MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, identified as a link farm, with one critical heuristic firing indicating a redirect to known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Canula nasal de alto flujo pediatria pdf' and the authoring application 'wkhtmltopdf', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or scam site.
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=canula+nasal+de+alto+flujo+pediatria+pdf In PDF document text
- http://files.metaphysicshouse.com/uploads/1/3/1/6/131606968/noxopajuwe.pdfIn PDF document text
- http://files.jessicasomerville.com/uploads/1/3/1/4/131437680/9009647.pdfIn PDF document text
- http://files.elasad.com/uploads/1/3/0/9/130969470/kuwed_niwub_koselotel_kufemevuneziso.pdfIn PDF document text
- http://files.vietnamcafesandwich.com/uploads/1/3/0/7/130775563/adcb77c45c.pdfIn PDF document text
- http://tobenufe.floorexpertslimited.co.uk/uploads/1/3/1/8/131856271/zimodagixisi.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/1/0433/5904/3749/files/xutebemanowawilob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7155/3189/files/rivubebabes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/5616/5027/files/building_construction_mckay_volume_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4670/7104/files/semikolabogowuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1300/3674/files/92619348447.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5193/3078/files/18497973437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7507/5225/files/secondary_hypertension.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/nawijesimiweju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/fimadawafatikofadusuwepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4687/1974/files/sokusivax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2035/2677/files/entire_contract_provision.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/2590/2240/files/housing_society_bye_laws_karnataka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0239/5798/files/kikebexuvasilejejawuzere.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_off00009157.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9157 | 5016 bytes |
SHA-256: a4c36e1788142e1f759ab611c214acb671bc44bec8f79517e62e8a7899bcc25b |
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font_01_sfnt_off0000a275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA275 | 14620 bytes |
SHA-256: 217a46771f84a73d8c1863bdafc6b5163d21a800c0490ec80170d47921e83f9e |
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font_02_sfnt_off0000d00e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD00E | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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