MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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://korean-school.hu/hangul/userfiles/file/tepovinojilobu.pdf In PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160846ec50085b---96186289781.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e85c0382c5---gonipuxizifavivusul.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/42453318621.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/cqns15qttdsjb5ji2dbe7kv8n0/65823167659.pdfIn PDF document text
- https://bloomeng.com/uploads/kuledonuzekutababumaw.pdfIn PDF document text
- http://slanfusa.org/clients/47225/File/12351737767.pdfIn PDF document text
- https://lawyerupsmart.com/tempimg/file/76051260296.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160801e3d8659a---pewinadalolapesebi.pdfIn PDF document text
- https://frontlinetherapist.com/wp-content/plugins/super-forms/uploads/php/files/0806b37cfe52c06748f0f0102a6645cd/gadizatudon.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/5958480945.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c95d2b0c23---vaputurof.pdfIn PDF document text
- http://kancelaria-perfect.pl/app/webroot/media/files/34181840998.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/64vlg80293bmpg0i1nl6uq4s94/28366870012.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/91c7d0c358556b6189ad8564b2b8e75d/wofibitezaxobazulawowigas.pdfIn PDF document text
- http://www.retorika-zidar.si/ckfinder/ckeditor_uploaded_files/files/warojebodavawi.pdfIn PDF document text
- http://gapoom.com/upload/fckeditor/file/74705046444.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210619143648.pdfIn PDF document text
- http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/genuv.pdfIn PDF document text
- http://africanhairbraidingsalon.com/userfiles/file/xixogevazox.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de616e09ad---43471366671.pdfIn PDF document text
- http://seksdagen.nl/userfiles/file/4807482328.pdfIn PDF document text
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16086a80768f52---73142294280.pdfIn PDF document text
- http://poorclarescork.ie/images/43547624732.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160728ae464aad---31285337029.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=dice+questions+for+ntpcPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E10 | 10512 bytes |
SHA-256: 4a3e108f4f904dd3ac330505cda29ab5ec1e3104c28b78ef7491f1c2fdd61caf |
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font_02_sfnt_off0001261a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1261A | 17436 bytes |
SHA-256: a77c48aa694cb9a280b3f317e3e900d078264f595c0347dee1e98ef6b9e4b2a1 |
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font_03_sfnt_off00015418.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15418 | 16100 bytes |
SHA-256: a5dc1b30dc3632a67f576452f4b43380586cc5790bd5c2412cd690764d881ec6 |
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