Malware Analysis Report

2025-08-11 07:36

Sample ID 241015-3cacaascph
Target 4a768c31d149f196b58b87cffc4b46a9_JaffaCakes118
SHA256 a48cdd0ae66ecd68dd081ecaaf5707e121da4332ad63d4e4fbcf5910d6b28f3e
Tags
bootkit persistence discovery
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

a48cdd0ae66ecd68dd081ecaaf5707e121da4332ad63d4e4fbcf5910d6b28f3e

Threat Level: Shows suspicious behavior

The file 4a768c31d149f196b58b87cffc4b46a9_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence discovery

Writes to the Master Boot Record (MBR)

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 23:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-15 23:21

Reported

2024-10-15 23:24

Platform

win7-20240708-en

Max time kernel

0s

Max time network

1s

Command Line

"C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.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\WinZip_v10_Beta.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe

"C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe"

Network

N/A

Files

memory/1540-0-0x0000000000402000-0x0000000000404000-memory.dmp

memory/1540-1-0x00000000005C0000-0x00000000005E0000-memory.dmp

memory/1540-2-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 23:21

Reported

2024-10-15 23:21

Platform

win10v2004-20241007-en

Max time kernel

2s

Max time network

3s

Command Line

"C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.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\WinZip_v10_Beta.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe

"C:\Users\Admin\AppData\Local\Temp\WinZip_v10_Beta.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

memory/4360-0-0x0000000000402000-0x0000000000404000-memory.dmp

memory/4360-1-0x0000000000A20000-0x0000000000A40000-memory.dmp

memory/4360-2-0x0000000000400000-0x0000000000429000-memory.dmp