Malware Analysis Report

2025-08-11 07:35

Sample ID 241015-3wg68stare
Target 4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118
SHA256 ce16f3e84d039f85db7433c86871709312135afbe01bb06dbea6373b1756e851
Tags
discovery persistence bootkit
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

ce16f3e84d039f85db7433c86871709312135afbe01bb06dbea6373b1756e851

Threat Level: Shows suspicious behavior

The file 4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence bootkit

Adds Run key to start application

Writes to the Master Boot Record (MBR)

System Location Discovery: System Language Discovery

Unsigned PE

Modifies registry class

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 23:51

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 23:51

Reported

2024-10-15 23:54

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118 = "C:\\Users\\Admin\\AppData\\Roaming\\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_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\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.google.com udp
GB 142.250.200.4:80 www.google.com tcp
US 8.8.8.8:53 4.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa 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 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/2872-0-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2872-1-0x00000000023D0000-0x00000000023D8000-memory.dmp

memory/2872-37-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/2872-39-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-38-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-36-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/2872-35-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-34-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-33-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-32-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-31-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-30-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-29-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-28-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-27-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-26-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-25-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-24-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-23-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-22-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-21-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-20-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-19-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-18-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-17-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-16-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-15-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-14-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-13-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-12-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-11-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-10-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-9-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-8-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-7-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-6-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-5-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-4-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-3-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-2-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-46-0x0000000002CB0000-0x0000000002CB1000-memory.dmp

memory/2872-63-0x0000000003390000-0x0000000003391000-memory.dmp

memory/2872-62-0x0000000003370000-0x0000000003371000-memory.dmp

memory/2872-61-0x0000000003350000-0x0000000003351000-memory.dmp

memory/2872-60-0x0000000003310000-0x0000000003311000-memory.dmp

memory/2872-45-0x00000000023F0000-0x00000000023F1000-memory.dmp

memory/2872-59-0x0000000002CF0000-0x0000000002CF1000-memory.dmp

memory/2872-58-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

memory/2872-57-0x00000000033A0000-0x00000000033A1000-memory.dmp

memory/2872-56-0x00000000033B0000-0x00000000033B1000-memory.dmp

memory/2872-55-0x0000000003380000-0x0000000003381000-memory.dmp

memory/2872-54-0x0000000003360000-0x0000000003361000-memory.dmp

memory/2872-53-0x0000000003340000-0x0000000003341000-memory.dmp

memory/2872-52-0x0000000003320000-0x0000000003321000-memory.dmp

memory/2872-51-0x0000000003330000-0x0000000003331000-memory.dmp

memory/2872-50-0x0000000003300000-0x0000000003301000-memory.dmp

memory/2872-49-0x0000000002CE0000-0x0000000002CE1000-memory.dmp

memory/2872-48-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

memory/2872-47-0x0000000002420000-0x0000000002421000-memory.dmp

memory/2872-44-0x00000000021D0000-0x00000000021D1000-memory.dmp

memory/2872-43-0x00000000021C0000-0x00000000021C1000-memory.dmp

memory/2872-42-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/2872-64-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2872-65-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/2872-67-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/2872-68-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2872-75-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2872-85-0x0000000000400000-0x000000000047D000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-15 23:51

Reported

2024-10-15 23:54

Platform

win7-20241010-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118 = "C:\\Users\\Admin\\AppData\\Roaming\\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_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\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4a8c5f77d3c05783dd9f2a5dcc0e5471_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
GB 142.250.200.4:80 www.google.com tcp

Files

memory/2128-0-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2128-1-0x0000000000230000-0x00000000002AD000-memory.dmp

memory/2128-2-0x000000000041A000-0x000000000041B000-memory.dmp

memory/2128-3-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2128-7-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2128-8-0x000000000041A000-0x000000000041B000-memory.dmp

memory/2128-9-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2128-16-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2128-30-0x0000000000400000-0x000000000047D000-memory.dmp