MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised websites, many of which host other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/9uann3vousdbclubpppo2ft220/36129162783.pdf In PDF document text
- https://aedwea.com/upload/foto/zukusedijelovalo.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/vmndj1dnnhvmnod73vkscfukja/xoneriperelovid.pdfIn PDF document text
- http://drentmedischadvies.nl/uploads/files/zadasoz.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a497dc8dd---69514027819.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/87171059538.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/mnq9di1dsnbdbajvvi2vas9u20/lubifu.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/7af24325a595d7482452acd5c47ed946/ravozodisilifusokelodez.pdfIn PDF document text
- http://toptoptraining.ru/img/upload/file/pewilakatufupumosadom.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/e97911dff9433b006e42fdd4b95e8800/86761462352.pdfIn PDF document text
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/85310865812.pdfIn PDF document text
- http://morard-mcf.fr/data/Files/vubixo.pdfIn PDF document text
- http://mini-garden.ru/userfiles/file/dujatuxe.pdfIn PDF document text
- http://ohsongpharm.com/ckfinder/userfiles/files/marirorununufikurul.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/68492921855.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/b9dfa54724970d0f0a17634957027fd0/74188634798.pdfIn PDF document text
- https://valleyrestoration.net/home/apf/public_html/ckfinder/userfiles/files/49070188408.pdfIn PDF document text
- http://france-ex.com/bijuj.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a25f5c45840.pdfIn PDF document text
- https://am-system.eu/ckfinder/userfiles/files/nipevudek.pdfIn PDF document text
- http://apsons.eu/files/file/lefavisulazi.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/4d93057189eb9ae0f94d6b8a1702576f/xovorazirobatajupama.pdfIn PDF document text
- http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/mexojitaferenizimotuwaf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=como+hacer+jab%C3%B3n+artesanal+de+glicerinaPDF link annotation
- 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_off0000f510.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF510 | 11256 bytes |
SHA-256: ddc143acf6bf7f32a2577ea02f91299c937bfb2e9e2729f6b6cccf24e0d4c5d1 |
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font_01_sfnt_off00010ec5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC5 | 17656 bytes |
SHA-256: 4f30963848dba453b4dd6bf07dacedde57250d305e79fe76704157735209ed90 |
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font_02_sfnt_off00013b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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