MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, designed to trick users into downloading further content. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic, suggesting a lure for free downloads. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=cbse+class+12+chemistry+syllabus+2020+20+pdf+download In PDF document text
- http://files.rpskillsunlimited.com/uploads/1/3/1/1/131164081/gokebolu.pdfIn PDF document text
- http://files.stanthonyschoolsg.org/uploads/1/3/0/7/130739419/cd9140f865.pdfIn PDF document text
- http://files.atouchofcolorbytamilee.com/uploads/1/3/1/0/131069875/punododiduxujori.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/1/0432/5274/4356/files/35187974166.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8693/0329/files/punupofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/56449571764.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9173/8277/files/tabetikonibobuzibenuzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6713/8470/files/61719440714.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4935/2349/files/runijunazoxamit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7228/2008/files/lekurabamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2073/0011/files/nagejalezuwizir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9058/3464/files/98822010489.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9980/0217/files/runumatiginofokapekaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9212/4572/files/36000083526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9354/1535/files/92083322767.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0042/9731/files/33010165116.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0391/7974/files/sokigiwepilafidex.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66AB | 5960 bytes |
SHA-256: dd1bfe31c7e7633c5b31a3c0ab7179276479b3c2838cabcacbe28835e947c682 |
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font_01_sfnt_off00007ad7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AD7 | 6164 bytes |
SHA-256: b3ec26f27008b279be7fab92192b801d8c67667ee6ab98fcd8b1d8d65b4e37a7 |
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font_02_sfnt_off00008c0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C0C | 10284 bytes |
SHA-256: a2e64223c933e1ba4909f1c037513441e7e66074b663f17f2981da253f6b484e |
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font_03_sfnt_off0000af57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF57 | 17492 bytes |
SHA-256: dae21f5a37ae9460119d87f8c9cff400b9ea70d6c0184163235e92195f9afbc8 |
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