MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=sample+business+letter+format+example+pdf', suggesting a lure to download further malicious content. The presence of multiple Shopify-hosted PDFs also indicates a link farm for SEO manipulation, likely to increase the visibility of the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.ru/pify?keyword=sample+business+letter+format+example+pdf In PDF document text
- http://files.rvasings.org/uploads/1/3/2/8/132815178/45c615b5f.pdfIn PDF document text
- http://files.sonomagrilleandbar.com/uploads/1/3/0/7/130740143/2931018.pdfIn PDF document text
- http://files.petrapreschool.net/uploads/1/3/1/4/131454262/314fdf.pdfIn PDF document text
- http://files.starfishswimmers.com/uploads/1/3/2/6/132681992/rumopi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/0528/8352/files/31630797236.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9060/8285/files/74085283354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5679/9648/files/wibadufezez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4764/9429/files/lewotuzom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1636/3927/files/xijokiruvub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1664/9890/files/biological_science_freeman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8330/8955/files/calorific_value_of_fuels.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3410/8323/files/73140228589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8303/7860/files/mulopotenaxolovi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7754/2823/files/64637128652.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1008/8357/files/rarexa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3464/8474/files/20258932989.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0418/2173/files/vupivujukitiz.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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F2 | 5380 bytes |
SHA-256: 7343f38e130c663bd596fed6da6840c07545a9a9ed859aaa907fc50240ca4160 |
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font_01_sfnt_off00007515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7515 | 10236 bytes |
SHA-256: 506949894be8aadd483cef6c003ace01f50a8cd8c15fe132f4cb54d4d2926f8e |
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font_02_sfnt_off00009807.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9807 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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