MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm and a redirector to malicious infrastructure, disguised as academic notes. The ML classifier strongly indicated maliciousness. The embedded document body text, though heavily obfuscated, contains a URL that is also present in the heuristics and IOCs, suggesting a phishing or scam attempt.
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.com/pify?keyword=bsc+agri+1st+sem+notes+pdf In PDF document text
- http://files.alluringaffairs.net/uploads/1/3/1/4/131411688/8744432.pdfIn PDF document text
- http://files.ladybosproductions.com/uploads/1/3/1/8/131872079/9f7b3bc438d5b4.pdfIn PDF document text
- http://files.northwoodsgourmetgirl.com/uploads/1/3/1/4/131483138/mobakubetununiw.pdfIn PDF document text
- http://sirir.butlercleanersandlaundry.com/uploads/1/3/1/4/131482995/bikifodezi.pdfIn PDF document text
- http://files.shobukanjudohawaii.org/uploads/1/3/1/4/131482853/pajagu.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/1/0428/4504/4892/files/33739241167.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0531/2154/files/mulovag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9299/2410/files/trapdoor_minecraft_recipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1800/9250/files/81662395265.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3152/6561/files/4100662967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2476/9436/files/33493485408.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6976/7842/files/antenna_and_wave_propagation_yadava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8779/7160/files/63016823374.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4755/9066/files/epikur_hedonismus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3287/0037/files/bawuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3683/4981/files/zuxaxugumuru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7368/3112/files/amplitude_modulation_chapter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9027/9574/files/tinasalagipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1796/0604/files/14215603197.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_off000061ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61AB | 5544 bytes |
SHA-256: a107a4194cb730e72c57d89ac543617c9f20fde5ae414b3a39d1c28f46fa2885 |
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font_01_sfnt_off00007472.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7472 | 9936 bytes |
SHA-256: 792b61da296de39d159b83676f94f33d530e027efea463f1604e061b48d3a3f0 |
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