MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ncert+biology+notes+class+12+pdf+free+download', which is also listed as a malicious redirector. This suggests the document is designed to trick users into downloading further malicious content by disguising it as educational material.
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=ncert+biology+notes+class+12+pdf+free+download In PDF document text
- http://files.woozeyacresllc.com/uploads/1/3/1/6/131606257/rigalitutuxiku.pdfIn PDF document text
- http://files.classicalmusictoday.net/uploads/1/3/1/4/131437878/retip.pdfIn PDF document text
- http://files.catherinebliss.com/uploads/1/3/1/3/131378999/eb510dc82.pdfIn PDF document text
- http://files.gardenandpondmaintenance.co.uk/uploads/1/3/2/3/132302926/jokobirunewo.pdfIn PDF document text
- http://files.appel-stores.shop/uploads/1/3/1/6/131606630/sigipox.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/1/0436/9140/9562/files/66917850947.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4868/0089/files/morettin_estatstica_bsica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7473/8586/files/kupetejafedokotajovem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9191/0038/files/94256139885.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0357/6481/files/vidamulugiwaper.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8374/9781/files/carpenters_only_yesterday.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6509/6857/files/78274765356.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6564/7012/files/2807048998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6579/4965/files/32261885826.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0020/8294/files/85185948683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/bezapejomomovamoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2052/5469/files/vorewijidofasekiburukiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2666/8952/files/30936514361.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/56367021592.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_off00007fa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FA7 | 5812 bytes |
SHA-256: 46c41c7c59b6ae1318fd2611c33c791792ee078ab4ca28ee37887409efc1648f |
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font_01_sfnt_off000093a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93A5 | 10248 bytes |
SHA-256: a904354d22ee9e02a39afeec0ff740526a52e6308c33b82040ac4fb4259e7b15 |
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