MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document, likely a spearphishing attachment, designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=winning+eleven+8+apk PDF link annotation
- http://www.chatanakonci.cz/userfiles/file/57583331143.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614064632a9f1---56058164440.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/fomazagetokuzafovavudul.pdfIn PDF document text
- http://elverum-revmatiker.no/images/file/8553345049.pdfIn PDF document text
- https://www.orthovision-lublin.pl/ckfinder/userfiles/files/36800153786.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/11f89ii43p5thme68erkgubnvs/lekan.pdfIn PDF document text
- http://www.physedu.in/newsite/userfiles/files/15919700533.pdfIn PDF document text
- http://www.superior-inkjet.com/login/ckfinder/userfiles/files/36235018603.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/64116550735.pdfIn PDF document text
- http://webinaris.training/ckfinder/userfiles/publics/files/6049422652.pdfIn PDF document text
- http://studiospazioambiente.it/userfiles/files/4787795869.pdfIn PDF document text
- http://sangjeom.com/userfiles/file///xosibogezuzumutop.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/27bd8140c3252b44108a357f4bd603a5/witenajamupazoruminoti.pdfIn PDF document text
- http://yourbuilding.ru/userfiles/files/65052113411.pdfIn PDF document text
- https://menokatea.in/ckfinder/userfiles/files/xetupoz.pdfIn PDF document text
- http://tomboy2.com/images/library/File/84924126746.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/j0e3p8o6vcp1d68orlksuu1ts6/guxodemupavozidedoda.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16135977d02531---64353777555.pdfIn PDF document text
- http://80tner.friend-match.com/upload/files/35847204657.pdfIn PDF document text
- https://easternresources.net/ckfinder/userfiles/files/zawisafowivugut.pdfIn PDF document text
- http://giovanninociti.com/userfiles/files/53197495864.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_off0000d8d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D8 | 17888 bytes |
SHA-256: c4aab71ddd17176ba7d7b6df60ed0de9549393b89e6d8bfc68f5ad3228487835 |
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font_01_sfnt_off000107a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107A1 | 10300 bytes |
SHA-256: cec0fae14e9faf590e7faf1804754fe79fa65e145997abb15a9bdccdad529cd6 |
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font_02_sfnt_off00011ef3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EF3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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