Malware Analysis Report

2025-03-15 05:55

Sample ID 240514-kevf5ahb88
Target 40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118
SHA256 ae57a8576f536bf0c4cece8d386ae7ebf104c73e7e52f6662dd29f335f8fe8f3
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

ae57a8576f536bf0c4cece8d386ae7ebf104c73e7e52f6662dd29f335f8fe8f3

Threat Level: Shows suspicious behavior

The file 40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-14 08:31

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

2024-05-14 08:31

Reported

2024-05-14 08:33

Platform

win7-20231129-en

Max time kernel

118s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\40dbf16b1ff623044ebf1d4bea9588cd_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 behavior: EnumeratesProcesses

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

Suspicious use of SetWindowsHookEx

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118.dll,#1

Network

N/A

Files

memory/912-36-0x0000000073643000-0x0000000073AA1000-memory.dmp

memory/912-34-0x0000000000280000-0x0000000000281000-memory.dmp

memory/912-41-0x0000000073190000-0x0000000074260000-memory.dmp

memory/912-32-0x0000000000280000-0x0000000000281000-memory.dmp

memory/912-30-0x0000000000280000-0x0000000000281000-memory.dmp

memory/912-29-0x0000000000270000-0x0000000000271000-memory.dmp

memory/912-27-0x0000000000270000-0x0000000000271000-memory.dmp

memory/912-24-0x0000000000220000-0x0000000000221000-memory.dmp

memory/912-22-0x0000000000220000-0x0000000000221000-memory.dmp

memory/912-19-0x0000000000210000-0x0000000000211000-memory.dmp

memory/912-17-0x0000000000210000-0x0000000000211000-memory.dmp

memory/912-14-0x0000000000200000-0x0000000000201000-memory.dmp

memory/912-12-0x0000000000200000-0x0000000000201000-memory.dmp

memory/912-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

memory/912-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

memory/912-5-0x00000000001F0000-0x00000000001F1000-memory.dmp

memory/912-4-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/912-2-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/912-0-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/912-42-0x0000000073643000-0x0000000073AA1000-memory.dmp

memory/912-43-0x0000000073190000-0x0000000074260000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-14 08:31

Reported

2024-05-14 08:33

Platform

win10v2004-20240508-en

Max time kernel

92s

Max time network

94s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\40dbf16b1ff623044ebf1d4bea9588cd_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

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1632 wrote to memory of 1292 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1632 wrote to memory of 1292 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1632 wrote to memory of 1292 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\40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\40dbf16b1ff623044ebf1d4bea9588cd_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 131.253.33.237:443 g.bing.com tcp
NL 23.62.61.107:443 www.bing.com tcp
US 8.8.8.8:53 237.33.253.131.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 107.61.62.23.in-addr.arpa udp
NL 23.62.61.107:443 www.bing.com tcp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 142.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/1292-2-0x0000000001170000-0x0000000001171000-memory.dmp

memory/1292-8-0x0000000073F20000-0x0000000074FF0000-memory.dmp

memory/1292-7-0x00000000029C0000-0x00000000029C1000-memory.dmp

memory/1292-6-0x00000000743D3000-0x0000000074831000-memory.dmp

memory/1292-5-0x00000000029B0000-0x00000000029B1000-memory.dmp

memory/1292-4-0x00000000029A0000-0x00000000029A1000-memory.dmp

memory/1292-3-0x0000000001180000-0x0000000001181000-memory.dmp

memory/1292-1-0x0000000001140000-0x0000000001141000-memory.dmp

memory/1292-0-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

memory/1292-13-0x0000000073F20000-0x0000000074FF0000-memory.dmp

memory/1292-14-0x00000000743D3000-0x0000000074831000-memory.dmp

memory/1292-15-0x0000000073F20000-0x0000000074FF0000-memory.dmp