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, which points to a phishing attempt. While the document body is heavily obfuscated and unreadable, the presence of embedded URLs and the overall heuristics strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.6556
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/UZrB20b2Dcg/square?utm_term=wrong+turn+3+full+movie+123 PDF link annotation
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8c92651b7076defb34bd/1626115218773/free_printable_birth_certificate.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f1f7eaa7741909b3124634/1626470378910/2_psychopaths_in_a_relationship.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0e42b8ed7c6554e780e7c/1626399787813/pujibujok.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_off0000d576.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD576 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED88 | 16712 bytes |
SHA-256: 03f3ce4db4e88adddba5d844b3b5e34733680071fa6f81bfb487d5b707f2d57c |
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font_02_sfnt_off00011932.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11932 | 10732 bytes |
SHA-256: 328bbd18fd2409f77a4530aa3028d85923cc1d83470df475ee47e511228c5051 |
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