Malware Analysis Report

2025-08-05 16:57

Sample ID 250127-zcep8avpak
Target JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9
SHA256 c64e17f890b285d5a80972149a1634dd7540065d41e88e0f1f377535ef8569fd
Tags
discovery
score
3/10

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
3/10

SHA256

c64e17f890b285d5a80972149a1634dd7540065d41e88e0f1f377535ef8569fd

Threat Level: Likely benign

The file JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9 was found to be: Likely benign.

Malicious Activity Summary

discovery

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 20:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 20:34

Reported

2025-01-27 20:36

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2736 wrote to memory of 2748 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\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

Network

N/A

Files

memory/2748-2-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/2748-1-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/2748-0-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/2748-4-0x0000000000192000-0x0000000000193000-memory.dmp

memory/2748-3-0x0000000000180000-0x000000000019A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 20:34

Reported

2025-01-28 02:39

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2344 wrote to memory of 748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 748 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 748 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\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4371f57c2e34459d5383b3ff2450f2a9.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 5.114.82.104.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 96.252.19.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/748-0-0x0000000000010000-0x000000000002A000-memory.dmp