Malware Analysis Report

2025-08-05 16:53

Sample ID 250127-skr7ystrdz
Target JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab
SHA256 e887ce07596150433bb2db8251ca57aa2a68994c613e53a61a872b55a5695e4d
Tags
discovery
score
8/10

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
8/10

SHA256

e887ce07596150433bb2db8251ca57aa2a68994c613e53a61a872b55a5695e4d

Threat Level: Likely malicious

The file JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab was found to be: Likely malicious.

Malicious Activity Summary

discovery

Drops file in Drivers directory

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 15:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 15:11

Reported

2025-01-27 15:13

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 152

Network

N/A

Files

memory/1920-0-0x0000000000400000-0x0000000000411000-memory.dmp

memory/1920-1-0x0000000000220000-0x0000000000225000-memory.dmp

memory/1920-2-0x0000000000400000-0x0000000000411000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 15:11

Reported

2025-01-27 15:13

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.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\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40db66c6afe98b23d17fccc5ab6e08ab.exe"

Network

Country Destination Domain Proto
NL 85.12.43.75:80 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

Files

memory/920-0-0x0000000000400000-0x0000000000411000-memory.dmp

memory/920-1-0x00000000009C0000-0x00000000009C5000-memory.dmp

memory/920-2-0x0000000000400000-0x0000000000411000-memory.dmp

memory/920-3-0x00000000009C0000-0x00000000009C5000-memory.dmp

memory/920-7-0x0000000000400000-0x0000000000411000-memory.dmp