MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of external links, identified as a PDF SEO link farm. The document body, though partially corrupted, contains references to 'Cosmic background radiation quizlet' and the authoring application 'wkhtmltopdf', suggesting a lure or content generation tool. The primary attack pattern involves directing users to a multitude of external PDF files hosted on various domains, likely for SEO manipulation or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://tecrunner.com/uploads/1/3/0/9/130969993/130969993.html#cosmic+background+radiation+quizlet PDF link annotation
- http://oaklandcommunitycouncil.org/uploads/1/3/0/7/130775961/c9ccff74de8f.pdfIn PDF document text
- http://decalsgonewild.com/uploads/1/3/0/7/130775557/5293246.pdfIn PDF document text
- http://lakewayelmer.com/uploads/1/3/0/6/130620454/8107234.pdfIn PDF document text
- http://deftshop.net/uploads/1/3/0/3/130379435/wisomigode.pdfIn PDF document text
- http://nerdsville.org/uploads/1/3/0/6/130620508/8310885.pdfIn PDF document text
- http://candymonthly.com/uploads/1/3/0/8/130813381/zimagavebawodu.pdfIn PDF document text
- http://findoliviaandmason.com/uploads/1/3/0/5/130588778/fekixaxo-moromoxi.pdfIn PDF document text
- http://www.fireseedclay.com/uploads/1/3/0/9/130969206/2076476.pdfIn PDF document text
- http://rss-me.com/uploads/1/3/0/7/130740211/6161623.pdfIn PDF document text
- http://www.deepbginvest.com/uploads/1/3/0/2/130288549/5442955.pdfIn PDF document text
- http://brandonmillerbasketball.com/uploads/1/3/0/4/130478106/7982c779c22cc13.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F3A | 8092 bytes |
SHA-256: 50f823e3d7c5558faddb21afe550e374704e5223239846230dc260dfee365259 |
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