Malware Analysis Report

2025-03-14 23:13

Sample ID 240406-3rhbfafc22
Target e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118
SHA256 012717bd7824578b4de36e51607f593a9bd3430235bc84be1a53867b17ba4048
Tags
persistence upx
score
8/10

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
8/10

SHA256

012717bd7824578b4de36e51607f593a9bd3430235bc84be1a53867b17ba4048

Threat Level: Likely malicious

The file e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence upx

Drops file in Drivers directory

UPX packed file

Adds Run key to start application

Drops file in Windows directory

Program crash

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 23:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 23:44

Reported

2024-04-06 23:47

Platform

win7-20240221-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivers\System.exe C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Servicos = "C:\\Windows\\system32\\drivers\\System.exe" C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\windows\winx.log C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gsmtp185.google.com udp

Files

memory/2244-0-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/2244-1-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-2-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-4-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-3-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-5-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-6-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-8-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-7-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-9-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-10-0x0000000000250000-0x0000000000251000-memory.dmp

memory/2244-11-0x0000000076310000-0x000000007631A000-memory.dmp

memory/2244-13-0x0000000074A20000-0x0000000074A2C000-memory.dmp

memory/2244-14-0x0000000076420000-0x0000000076510000-memory.dmp

memory/2244-15-0x0000000074840000-0x0000000074849000-memory.dmp

memory/2244-16-0x0000000076070000-0x0000000076076000-memory.dmp

memory/2244-18-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/2244-20-0x000000007EF50000-0x000000007EFAC000-memory.dmp

memory/2244-21-0x0000000000250000-0x0000000000251000-memory.dmp

memory/2244-22-0x0000000076310000-0x000000007631A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 23:44

Reported

2024-04-06 23:47

Platform

win10v2004-20231215-en

Max time kernel

92s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivers\System.exe C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

UPX packed file

upx
Description Indicator Process Target
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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Servicos = "C:\\Windows\\system32\\drivers\\System.exe" C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\windows\winx.log C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3924af43f432861f9ad5aadcb080d4a_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1080 -ip 1080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 948

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1080 -ip 1080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 948

Network

Country Destination Domain Proto
US 8.8.8.8:53 gsmtp185.google.com udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp

Files

memory/1080-0-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/1080-1-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/1080-2-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-3-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-4-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-5-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-6-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-7-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-8-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-9-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-10-0x000000007FDF0000-0x000000007FE4C000-memory.dmp

memory/1080-12-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/1080-13-0x0000000002C10000-0x0000000002C11000-memory.dmp

memory/1080-15-0x0000000000400000-0x00000000009E5000-memory.dmp

memory/1080-16-0x000000007FDF0000-0x000000007FE4C000-memory.dmp