MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external PDFs, masquerading as a document about statistical inference. The primary link directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded link structure suggests a link farm designed to attract users searching for specific documents, likely to compromise them.
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/pify?keyword=statistical+inference+theory+of+estimation+pdf In PDF document text
- http://files.slra.org/uploads/1/3/2/6/132682134/9397687.pdfIn PDF document text
- http://files.thoughtsfromthepaint.com/uploads/1/3/2/6/132682076/8225074.pdfIn PDF document text
- http://zinuvonir.laptopupcycle.org/uploads/1/3/1/6/131606758/2683263.pdfIn PDF document text
- http://fisifuf.withinyourmeansdesign.com/uploads/1/3/0/7/130739826/f6b87a1581c.pdfIn PDF document text
- http://jujaru.philbg.ca/uploads/1/3/1/8/131856772/84485d2bcea7.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/1/0427/6345/2583/files/midupolunutaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6241/8846/files/45355441385.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9038/5821/files/kubernetes_on_coreos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0115/9575/files/najimuwugawijuzex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0261/0335/files/vegawomiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/borutazaweluv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0124/9955/files/practical_skills_in_chemistry_john_dean.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9977/4364/files/bon_iver_skinny_love_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0528/8352/files/sulifiwowirepizogulivekun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0366/5822/files/64823952725.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000aa51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA51 | 5388 bytes |
SHA-256: 8fc8014bc8f5d9efe2129ab6a7eb21fa856efa1ed272a87d414d8d18cc6a6229 |
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font_01_sfnt_off0000bc65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC65 | 10932 bytes |
SHA-256: c1b5b96fedbb91faaa7d22ff895e16dc7d6fb7e249bb9b3d06f3f45c3de5ff8c |
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font_02_sfnt_off0000e1cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CB | 16084 bytes |
SHA-256: 1513cff1140ee46b119fd1f1a8d89226c35fa745519edd36504e398b791a408b |
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font_03_sfnt_off0000f676.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF676 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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