MALICIOUS
76
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by an ML classifier as malicious. It contains embedded URLs, one of which points to a Google feedproxy service, suggesting a potential phishing or redirection attempt. While no scripts were explicitly extracted, the presence of embedded URIs and the ML classification indicate a suspicious nature, likely related to spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.7788
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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://feedproxy.google.com/~r/sq/ugae/~3/iYdez4bKglI/square?utm_term=business+english+student%27s+book+pdf PDF link annotation
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e84e93f084817bae61690f/1625837203972/1831200705.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e93d5ec91b61347ea488f4/1625898335149/least_stressful_careers_that_pay_well.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec87480d838b6c850d53ff/1626113864909/febaxawovebiwezopiniwub.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c463.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC463 | 10932 bytes |
SHA-256: 3efabfbe45fea7565879e9e0e6dcce0bdf395c46927d6354ebfe02d4a6906383 |
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font_01_sfnt_off0000dd43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f555.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF555 | 15552 bytes |
SHA-256: 079a38c3d48799eed548b51c6dbe9461358d178eb77ea40d3df368a6b56bd405 |
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