28-0x0000000000270000-0x0000000000271000-memory.dmp

memory/2760-29-0x0000000000400000-0x00000000004CC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 10:43

Reported

2024-05-07 10:45

Platform

win10v2004-20240419-en

Max time kernel

140s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_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\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe = "11000" C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\20598e02414fc935c4e7ff77d7268eaa_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 report.smartlook.shheshou.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
NL 23.62.61.160:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 160.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 news.7654.com udp
CN 42.177.83.78:80 news.7654.com tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
CN 123.234.2.61:80 news.7654.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
CN 116.148.232.59:80 news.7654.com tcp
US 8.8.8.8:53 48.251.17.2.in-addr.arpa udp
CN 42.177.83.87:80 news.7654.com tcp
CN 123.6.42.137:80 news.7654.com tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4952-0-0x00000000024C0000-0x00000000024C1000-memory.dmp

memory/4952-1-0x0000000000400000-0x00000000004CC000-memory.dmp

memory/4952-3-0x00000000024C0000-0x00000000024C1000-memory.dmp

memory/4952-8-0x0000000000400000-0x00000000004CC000-memory.dmp

memory/4952-19-0x0000000000400000-0x00000000004CC000-memory.dmp