MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple URLs pointing to compromised WordPress sites, which in turn host other PDF files. This suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/f0b4c093f438b89dfc8bc4cffcffefd2/fozafivovi.pdf
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/16086e02bed44a---lowosumeridedikev.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a592f32826f---xokijesupekevamifo.pdf
- http://angelcabrera.com/FCKfiles/file/60383176774.pdf
- http://nexxosrealty.com/userfiles/files/timapam.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a409326c1d9---kamemaxoxegakub.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607967a2a005c---dulab.pdf
- http://antiochhighclassof70.com/clients/4/4a/4a4d67c83f6236388cbe8d22d68d4f91/File/sezusojetusevipapipij.pdf
- http://xn--aknmedikal-yub.com/uploads/file/kewasinijinipodidoxuz.pdf
- http://kolesnikov.pro/ckfinder/userfiles/files/zarorek.pdf
- https://abe-rdc.com/userfiles/file/sazabelodapenilepa.pdf
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/jojri5lpj949hevd1pjstlqv8m/5948435168.pdf
- http://jestbogiem.pl/app/webroot/uploads/file/kisivupul.pdf
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/09f793292e7053f5bf81d1a81784df46/96084397696.pdf
- https://doanhnghiepvietnam.org/img_duhoc/files/sexugapi.pdf
- https://bayihoki99.com/contents//files/dujaxepajikotar.pdf
- https://daaeportrett.no/upload/file/lulexejudotewoxawaribuzap.pdf
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160846d40dc47a---temojevifelaloditufuwav.pdf
- http://stauarchitetti.eu/userfiles/files/bowuririj.pdf
- http://maasmartcity.com/userfiles/file/dabenumomev.pdf
- https://apskarota.org/userfiles/file/89846503467.pdf
- https://247hvac.ca/fabulous1/uploads/files/gefitokujalenojivo.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/5559b501141efce8a4b5e324794b7d90/48598713666.pdf
- http://serextion2006.com/js/upload/files/15939950897.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=chemical+reaction+engineering+third+edition+solution
- 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_off0000caf9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAF9 | 16792 bytes |
font_01_sfnt_off0000e30b.binb5a26e8f0ce11777e61873d0a6d2d1a0b34118c3e688ed434a28ac842d287e38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE30B | 20832 bytes |
font_02_sfnt_off00011b0d.bin63f7cfa42af8885f8844b95525d1bfd9f7ff814a779a32722be9fa94284344e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B0D | 10948 bytes |
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