MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains a link that redirects to a URL associated with malicious redirector infrastructure, likely for SEO spam or phishing. The document also contains a large number of links to various PDFs hosted on Shopify, suggesting a link farm designed to generate traffic or manipulate search engine results. The primary malicious indicator is the use of a redirector to obscure the ultimate destination of the user's click.
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.com/wb?keyword=telugu%20stories%20books%20pdf%20download In PDF document text
- http://files.selectricartists.com/uploads/1/3/1/4/131407655/2763129.pdfIn PDF document text
- http://files.kavanaghsport.com/uploads/1/3/0/7/130739202/5256241.pdfIn PDF document text
- http://files.americanbuttercupclub.org/uploads/1/3/0/7/130739968/melubidudone.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6160/8599/files/acid_rain_causes_and_effects.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2230/0822/files/how_to_make_crack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9459/8047/files/2007_honda_odyssey_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/4497/5271/files/auditory_pathway.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6624/4766/files/76954293865.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7079/0558/files/45100346338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/rukivelotezoluv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5110/3894/files/80523073774.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8992/9116/files/58890254123.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93616534700.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7726/1729/files/65845328581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3495/0304/files/bertrand_russell_problems_of_philosophy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2846/2240/files/77682422663.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1302/0570/files/74354994675.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/28353970097.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000058cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58CC | 5452 bytes |
SHA-256: 188a22f014af8a23e1b8e09b0f3482d48529b1c4bd59b09aa0ab5163b00800cf |
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font_01_sfnt_off00006b7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B7A | 10616 bytes |
SHA-256: c3890f9f039758a9515c895ca22d13c163a4c2da438801a31433f17a9cdf41d9 |
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font_02_sfnt_off00008ff8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FF8 | 16092 bytes |
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2 |
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