MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many of which point to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users. The presence of embedded URLs and the PDF_URI heuristic further support the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://coretry.ru/uplcv?utm_term=the+metamorphosis+pdf PDF link annotation
- http://metamorfoza-krosno.pl/userfiles/file/43044652562.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0b40a8e42---ritib.pdfIn PDF document text
- https://grootformaatspandoeken.nl/userfiles/file/xarojimugegegejejilix.pdfIn PDF document text
- https://prokoncept.hu/admin/blogfck/image/file/burumus.pdfIn PDF document text
- http://camdohungdung.com/upload/files/62586000627.pdfIn PDF document text
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/bazomixot.pdfIn PDF document text
- https://glearningsolutions.com/userfiles/files/saxowuvusibipurolupip.pdfIn PDF document text
- https://pharma-tools.pl/galeria/file/2459112494.pdfIn PDF document text
- http://riasztoszolnok.hu/admin/fck_upload/file/4776311826.pdfIn PDF document text
- http://peoplefineart.com/assets/202109/files/20210904153800791801.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161344c5d3ed2d---subijalasoze.pdfIn PDF document text
- https://autoprofi.ua/userfiles/file/43579338769.pdfIn PDF document text
- https://mldom.xyz/web/img/podborky/files/fulupi.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba42491c74---49001610681.pdfIn PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbf9ae4844---gevukowevako.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/widafikolunazedifid.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/dowiwase.pdfIn PDF document text
- http://szpitalstrzelin.pl/userfiles/files/96654433589.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/midiwekojumukoreju.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/lixubedogagotofu.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcc877c571---gazivasojuxelab.pdfIn PDF document text
- http://hak-al.com/resimler/files/vazepufubenewatavulaxab.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_off0000b768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB768 | 17424 bytes |
SHA-256: d26286887646088953c253cfdac0842a6eb0e55841b454d9cd4ff30e58a37e4e |
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font_01_sfnt_off0000e4e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fd00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD00 | 10576 bytes |
SHA-256: bb708165ed7688e7c034d87b6fbecd4f5b66c98b732d24546ef25bacb674b152 |
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