MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites and other domains, suggesting it functions as a link farm or phishing lure. The embedded URLs, such as 'https://crysiq.ru/uplcv?utm_term=cambridge+english+advanced+result+workbook+key+pdf', are likely used to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://crysiq.ru/uplcv?utm_term=cambridge+english+advanced+result+workbook+key+pdf PDF link annotation
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16086aa0114743---fesekinuwojo.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f36fde5762---23802225878.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/95a10f14b23639db406e0334d2edc38d/mofokibajez.pdfIn PDF document text
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/9n4sg8s2em583891qii4cpi2s7/gujuzilawonude.pdfIn PDF document text
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/70dfe63c20fc4ad86d21d5e2c4279c4c/37888663436.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb6bd591fd---defakizezerutofagaxuwilot.pdfIn PDF document text
- https://nirmalujjwal.com/public/ckfinder/userfiles/files/77680417101.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/47092471428.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160be7bdb4e0af---18231984376.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/c4d75f84f0ac17623f105b9e53585cdc/xegomodanunutorajuvibe.pdfIn PDF document text
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757fe2df847---zoposerirevile.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/belofetugunete.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/94719335082.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/bimiw.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/bc0a4ad624adf3f1454c5ff001c7248e/42811235271.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCC | 5932 bytes |
SHA-256: 6024bb323459a35b65572cb43aa03d4b2f0a54592a9199f1875ed6f256cb5edd |
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font_01_sfnt_off0000f0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E3 | 13564 bytes |
SHA-256: bf85409d52586bf00eca0cbdbf81d43dd4f4d23a22a8762475550b3065910f2c |
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