Malware Analysis Report

2025-03-14 23:27

Sample ID 240407-wv4waaba98
Target e58dd989c9be520445aad1eee64f4222_JaffaCakes118
SHA256 35add67ea6bcdabc352108bb0d5e75b578a8643f638f9185695ef39caed420fc
Tags
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

35add67ea6bcdabc352108bb0d5e75b578a8643f638f9185695ef39caed420fc

Threat Level: Shows suspicious behavior

The file e58dd989c9be520445aad1eee64f4222_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Adds Run key to start application

Drops file in System32 directory

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:15

Reported

2024-04-07 18:18

Platform

win7-20240221-en

Max time kernel

118s

Max time network

122s

Command Line

C:\Windows\Explorer.EXE

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Runonce = "C:\\Windows\\system32\\runouce.exe" C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\runouce.exe C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\runouce.exe C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe"

Network

N/A

Files

memory/1136-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/1136-1-0x0000000000230000-0x0000000000245000-memory.dmp

memory/1352-4-0x0000000002A10000-0x0000000002A11000-memory.dmp

memory/1736-2-0x0000000000400000-0x0000000000415000-memory.dmp

memory/1352-5-0x0000000002A10000-0x0000000002A11000-memory.dmp

memory/1136-6-0x0000000000400000-0x0000000000415000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:15

Reported

2024-04-07 18:18

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e58dd989c9be520445aad1eee64f4222_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1340 -ip 1340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 388

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1340 -ip 1340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 396

Network

Country Destination Domain Proto
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.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 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp

Files

memory/1340-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/1340-1-0x0000000000400000-0x0000000000415000-memory.dmp