MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. Heuristics indicate the PDF acts as a link farm, pointing to multiple compromised or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://messtores.ca/fck_user_files/file/judunoneselorezedilibibir.pdf
- https://ancoraeducacion.com/images/67619995417.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/1a37425a1ce1dbdd69ab7ded71bf391c/79412134240.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/53036935399.pdf
- https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/160b3bd8ddbcad---megudadoxufa.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/396m1bhcs0e8nsar9r2fvvv1m2/vedox.pdf
- http://studionegrelli.it/userfiles/files/21323241378.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160881b090c316---bixafisosereratejigalova.pdf
- https://jajugroup.com/ckfinder/userfiles/files/jatowojexefexowor.pdf
- https://ikansambel.com/contents//files/dedazuxufujo.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1b839a23f8---60964480650.pdf
- https://abhimaninteriors.com/ckfinder/userfiles/files/nutizuvowu.pdf
- https://kodcomputers.ro/2664/uploads/kuliwamavidaxom.pdf
- http://phuocthuan.vn/images/pic/file/32920111905.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a750d1f1e6---dikunoriwu.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/ulco7ftbrhsk81u5er3scvjve0/72462776564.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/17c0718cd6ee7554cf82e900c3d52ee6/wazulexetomeninux.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/e9b6f41d3268ec518c84bf8be827ae8f/nulaso.pdf
- http://cnc-soustruzeni.cz/files/file/fanev.pdf
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/ivllr4hblbi057r8rb402len03/49538246838.pdf
- https://goodline.by/userfiles/file/20450199666.pdf
- http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/79667649240.pdf
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/ce194e7e7fb75e1ff7bea2bf5a9758d4/9206486788.pdf
- http://katyababash.com/images/uploads/file/pubiveg.pdf
- http://packturf.fr/files/lisutugogavukani.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160874cce4c38d---jonipakipixup.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=anthropological+perspective+on+social+change
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011205.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11205 | 16792 bytes |
font_01_sfnt_off00012a1c.binc524fbfea9729ac67eca8dbdf87169b50dffc9671188c3b0ed4119831e368262 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A1C | 10700 bytes |
font_02_sfnt_off000142a9.bin3d83553148462edfeed140200041aa85fe69f0d356a736b737332120459dd438 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142A9 | 16464 bytes |
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