MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated, preventing analysis of its specific lure, but the overall pattern indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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://irlanc.ru/uplcv?utm_term=which+animal+blood+is+cold PDF link annotation
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/0326768e0318c86e9ae6645f54936e17/gimatukopikunumi.pdfIn PDF document text
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/1f122c016458955866cb77b320cbdebf/21404720973.pdfIn PDF document text
- https://mszukam.pl/dat//file/1948532116.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a22760249b9---vitenelekitimoxigeruwaj.pdfIn PDF document text
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/jh33b29e0seb7gu1r10729bv17/tobin.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee65f4ec182---rituwojugavibedo.pdfIn PDF document text
- https://m-astar.com/UserFiles/files/52407537143.pdfIn PDF document text
- http://onishi-kyosendo.jp/archive/90098578586.pdfIn PDF document text
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160891bbfb24e6---repiwel.pdfIn PDF document text
- http://korytnica.net/data/files/90470905749.pdfIn PDF document text
- http://hphs1958reunion.com/clients/47465/File/67560379696.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/4850776142.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/8c1f00e43741e5b69b0a6d492134e739/dujidenosenetalovel.pdfIn PDF document text
- http://vindindex.nl/images/uploads/59335092418.pdfIn PDF document text
- http://www.tramag.pl/upload/file/divikuwuze.pdfIn PDF document text
- http://teckim.it/themes/userfiles//files/82422641157.pdfIn PDF document text
- http://libertyquad72.fr/userfiles/file/56351137991.pdfIn PDF document text
- https://renetravel.ro/images/files/jijibuwemajowagijakeze.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/25d137dfdd14eacddead57f201fc7a1a/7416262230.pdfIn PDF document text
- https://inoxquochoang.com/app/webroot/files/images/pages/files/66500399843.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/28853830377.pdfIn PDF document text
- http://pc75.net/upfiles/file/1621838077.pdfIn PDF document text
- http://pvhs1967.com/clients/a/aa/aa78cb05297cd93d8a9ab6bd1eb8a3c4/File/76757165498.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607d211b6d2e5---30278274962.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_off0000bbad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBAD | 15020 bytes |
SHA-256: 9a08fc927e2d00c11b6c523cb07c56050442f5b31b66056c12aa09fe40322ef8 |
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font_01_sfnt_off0000e1c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f9d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D8 | 10440 bytes |
SHA-256: 5cb753ee7eebdd4e22fd268ac7fe10688fcd868ef4b78d8f155f8f401450c6c7 |
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