MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV and an ML classifier as malicious, with multiple heuristics indicating it functions as a link farm. The embedded URLs predominantly point to compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to phishing or malware-hosting pages. The document body, though heavily obfuscated, contains text related to "partitura pdf" and "wkhtmltopdf", indicating a lure disguised as a PDF document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://queure.ru/uplcv?utm_term=oh+noite+santa+partitura+pdf PDF link annotation
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb6b3d54b9---53776352520.pdfIn PDF document text
- https://equator-maritime.com/userfiles/file/dedozepefurelojenisupekuz.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd7be5a2a3---kukonez.pdfIn PDF document text
- https://mmszke.hu/files/file/bofebegufopilinefuwez.pdfIn PDF document text
- http://andlupa.com/userfiles/file/fujamelafog.pdfIn PDF document text
- http://dolphinkorea.com/files/files/lopidigetuxexovupagev.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/1v6ab1qsic8l9gekv26dlhtai6/kidizijaxovodubezizato.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7aead352ad---vumoparofozopa.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/66hdrr86humkpllr686m6r83n2/manaxidurenuxi.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/nuxamizuxizisuta.pdfIn PDF document text
- http://www.euro-fly.eu/userfiles/files/wutamopodu.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608459765b1fd---natosemewinepu.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/a615a0f1ea0826519572c1d023bdde9a/nidax.pdfIn PDF document text
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/006dda3b956029e7d5892066ea0fc5fc/jonizonilozikegevuz.pdfIn PDF document text
- http://ucity68.com/clients/e/ea/ea220da86df44fb0ae3b7c8e8295ccc1/File/kiwulaxutag.pdfIn PDF document text
- http://forter.vn/hinhanh/file/gebawutiwupovu.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_off0000ca45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA45 | 5124 bytes |
SHA-256: 1d8f695d7a6203c729d70a77a776ddf7d883d6c5a3bc1d70ca11265a424901f6 |
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font_01_sfnt_off0000dbaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBAA | 12692 bytes |
SHA-256: e5f6e2e78a3a9c5252c8e1e9094dd3c8ccb8ef70556a74e4b979aacbebbff7b1 |
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