MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure indicates a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9939
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://denimder.org/resimler/files/91574337173.pdf In PDF document text
- http://flirtproducties.nl/ckfinder/userfiles/files/17978469496.pdfIn PDF document text
- https://amatnieks.lv/pictures/image/datejokemegazapupajeje.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0a32224bd---datezuxi.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/zunivuterititevevekudener.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b263bf2167e---83871152222.pdfIn PDF document text
- https://dancleland.com/img/upload/file/51820082952.pdfIn PDF document text
- http://ijdssymposium.eu/upload/disiwedaned.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16119c98eea8bf---kegisudekutu.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/ed8668c66f068af3cd8b9ec615440735/80629804668.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608efc08751cd---forosigedap.pdfIn PDF document text
- http://mellorymotors.ru/admin/ckfinder/userfiles/files/79455564829.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160fd9ddeee237---85178608341.pdfIn PDF document text
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/8kj5jtq9i965t2fcr97c3a33q5/80878458584.pdfIn PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/0e5f071b0438b3000951e64a21c9f6ac/kumixuzirukevoradi.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/t2v787gaum3slgmif28cp3dhcs/pedesixotimamobofogo.pdfIn PDF document text
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/0448cf652b54ede30926158b0f800590/nupefo.pdfIn PDF document text
- http://casavacanzesanvito.eu/userfiles/files/zekeligagikopotixapanapa.pdfIn PDF document text
- https://groupburuemas1.com/contents//files/xavifuzalasevalam.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16077b747cd87d---jaribenilepowud.pdfIn PDF document text
- https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/h16cvrdqissmbi3kdr5j7384n0/sidemi.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161378f192fe45---dufewaw.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c34a2512f71---ratasezarikumunojef.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705f870c58a---62352935152.pdfIn PDF document text
- http://autofactory-jin.com/js/upload/files/68451794203.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161283eb0eabee---mamuvarefulobotepekeniv.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=list+of+all+english+words+with+meanings+in+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_off0000c71a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC71A | 10988 bytes |
SHA-256: da13835373dc122725b64b7e76b37f420b9a13a329fbaa59fe24ffb0aec17e3b |
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font_01_sfnt_off0000e03f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE03F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f851.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF851 | 17056 bytes |
SHA-256: 58159af2f83aae88781f0724d68e5b6b8d1d073f3b2dd9ebd803c6a22eebac28 |
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