MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://wu-pao.com/upfiles/editor/files/sufetujulokenoxogenojap.pdf In PDF document text
- http://boldino-hotel.com/ckfinder/userfiles/files/43372884296.pdfIn PDF document text
- http://xn--or3bi2da319p.com/upload/fckeditor/file/24075280546.pdfIn PDF document text
- http://microsolder.hu/userfiles/files/34999658186.pdfIn PDF document text
- http://www.hkrns.org.hk/ckfinder/userfiles/files/966232551.pdfIn PDF document text
- https://fenicia.uy/fenicia.com.uy/uploads/files/57009901205.pdfIn PDF document text
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614f381b51409---7800918546.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/1cqi33p8f3b67235egm2494h44/67890347090.pdfIn PDF document text
- http://concilianavarra.com/userfiles/files/nolaforul.pdfIn PDF document text
- https://hrmconsulting.biz/upload/files/21588173956.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/larenatinedute.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/lokiwisurozapigade.pdfIn PDF document text
- https://qian-ho.com/upfiles/editor/files/95743684039.pdfIn PDF document text
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/13020132798.pdfIn PDF document text
- https://dunaweb.co/bg_image/files/sotavevuxomekevotumijan.pdfIn PDF document text
- https://rmp-familienanzeigen.de/cms/files/fatupakan.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/46a2ed3c48f504eefe9a01660ca0dbd5/44174345928.pdfIn PDF document text
- http://alothongtin.com/upload/FCK/file/71699607890.pdfIn PDF document text
- http://fitviewer.com/files/file/20130558426.pdfIn PDF document text
- http://alemotta.com/resources/original/file/1031015162.pdfIn PDF document text
- http://jinistudy.com/_UploadFile/Images/file/mekuvebi.pdfIn PDF document text
- http://www.520amis.com/upload/files/tokagox.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=calcy+iv+ios+downloadPDF 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_off0000abbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABBC | 14872 bytes |
SHA-256: 3d609b67ca2862434de7240d5365e87cd5cb63a1126713a0c0da9c0e93cbde6b |
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font_01_sfnt_off0000d119.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD119 | 10332 bytes |
SHA-256: 1febedaee912d4799cdf3553a0b2220d6f905a01f81de117d80ede937070ade4 |
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font_02_sfnt_off0000e894.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE894 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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