MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF exhibits characteristics of a phishing lure, including an image-only design and embedded links pointing to potentially compromised websites. Heuristics indicate it's a link farm on disposable hosting, designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to facilitate further compromise through the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://coretry.ru/uplcv?utm_term=english+book+pdf PDF link annotation
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16146d1f49129a---80830217310.pdfIn PDF document text
- https://podiummagazinenews.com/ckfinder/userfiles/files/kubelavone.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffb24d57ad---kabunanoxer.pdfIn PDF document text
- https://bhavanarayanaswamy.org/userfiles/file/14777515388.pdfIn PDF document text
- http://cowmoo.org/ckfinder/userfiles/files/kizusoxerulijonisijotojo.pdfIn PDF document text
- https://rais.bg/uploads/file/85116735279.pdfIn PDF document text
- http://gamax-moto.cz/data/dokumenty/22742146667.pdfIn PDF document text
- http://vdtonline.vn/static/uploads/editor/files/91088366727.pdfIn PDF document text
- http://artetendasud.it/userfiles/files/towapizi.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/1e566eb80a2e58dad8092172178a8f19/86971841779.pdfIn PDF document text
- http://domgr11.ru/uploads/files/munokedeforupax.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/1505e85c2a9b2ffe66ad60eb8b9b204b/49470313598.pdfIn PDF document text
- http://www.sloepverhuur-debiesbosch.nl/upload/files/38377137814.pdfIn PDF document text
- https://milorem-service.ru/userfiles/file/73254218976.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/161455f52e1c06---suzutoxute.pdfIn PDF document text
- https://matricula.arendic.cl/files/86763136577.pdfIn PDF document text
- http://grotech.in/userfiles/file/13676335467.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133f02c07ea6---sanimudivazuvodidozidi.pdfIn PDF document text
- https://alihuata.com/userfiles/file/sazegabadibud.pdfIn PDF document text
- http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/49405981721.pdfIn PDF document text
- http://wangguanhardware.com/userfiles/file/gixezuwaka.pdfIn PDF document text
- http://saluteebenesseresas.it/userfiles/files/fudepelubu.pdfIn PDF document text
- http://www.giuseppe.ru/ckfinder/userfiles/files/moninibitupoxozifuvolo.pdfIn PDF document text
- http://transchem-tech.com/Uploadfiles/files/fepazefim.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_off0000b307.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB307 | 14148 bytes |
SHA-256: 7b2452d1fdc86eb70278d8e7cec9ade4001adc4650de7a767e6faeb91d74fd0b |
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font_01_sfnt_off0000d5eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5EB | 10500 bytes |
SHA-256: 3197534a86fba364db32d8e6ec9af3976463566057a8433f69151c21cbcd7ab6 |
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font_02_sfnt_off0000ed20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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