Malware Analysis Report

2025-08-06 04:09

Sample ID 240508-3vgjbaee7y
Target 274ba4b9503555799de29cfecf1af7d2_JaffaCakes118
SHA256 19a0812492b8775875dc06ad0e277cce7eded213c703d28603b8879a4b502d66
Tags
bootkit persistence
score
6/10

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
6/10

SHA256

19a0812492b8775875dc06ad0e277cce7eded213c703d28603b8879a4b502d66

Threat Level: Shows suspicious behavior

The file 274ba4b9503555799de29cfecf1af7d2_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Adds Run key to start application

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 23:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 23:49

Reported

2024-05-08 23:52

Platform

win7-20240221-en

Max time kernel

9s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Flash Player Local 32-64bit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe"

Network

Country Destination Domain Proto
TR 77.245.148.16:1433 tcp
TR 31.223.0.133:3331 tcp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp

Files

memory/1900-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/1900-3-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/1900-5-0x0000000000230000-0x0000000000231000-memory.dmp

memory/1900-7-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/1900-9-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/1900-13-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/1900-17-0x0000000000400000-0x0000000000C42000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 23:49

Reported

2024-05-08 23:52

Platform

win10v2004-20240508-en

Max time kernel

143s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Flash Player Local 32-64bit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\274ba4b9503555799de29cfecf1af7d2_JaffaCakes118.exe"

Network

Country Destination Domain Proto
TR 77.245.148.16:1433 tcp
TR 31.223.0.133:3331 tcp
US 8.8.8.8:53 16.148.245.77.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp
N/A 192.168.2.50:3331 tcp
TR 31.223.0.133:3331 tcp

Files

memory/5116-0-0x0000000000F60000-0x0000000000F61000-memory.dmp

memory/5116-3-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/5116-4-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/5116-5-0x0000000000F60000-0x0000000000F61000-memory.dmp

memory/5116-7-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/5116-9-0x0000000000400000-0x0000000000C42000-memory.dmp

memory/5116-14-0x0000000000400000-0x0000000000C42000-memory.dmp