Malware Analysis Report

2025-03-14 23:27

Sample ID 240407-w448eabd43
Target e5949485b63006ded2b08f8dd14e997a_JaffaCakes118
SHA256 efec1f0fd84ba4ec53c84e4445a4d685fc4bc80d18392fcc218348824b819e55
Tags
bootkit 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

efec1f0fd84ba4ec53c84e4445a4d685fc4bc80d18392fcc218348824b819e55

Threat Level: Shows suspicious behavior

The file e5949485b63006ded2b08f8dd14e997a_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:29

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:29

Reported

2024-04-07 18:32

Platform

win10v2004-20240226-en

Max time kernel

17s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\physicaldrive0 C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp

Files

memory/1164-0-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1164-1-0x00000000021C0000-0x00000000022C0000-memory.dmp

memory/1164-2-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:29

Reported

2024-04-07 18:32

Platform

win7-20240221-en

Max time kernel

30s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\physicaldrive0 C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e5949485b63006ded2b08f8dd14e997a_JaffaCakes118.exe"

Network

N/A

Files

memory/1756-1-0x00000000020A0000-0x00000000021A0000-memory.dmp

memory/1756-0-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1756-2-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1756-4-0x00000000020A0000-0x00000000021A0000-memory.dmp