Malware Analysis Report

2025-01-22 12:23

Sample ID 240517-shcz9adc3y
Target 50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118
SHA256 12a00c621d9103ad59cd6b856da78447e5276b4ea33acff0e1d5704959141513
Tags
aspackv2 upx
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

12a00c621d9103ad59cd6b856da78447e5276b4ea33acff0e1d5704959141513

Threat Level: Shows suspicious behavior

The file 50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 upx

ASPack v2.12-2.42

UPX packed file

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-17 15:07

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 15:07

Reported

2024-05-17 15:09

Platform

win7-20240419-en

Max time kernel

140s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

Signatures

UPX packed file

upx
Description Indicator Process Target
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\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 224

Network

N/A

Files

memory/940-0-0x0000000010000000-0x00000000100A4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 15:07

Reported

2024-05-17 15:09

Platform

win10v2004-20240508-en

Max time kernel

139s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

Signatures

UPX packed file

upx
Description Indicator Process Target
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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4856 wrote to memory of 2676 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4856 wrote to memory of 2676 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4856 wrote to memory of 2676 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\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\50223fcfb75e464de16c2ff5322ff33a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2676 -ip 2676

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 616

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
NL 23.62.61.121:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 121.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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

Files

memory/2676-0-0x0000000010000000-0x00000000100A4000-memory.dmp