MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites. The heuristics indicate a link farm designed to direct users to potentially malicious content. ClamAV detection and ML classification further support its malicious nature, likely as a phishing or redirection tool.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd7be5a2a3---kukonez.pdf In PDF document text
- http://naturabliskociebie.pl/userfiles/file/bapurusix.pdfIn PDF document text
- http://lexus-custom.com/js/upload/files/rimonomufemiziwezido.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070445ecea2c---82523009575.pdfIn PDF document text
- http://eldmsh1.ru/js/ckfinder/userfiles/files/67446431347.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b89192eded1---torofeme.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/nfgcgvo5uue8rmget914g12i6c/vapaw.pdfIn PDF document text
- http://superplasticizer.cn/d/files/88842296586.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202104/file/14029198588.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606e3e7d1b10e---jikugiduradebuworaseduxu.pdfIn PDF document text
- http://familycrawford.com/clients/3/31/31f1fdc6e90c562b7578e9c437f7c1bf/File/zibosujoxarizu.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/d6f51f0090c010cccb76a1655dcbd247/jotemedi.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0285053d2b---zemuresovomo.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/19636039294.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3397fab177---sopofatosa.pdfIn PDF document text
- http://location-venise.com/italie_documents/files/35990205793.pdfIn PDF document text
- http://bruisedreedfoundation.org/clients/4/4d/4d9d7eec3bf3a09fa0457ace138f6a4e/File/sarenibepujisufanuj.pdfIn PDF document text
- http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/lesaxo.pdfIn PDF document text
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/0879f8641e0efba96baa85f2f09e311e/rimazixisugibev.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/49941830630.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/f8cc99e47dd9ca26a7db8b056786c952/57106543635.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607739668e303---89623152058.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/a9e0kjdruk61k5eph9mpq5f9ki/29424775417.pdfIn PDF document text
- http://blackhorsesc.pl/userfiles/file/menexivaxomifirolorewor.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/83c321f5de2cadd86d55e19f26486e4a/tubugeguziximesovizugater.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/8781f3037133d925360c444b707d6e4a/zananinusalorewalusopeku.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=natural+c+sectionPDF 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_off0000ea66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA66 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001027d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027D | 10300 bytes |
SHA-256: 96c20da0fc099877a792a877e108d36332279d657e4d488508e4245a3f10daf6 |
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font_02_sfnt_off000119d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D4 | 16796 bytes |
SHA-256: ec9c74c3ee114f9684ff78ab10eca45d11532e7793441b955752ff0bf6d8caa7 |
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