MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent call-to-action button and numerous embedded links, characteristic of a phishing or social engineering lure. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which likely serves further malicious content. Another heuristic flagged a large number of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute malware. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=five+year+plan+template In PDF document text
- http://puxugevem.janetahrens.org/uploads/1/3/0/7/130775612/9163af25.pdfIn PDF document text
- http://files.cherylynsalon.com/uploads/1/3/2/7/132740553/8800273.pdfIn PDF document text
- http://files.mintconditioncoinringcrafters.com/uploads/1/3/1/3/131384281/wibosagasitu.pdfIn PDF document text
- http://files.indonesiaagainstaids.org/uploads/1/3/1/4/131453847/xibosogo-witikin-lixesevofejoduw.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/1/0429/8833/9361/files/bekuvozagupisosijafode.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2636/6116/files/jozoxiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35679391278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5741/3270/files/20182417212.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2072/2080/files/63650020720.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0192/0157/files/zoxizixufegoloveximuxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6913/6280/files/nrsv_catholic_bible_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5042/6787/files/picada_de_aranha_marrom_tratamento.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/beginning_algebra_11th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ximulomonarosaw.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_off00007200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7200 | 4584 bytes |
SHA-256: ee31e8b1058021771a618e7e8f56df6f896d0b484622b65b651747ed77ca6d5d |
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font_01_sfnt_off00008171.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8171 | 10000 bytes |
SHA-256: bc25b25bbc73e14921af93a858a47306e6714f36c12615b811d51ee825d5b8ce |
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font_02_sfnt_off0000a378.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA378 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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