MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for SEO link farms. The document body, though heavily obfuscated, contains a URL that points to the malicious redirector, suggesting an attempt to trick users into downloading further malicious content or visiting a phishing site. The ML classifier also strongly indicated maliciousness.
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.com/pify?keyword=amoxicilina+clavulanato+eurofarma+bula+pdf In PDF document text
- http://files.keepdivealive.com/uploads/1/3/1/4/131453592/e0b38208b324ffc.pdfIn PDF document text
- http://files.changlaoshiclassroom.com/uploads/1/3/1/8/131857758/5489288.pdfIn PDF document text
- http://files.bluu.zone/uploads/1/3/1/0/131071114/nowesuzunubemav.pdfIn PDF document text
- http://vuxel.eternaltimberanddesign.com/uploads/1/3/0/7/130775823/kajuwezatozajiwid.pdfIn PDF document text
- http://files.winchad.com/uploads/1/3/1/4/131406365/ronufesipedawis.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/1/0431/5856/9115/files/26934291583.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4703/3752/files/fimewunakim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0118/2370/files/sexasoravijofafujef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3391/1705/files/jutifarexepugekumok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4944/1687/files/zoxeliwavovisuzanonin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/texirid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1375/7339/files/28802660817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1502/0448/files/diromarixajotepapip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0816/2981/files/89239226144.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4968/0028/files/25201437859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92702877098.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2492/3298/files/characteristics_of_research_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6377/9236/files/98305998458.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_off00008a31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A31 | 5380 bytes |
SHA-256: 3d7c03fddd9b1e74dfc6be6b16a14cce31cae09ee03f7dde34c79b0314d2953a |
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font_01_sfnt_off00009c6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C6C | 11980 bytes |
SHA-256: e574e9454fe6237e1ffab88d001a18bd58ed31771a71f0e020c864c63c4ff9ec |
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