MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to a redirector infrastructure designed to host SEO-optimized PDF files. The primary redirector URL is https://ttraff.ru/pify?keyword=bsc+1st+year+physics+practical+book+pdf, which likely serves as a lure for users searching for academic materials. The ML classifier strongly indicated maliciousness, and the link farm behavior is consistent with phishing or malware distribution campaigns.
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=bsc+1st+year+physics+practical+book+pdf In PDF document text
- http://files.sandislandtennis.com/uploads/1/3/1/4/131453902/tubesefopetodubo.pdfIn PDF document text
- http://files.carringtonandfinch.com/uploads/1/3/0/7/130738928/vojogojadewawiteti.pdfIn PDF document text
- http://files.jaredmathisen.com/uploads/1/3/1/4/131454216/aaa6a9d2.pdfIn PDF document text
- http://files.roxannaalbayati.com/uploads/1/3/1/4/131483209/metowonamev.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8154/7424/files/44218781742.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5382/5694/files/lobegivuzorojogifijifor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6544/9365/files/bazalalevu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9266/2688/files/65514987094.pdfIn PDF document text
- http://files.agrawal.people.ua.edu/uploads/1/3/2/6/132683289/rapuxasonamata_kitejewelasaf_fejebolorokomub_supapasivodid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0234/files/kujuzup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6935/5670/files/66853334379.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7211/1260/files/83290827208.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7542/7735/files/33251252298.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3675/3570/files/henry_s_law_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0703/1966/files/55615290768.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9419/6902/files/45767228156.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000656a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x656A | 5648 bytes |
SHA-256: 4d39d9dd218098e986ced2e9581b059501227c0713a50d26aa72be67ed016f8d |
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font_01_sfnt_off000078a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78A8 | 3204 bytes |
SHA-256: 6eccce38622d4d4b722dbde0495d58de6550d1aa0d38ecaf99973f5005ed093b |
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font_02_sfnt_off00008599.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8599 | 2320 bytes |
SHA-256: e18682b3fd46480e9666d503c4d562864582807b4e0cbc1ca2988c903de9febe |
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font_03_sfnt_off00008feb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FEB | 11584 bytes |
SHA-256: cd7a02b9bddd3f74a1773f60e54506cf80bc31d388d387e599d0dfee2708c9c5 |
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font_04_sfnt_off0000b66f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB66F | 16224 bytes |
SHA-256: c3f93d69e3cb30c81ae8f35965ac9f1a1a35941069675b7c0fcc3f03c8d11774 |
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