MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources hosted on platforms like Shopify and WordPress, suggesting a link farm or SEO manipulation tactic. One of the primary links, 'https://ttraff.cc/pify?keyword=porque+las+bacterias+son+resistentes+a+los+antibioticos+pdf', is identified as a malicious redirector, indicating the document's intent is to lead users to harmful content. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf.
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=porque+las+bacterias+son+resistentes+a+los+antibioticos+pdf In PDF document text
- http://files.brockskennel.com/uploads/1/3/2/6/132681210/vobope-nuvekulex-zezawojogatuvug-posej.pdfIn PDF document text
- http://files.cintiadana.com/uploads/1/3/1/6/131636697/gireruwegut-gulof-jigepiv.pdfIn PDF document text
- http://files.malvern-electrics.co.uk/uploads/1/3/2/6/132682039/9574694.pdfIn PDF document text
- http://files.thenoblestoneonline.com/uploads/1/3/1/3/131397927/mazuzogik.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/1/0435/3789/1480/files/46921663437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/88944604968.pdfIn PDF document text
- https://xuzubika.files.wordpress.com/2020/06/34628537887.pdfIn PDF document text
- https://xujisitugure.files.wordpress.com/2020/06/fupejilebelotazegewetaper.pdfIn PDF document text
- https://naxopovo.files.wordpress.com/2020/06/74171760139.pdfIn PDF document text
- https://lopalulejit.files.wordpress.com/2020/07/lanuvudiweduzikitutitem.pdfIn PDF document text
- https://dupowoso.files.wordpress.com/2020/07/93526517074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/xizekedoro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0159/3505/files/81080541460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/48201035985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3981/6861/files/67191336901.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3798/2869/files/94618146349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0084/7781/files/5114520854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3006/8894/files/fubafozezedofiparipubixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3702/2615/files/zanivujojegi.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000becd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBECD | 5296 bytes |
SHA-256: fa893e4ac946ee0f86041fddd4d881f27df4b1e2b0d562428e631090411b2d5e |
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font_01_sfnt_off0000d0d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0D4 | 14524 bytes |
SHA-256: 912ef35e2423a038c00d538804beed01c637ef88b7e9f597569647c770aab22c |
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