MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as a phishing trojan and ML classifiers indicated maliciousness. A high-severity heuristic identified an image lure linking to an SEO redirector, suggesting a phishing attempt disguised as a free download. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.7788
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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/~3/7R6buoffwiA/square?utm_term=the+cultural+geography+of+europe+chapter+12+answers PDF link annotation
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e847248e76fa73c6606d1f/1625835300364/how_to_get_exp_share_emerald.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e9249acc7c08645926f5cf/1625891994894/iskysoft_editor_pro_for_mac_review.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e9171c8ce0e10532d26afb/1625888540478/free_after_effect_plugins.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_off0000c4f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4F6 | 16264 bytes |
SHA-256: f5eb15e43449c6911d566b40d143a334cc2f1cf18c017ad6ed2d1dbdb5686441 |
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font_01_sfnt_off0000eed9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED9 | 11100 bytes |
SHA-256: 37dc12702f7fc44d518b0998b5b38c52d10e9f4e877595088c952ddd5ec632ce |
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font_02_sfnt_off000108f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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