Malware Analysis Report

2025-03-14 23:39

Sample ID 240407-w2y9daah81
Target e592f4dc38e1924caf5b705d64e31623_JaffaCakes118
SHA256 1294db56f5f2a1c0d955313b24228bae646ea2027083627db30247833e910df8
Tags
upx 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

1294db56f5f2a1c0d955313b24228bae646ea2027083627db30247833e910df8

Threat Level: Shows suspicious behavior

The file e592f4dc38e1924caf5b705d64e31623_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx persistence

UPX packed file

Adds Run key to start application

Unsigned PE

Modifies Internet Explorer settings

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:25

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:25

Reported

2024-04-07 18:28

Platform

win7-20240221-en

Max time kernel

140s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe"

Signatures

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cognac = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

Network

N/A

Files

memory/2112-0-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2588-2-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2112-1755-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2588-3349-0x0000000000400000-0x000000000043F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:25

Reported

2024-04-07 18:28

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe"

Signatures

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Cognac = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\International C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e592f4dc38e1924caf5b705d64e31623_JaffaCakes118.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 28.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 imagesrepository.com udp
US 8.8.8.8:53 protection-manager.com udp
US 8.8.8.8:53 images-base.com udp
US 8.8.8.8:53 protect-management.com udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 121.150.79.40.in-addr.arpa udp

Files

memory/5084-0-0x0000000000400000-0x000000000043F000-memory.dmp

memory/5084-251-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-10196-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-22455-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-28681-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-37543-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-49442-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-52847-0x0000000003B80000-0x0000000003B81000-memory.dmp

memory/4492-52848-0x0000000003C70000-0x0000000003C71000-memory.dmp

memory/4492-52849-0x0000000000400000-0x000000000043F000-memory.dmp

memory/4492-52851-0x0000000003B80000-0x0000000003B81000-memory.dmp

memory/4492-52853-0x0000000003C70000-0x0000000003C71000-memory.dmp

memory/4492-52854-0x0000000003C70000-0x0000000003C71000-memory.dmp