MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to various domains, many of which appear to be compromised WordPress sites used for hosting PDF files. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's purpose is to act as a link farm, likely to direct users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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=cvc+phonics+booklet PDF link annotation
- http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/wolutojutadikazufipax.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/61a0c29f4df67401b8cb1da26f4ac2a5/mamurepolifefiw.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb41fe7f35---rirojeludonumuzus.pdfIn PDF document text
- http://xn--om2b25zm6igqb.com/ckupload/files/bovot.pdfIn PDF document text
- https://linoforti.it/file/76906032104.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c99eb7905b---46075163298.pdfIn PDF document text
- https://ideylia.fr/uploads/file/78475446661.pdfIn PDF document text
- https://clubesolbra.com/uploads/files/67716092856.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/101106141.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/280234567510.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/rciskjfskq7b1njlno64l3b19g/buwopelatige.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/zevubijobe.pdfIn PDF document text
- http://dges.in/userfiles/file/kusesivujezugosi.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/31284240996.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/vadujasilubupupipovewazi.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/zirosituvaferokisorido.pdfIn PDF document text
- http://artpolinakuzina.ru/pict/file/63676059582.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/23741718748.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/ra05fpm2c1ga4n1amut72qtuoj/bonupufe.pdfIn PDF document text
- http://gloucesterclassof81.com/clients/23558/File/25045991960.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/6a787f71481f4034d47d5de8f35d9bfc/36365712515.pdfIn PDF document text
- https://atkarisuli.hu/userfiles/file/kodavefowegimufuradolov.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_off0000bf1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF1C | 15292 bytes |
SHA-256: a55a37fc583f731a8ab95eff20ba473f2a4ccaf1f2d039e8246b2d49dfb2fd30 |
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font_01_sfnt_off0000e632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE632 | 10540 bytes |
SHA-256: 0918f604e0e4c0a159e2c80390bf4cad90c1be1156ce12b1782e0cbe3798e669 |
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font_02_sfnt_off0000fdf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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