MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The embedded JavaScript is a primary mechanism for executing malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://istruttorecinofilo.it/userfiles/file/gijegol.pdf In PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606da0a1c288b---22599284269.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/248f43838518c59b0158537212ad010e/50381285304.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cab46a9aa53---32745266759.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083974e2b517---javenediwufebopajutufu.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/40393274524.pdfIn PDF document text
- http://normel.org/files/upload/file/62560586058.pdfIn PDF document text
- http://gunjanjain.com/app/webroot/js/uploads/files/nekeji.pdfIn PDF document text
- https://art-lamps-rali.eu/files/file/julewuv.pdfIn PDF document text
- http://toicodonlyson.com/uploads/files/43121258355.pdfIn PDF document text
- http://alliance-ic.ru/uploads/file/gusajetatizomitob.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/cb6bb3561dabc19585c5758848620544/26946120615.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/10b228ef8e5b42647429ee69cc67746c/jotolufojij.pdfIn PDF document text
- http://turar-mussin.com/userfiles/File/mopudi.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/45a2246bce6bbf5fe6dbc7283a31259a/jaseduk.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/28391330114.pdfIn PDF document text
- http://homeopathyhk.com/files/90395828055.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/15473676727.pdfIn PDF document text
- https://kientrucqhouse.com/uploads/image/files/4290330044.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/666a78e5c532192a92a38485c846cde0/bolelop.pdfIn PDF document text
- http://rapet.hu/files/lojexujobuvaborok.pdfIn PDF document text
- http://ksklinika.ru/ckfinder/userfiles/files/82644622338.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/43533655241.pdfIn PDF document text
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e01db5d848c---xafugela.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=cuidados+inmediatos+del+recien+nacido+sano+pdfPDF link annotation
- 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_off0000c210.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC210 | 17620 bytes |
SHA-256: 38b4dfb6bb7bee70d94c5b7576113d9c5495e5527167f85f7398da3a7f8eb8a9 |
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font_01_sfnt_off0000ee59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE59 | 10912 bytes |
SHA-256: 5c4c3902209bf18308f008fe2a6c32eaaeed572297f95f4bcc92bdda65bace16 |
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font_02_sfnt_off0001079e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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