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Security Scan Report: ffnnbb_js_loader.rukkibospa5287.workers.dev

Response type:JavaScript filetext/javascriptHTTP 200The address returns a script file. A browser shows its source code rather than running it.
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Submitted: Completed: publiccompleted

Summary

API
This view is built from:
Scan result: counts, verdicts, details, IPs, technologies, hashes/api/v1/result/39f8b26c-0367-4834-acce-18f889305aa6Domain and IP registration (RDAP)/api/v1/rdap/39f8b26c-0367-4834-acce-18f889305aa6How often this domain was scanned/api/v1/domain/stats/ffnnbb_js_loader.rukkibospa5287.workers.devScan history for this domain/api/v1/domain/history/ffnnbb_js_loader.rukkibospa5287.workers.dev?limit=15
This website contacted 2 IPs in 1 country across 1 domain to perform 2 HTTP transactions. The main domain is workers.dev and was registered 7 years ago.

Submitted URL: https://ffnnbb_js_loader.rukkibospa5287.workers.dev/

AI Security Verdict

Moderate Risk

Confidence: 55%

3
Risk Score

Bare JavaScript file served from a random-named, unranked workers.dev subdomain of unknown age. No threat-intel, hunting rule or behavioral malware evidence, but the content is opaque and unverifiable — treat with caution.

Risk Factors (3)
Opaque JavaScript loader served from a free, instantly-created Cloudflare Workers subdomain with no context or attribution
Random-looking subdomain label with a 'js_loader' component, consistent with script-staging infrastructure
Unranked, no reputation, and unknown subdomain age (apex registration date is not attributable to this content)
Safety Factors (5)
No threat-intelligence matches against the returned content or its resources
No hunting rule JavaScript malware patterns and no high-precision native-hunting-rule hits
No known malicious kit in the kit roster
No JavaScript behavioral signals, no credential exfiltration and no forms of any kind
Only informational (MEDIUM, ET INFO) network IDS events were recorded
Domain age information unavailable

Details

Page Title

N/A

Scan Type

public

Domain Name Analysis

The domain name 'ffnnbb_js_loader.rukkibospa5287.workers.dev' uses the developer-focused generic top-level domain (.dev) and includes subdomain 'ffnnbb_js_loader.rukkibospa5287'. The registrable portion 'workers' spans 7 characters with 2 vowels and 5 consonants. Splitting it apart reveals one word: workers. Average segment length settles at 7 characters. No strong language cues emerged from the frequency lists.

Screenshot

Security scan screenshot of https://ffnnbb_js_loader.rukkibospa5287.workers.dev/

Page Load Overview

2.14s
Total Load Time
157 KB
Total Size

Language Analysis

Primary Language

🇺🇸English
Code: en
Confidence:50%
Script:Latin
Direction:ltr

Detection Details

Text Length:383,237 chars
Detector Agreement:100%

Website Classification

Primary Category

documentation technical55% confidence
Type: static
Method: ml+structural

All Detected Categories

documentation technical
55%
technology software
37%
adult content
35%
healthcare medical
35%
news media journalism
34%

Detected Features

No structural features detected

Domain & IP Information

RequestsIP AddressLocationAS Autonomous System
1104.21.62.234Cloudflare · WAFUnited States
AS13335Cloudflare, Inc.
1172.67.140.11Cloudflare · WAFUnited States
AS13335Cloudflare, Inc.
22--

Detected Technologies4

JQueryv3.6.0
100%
HTTP/3
40%
Cloudflare Bot Management
40%
Cloudflare
40%

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

Security-focused

Specialized for malware detection and similarity analysis

T1088461B54E9325DD0C4367FD199F61EAD891B8C9784530C7A244F868B78432F1AAFB38

ssdeep (Context Triggered Piecewise Hashing)

Context-aware

Detects similar content even with modifications

6144:Mk50O1/jDTuKkqT/jWxf0R+a2tGdTnMOy:iO1/T3AhGdjMD

sdhash (Similarity Digest Hashing)

High-precision

High-precision similarity detection for forensic analysis

sdhash:3:383388:E1GS0EifUAAvWRTqeYDEYNBw6LCEAFGgBEEgATIAwhEUoQKQqKPBAgiiwYBSaZbgqEJZAA0BlxPOJaCBBoEAHjo5wPEADIBg

These hashes enable detection of similar websites and malware variants by comparing content similarity even when exact matches aren't found.

Image Hashes

Perceptual Hashes

Average Hash:1f07010f03010303
Perceptual Hash:ab98f191b5d046e5
Difference Hash:df7fcf577769d747
Wavelet Hash:7f0f3d0f0f012f03
Color Hash:N/A

Other Hashes

Crop Resistant:df7fcf577769d747

Scan History

Scan history not available

Unable to load historical scan data