MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. These links likely serve to obscure the final malicious destination, which could be a phishing page or a malware download site. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://queure.ru/uplcv?utm_term=economics+syllabus+for+upsc+pdf PDF link annotation
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c0663ed7a95---80152180422.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16096aed386f7d---gixejabo.pdfIn PDF document text
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f56aec2f5a---53936314613.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/bm7fuacm6d30s4hj5h4cbf158j/susovuru.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610af5e78798e---dosajitunuginimurumizuku.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/73315862089.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/luwob.pdfIn PDF document text
- https://zahnersatz.pl/userfiles/files/gesuxujavaged.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1609f8ec77216c---fidogibirewamuwazusapu.pdfIn PDF document text
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/4220fbabea18c5ca068ee708d11abdbc/fasifedesamorip.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160719f7da26a7---81089642131.pdfIn PDF document text
- http://bakersfield.thepokeluau.com/uploads/files/55639081872.pdfIn PDF document text
- https://jungleflightchiangmai.com/Uploads/files/zuxepizakubemibofe.pdfIn PDF document text
- http://meyergarden.com/ckfinder/userfiles/files/likawivusofuri.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe29506749---1186691075.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/e76790b3cce8f5de3baf2ab1cf74faa1/85045335305.pdfIn PDF document text
- http://apexnepaltravel.com/userfiles/file/2076341590.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a90ed31df1---muwobiwapegajupugovoja.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/ja90vusg0vqnfhklmbt0t8db9o/benagutoxiwekozazanub.pdfIn PDF document text
- http://pi-consulting.ch/download/gevamuzap.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e7faf162f---fexavigonelokamot.pdfIn PDF document text
- http://lueckerreunion2020.com/clients/e/eb/eba09433058400eda594a485f9004317/File/36336981376.pdfIn PDF document text
- http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/34061284597.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_off0000e727.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE727 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF3E | 10888 bytes |
SHA-256: e2d53b12c9d8b7038d7aabce5c7e5f18b5420ce1f5d8cfa2aed6be29acaf75b8 |
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font_02_sfnt_off0001181d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1181D | 17392 bytes |
SHA-256: 61b7b43c41dfd252a5b54c49ff3e043a0232205483e7d57782b3ec4719853a00 |
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