MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links designed to lure users into downloading what appears to be a medical textbook. The primary link redirects to a known malicious redirector, ttraff.cc, which likely serves further malicious content. The document body and heuristics indicate a deceptive SEO-based lure to a malicious URL.
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.cc/pify?keyword=langman+s+medical+embryology+12th+edition+pdf+free+download In PDF document text
- http://files.incorporationofmasonsofglasgow.org/uploads/1/3/1/8/131856769/buvekarazikatuba.pdfIn PDF document text
- http://files.newparkclosefrc.com/uploads/1/3/0/8/130814124/nexemixinere.pdfIn PDF document text
- http://files.prcpartners.net/uploads/1/3/1/3/131398360/rasivir.pdfIn PDF document text
- http://wegipuvat.natpearsonmusic.com/uploads/1/3/0/8/130815009/4832141.pdfIn PDF document text
- http://files.unioncongregationalucc.org/uploads/1/3/0/7/130739480/2ac5a.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/1/0432/2168/0283/files/tafasizivufodogewupawej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8154/7417/files/disc_diffusion_method_for_antimicrobial_activity_protocol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0593/4759/files/kth_smallest_element_in_a_bst.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1430/5430/files/artificial_girl_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1704/3111/files/hillsong_united_oceans_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3757/9674/files/54135008562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/0761/1804/files/massey_harris_pony.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1020/1499/files/85282798229.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7591/1321/files/dimapewojebuleludiwogazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5851/1522/files/79525766416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0722/0635/files/algebraic_topology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9776/0668/files/wiwisofoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5396/4712/files/46901479411.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_off00005256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5256 | 5816 bytes |
SHA-256: 31eb400d1cbbd5d755c392deca6189f6f686f2a0da7dc6eb401ff84e083c6f2a |
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font_01_sfnt_off00006608.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6608 | 9792 bytes |
SHA-256: efd0ff8859b8088dc32543d557aa340dc2a704078ab119a4dd1181e41b95fe71 |
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font_02_sfnt_off00008784.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8784 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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