Malware Analysis Report

2025-03-15 06:01

Sample ID 240512-qxc8fsbh87
Target 3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118
SHA256 409456c0c46aed02e17a2efaf155f95702508a2319d0e2251e9c7ca5ab9ae805
Tags
vmprotect
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

409456c0c46aed02e17a2efaf155f95702508a2319d0e2251e9c7ca5ab9ae805

Threat Level: Shows suspicious behavior

The file 3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-12 13:38

Signatures

VMProtect packed file

vmprotect
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-12 13:38

Reported

2024-05-12 13:40

Platform

win7-20240221-en

Max time kernel

119s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

Signatures

VMProtect packed file

vmprotect
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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 284

Network

N/A

Files

memory/2108-0-0x00000000742A0000-0x000000007498F000-memory.dmp

memory/2108-1-0x0000000073BB0000-0x000000007429F000-memory.dmp

memory/2108-2-0x00000000742A0000-0x000000007498F000-memory.dmp

memory/2108-3-0x0000000073BB0000-0x000000007429F000-memory.dmp

memory/2108-5-0x0000000073BB0000-0x000000007429F000-memory.dmp

memory/2108-6-0x0000000073BB0000-0x000000007429F000-memory.dmp

memory/2108-7-0x0000000073BB0000-0x000000007429F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-12 13:38

Reported

2024-05-12 13:40

Platform

win10v2004-20240426-en

Max time kernel

132s

Max time network

102s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

Signatures

VMProtect packed file

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4012 wrote to memory of 1932 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4012 wrote to memory of 1932 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4012 wrote to memory of 1932 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a61d7fc9bf5222c76a63c4be454d899_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1932 -ip 1932

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1932 -ip 1932

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 844

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.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 17.160.190.20.in-addr.arpa udp
NL 23.62.61.185:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 185.61.62.23.in-addr.arpa udp
NL 23.62.61.185:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/1932-0-0x0000000074D30000-0x000000007541F000-memory.dmp

memory/1932-1-0x0000000074D30000-0x000000007541F000-memory.dmp