Malware Analysis Report

2025-08-10 22:39

Sample ID 250127-sb3x4atndt
Target JaffaCakes118_40bf354a2f5f69e307f9498660a7275c
SHA256 4fe312ba8f103e4854f6587495146e342684f76874fb7937379062e56fc9110f
Tags
discovery persistence
score
7/10

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
7/10

SHA256

4fe312ba8f103e4854f6587495146e342684f76874fb7937379062e56fc9110f

Threat Level: Shows suspicious behavior

The file JaffaCakes118_40bf354a2f5f69e307f9498660a7275c was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 14:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 14:57

Reported

2025-01-27 15:00

Platform

win7-20240729-en

Max time kernel

143s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

Signatures

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinDefender = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinDefender = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.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\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\WinDefender.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1756 wrote to memory of 1080 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 1080 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1080 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1080 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1080 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 1376 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

"C:\Users\Admin\AppData\Local\Temp\WinDefender.exe"

C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

"C:\Users\Admin\AppData\Local\Temp\WinDefender.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sw.maximum-irc.info udp

Files

memory/1080-2-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1080-4-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1080-5-0x0000000000400000-0x000000000040F000-memory.dmp

\Users\Admin\AppData\Local\Temp\WinDefender.exe

MD5 40bf354a2f5f69e307f9498660a7275c
SHA1 8b43bf482c7f589d55c12d1066da4f193aeb7bbb
SHA256 4fe312ba8f103e4854f6587495146e342684f76874fb7937379062e56fc9110f
SHA512 71c12aa22bbcaccd14c281712f889f8342e06dd1bd70e0b2d4e0305d1ff8f285ec447a482bc79c47c89a27c6920dd525ba415887d37292cfd2fce960ce437b0a

memory/1080-20-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2240-26-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2240-27-0x0000000000400000-0x000000000040F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 14:57

Reported

2025-01-27 15:00

Platform

win10v2004-20241007-en

Max time kernel

143s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

Signatures

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinDefender = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinDefender = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.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\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\WinDefender.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 5076 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe
PID 2104 wrote to memory of 4952 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 2104 wrote to memory of 4952 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 2104 wrote to memory of 4952 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe
PID 4952 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\WinDefender.exe C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf354a2f5f69e307f9498660a7275c.exe"

C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

"C:\Users\Admin\AppData\Local\Temp\WinDefender.exe"

C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

"C:\Users\Admin\AppData\Local\Temp\WinDefender.exe"

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 sw.maximum-irc.info udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2104-2-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2104-4-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2104-5-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\WinDefender.exe

MD5 40bf354a2f5f69e307f9498660a7275c
SHA1 8b43bf482c7f589d55c12d1066da4f193aeb7bbb
SHA256 4fe312ba8f103e4854f6587495146e342684f76874fb7937379062e56fc9110f
SHA512 71c12aa22bbcaccd14c281712f889f8342e06dd1bd70e0b2d4e0305d1ff8f285ec447a482bc79c47c89a27c6920dd525ba415887d37292cfd2fce960ce437b0a

memory/2104-15-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1216-19-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1216-20-0x0000000000400000-0x000000000040F000-memory.dmp

memory/1216-21-0x0000000000400000-0x000000000040F000-memory.dmp