Malware Analysis Report

2025-01-03 09:11

Sample ID 240620-m4l76axhnj
Target 056269845ee69cda23438f68c8f5d50d_JaffaCakes118
SHA256 22e36184a75868420b3632ed1486582f2cb6b7648f899209367819d3d2711a12
Tags
bootkit discovery persistence
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

22e36184a75868420b3632ed1486582f2cb6b7648f899209367819d3d2711a12

Threat Level: Shows suspicious behavior

The file 056269845ee69cda23438f68c8f5d50d_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery persistence

Checks installed software on the system

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 11:01

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 11:01

Reported

2024-06-20 11:03

Platform

win10v2004-20240611-en

Max time kernel

140s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2024 wrote to memory of 216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2024 wrote to memory of 216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2024 wrote to memory of 216 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\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/216-0-0x00000000013B0000-0x00000000013BB000-memory.dmp

memory/216-2-0x0000000010000000-0x000000001000A000-memory.dmp

memory/216-5-0x00000000013B0000-0x00000000013B1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 11:01

Reported

2024-06-20 11:03

Platform

win7-20231129-en

Max time kernel

120s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

Signatures

Checks installed software on the system

discovery

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2200 wrote to memory of 1036 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\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\056269845ee69cda23438f68c8f5d50d_JaffaCakes118.dll,#1

Network

N/A

Files

memory/1036-0-0x0000000000170000-0x000000000017B000-memory.dmp

memory/1036-1-0x0000000010000000-0x000000001000A000-memory.dmp

memory/1036-4-0x0000000010000000-0x000000001000A000-memory.dmp

memory/1036-6-0x0000000000170000-0x00000000001F0000-memory.dmp

memory/1036-7-0x0000000000170000-0x00000000001F0000-memory.dmp