MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a high-severity heuristic indicating it's an SEO redirector used for phishing, specifically a 'free-download' lure. The embedded URL `https://crysiq.ru/square?utm_term=light+blue+and+black+hair` is the primary indicator of this phishing attempt. While no scripts were extracted, the PDF structure and the nature of the URL strongly suggest a phishing attack delivered as an attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.5817
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://crysiq.ru/square?utm_term=light+blue+and+black+hair PDF link annotation
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ede66936d5170423614613/1626203753022/corrupt_popes_in_the_middle_ages.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e932da3ba7d954d546c4c2/1625895642333/camp_kinser_commissary.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e901e4320dbd0de27fed0f/1625883108826/97273685657.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8d9daa0ce974628282d31/1625872859111/mat_solved_papers.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_off0000e3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fbe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE0 | 10648 bytes |
SHA-256: 611a32583bc12b25661af24e2e6ef9bb3f502f4660fd4115d3130a61b99c4b63 |
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font_02_sfnt_off000113ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113EA | 16592 bytes |
SHA-256: cf15ecbc09e3b0119166ad68af21b3fefd0deff16f88c0711d86366953eea67a |
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