MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as a phishing trojan and contains heuristics indicating it's an image lure linking to an SEO redirector. The embedded URL, while marked as benign, is part of a pattern commonly used in phishing campaigns to lead users to malicious sites. No scripts were extracted, but the overall structure suggests a phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.6030
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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/nCRFBnYrBHY/square?utm_term=java+program+to+find+largest+number+in+an+array PDF link annotation
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8f1b02f3c4128e1881048/1625878961145/73785144535.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f0d3e521e37b5b0f364fb0/1626395622186/74585831810.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee79f18e3fff2bd3c3d7e8/1626241521921/wesovutabodig.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60eda9e8b564270cd6ea498b/1626188264965/wajigo.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_off0000b73d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB73D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF54 | 11252 bytes |
SHA-256: 7780998694d40d8743673e5fd0b43f039ecd1f9088af1aec71a5f066821b6769 |
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font_02_sfnt_off0000e956.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE956 | 16532 bytes |
SHA-256: 7de2720312ee53f1b239885067befabd3ea8fed2061ea4ca9b8117cdbac8ad03 |
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