MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure for 'public speaking skills for students pdf' which likely leads to a phishing or malware download page. The presence of a malicious redirector and a large number of external links strongly indicates an attempt to lead users to malicious content.
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.cc/pify?keyword=public+speaking+skills+for+students+pdf In PDF document text
- http://xinamoj.kansasnursingstudents.org/uploads/1/3/1/6/131636725/fesirir.pdfIn PDF document text
- http://files.arespta.org/uploads/1/3/2/8/132814119/5046027.pdfIn PDF document text
- http://fadan.projectnohunger.org/uploads/1/3/1/1/131164250/2213426.pdfIn PDF document text
- http://kikab.dunollycottage.com/uploads/1/3/1/3/131380600/wezerevusu.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/1/0431/2317/9677/files/arabic_words_to_english_translation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1459/4464/files/54713605803.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3803/1518/files/nimezefusebowal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9183/6566/files/34108442992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6454/0835/files/xogimunurek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1800/2340/files/wide_eye_meme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3748/1365/files/46592534999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7399/4905/files/sovuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3437/7377/files/641647133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5118/6336/files/pathfinder_burnt_offerings_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1381/5966/files/itextsharp_convert_html_to.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8531/4715/files/icp_discography_kickass.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7301/0840/files/5805821355.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/229905594.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_off00006682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6682 | 5528 bytes |
SHA-256: 764a52aca5d74a8ccc971508f8112e43913a37c75e52f7fc51fa9963f1d1ee84 |
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font_01_sfnt_off0000794f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x794F | 10300 bytes |
SHA-256: 24275221386c0883f47dd39e6f39393ca7248253196b10a7ad9a8a488af651f5 |
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