MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.ru/pify?keyword=tratado+de+bucareli+resumen+pdf`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam attempt. The presence of many links to external PDFs, some hosted on Shopify, indicates a link farm strategy to improve search engine ranking for malicious content.
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=tratado+de+bucareli+resumen+pdf In PDF document text
- http://files.juliehortonphoto.com/uploads/1/3/1/3/131382470/noliwijadoxa-lotutidanuwumu.pdfIn PDF document text
- http://files.williammonaguenativeart.com/uploads/1/3/0/7/130739747/vunidegote.pdfIn PDF document text
- http://files.alphachichico.org/uploads/1/3/2/7/132740234/2485425.pdfIn PDF document text
- http://files.katelyndiane.com/uploads/1/3/1/3/131384635/bumanowor.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/1/0437/1513/3605/files/xesipodejavusuxoditigojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0292/1111/files/3_golden_rules_of_accounting.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4228/2394/files/mojesedikikuboxubovukuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19490865332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8145/8069/files/45427726467.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/18695412901.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3309/1480/files/71892139977.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7353/5142/files/17235245644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9970/0889/files/pamokixik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1522/4996/files/fobipebigixupopelidebenos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2387/5746/files/pivafinaxenegikuxeviwim.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_off00008b91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B91 | 5392 bytes |
SHA-256: ca0c4af25ce63fcc7e86a5c7fc0f89c44dbc57efdb36a63a29359360f3c58ab9 |
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font_01_sfnt_off00009dc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DC6 | 11004 bytes |
SHA-256: 806642f223afd6114e7c8240cad7125bdd447ea7937abd9ba04c38cbf87c75f7 |
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font_02_sfnt_off0000c1d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1D1 | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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