MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF document exhibits multiple high-risk heuristics indicating malicious intent, including lures for browser extension installation and callback phishing. The document body is heavily obfuscated, but the presence of numerous links to compromised WordPress sites and redirectors suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection further support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9828
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/tlhic5o5vmc6et1dl9njut3php/rolifisemuxe.pdf In PDF document text
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/aec639d38f3648ce80da3f5325e77b72/fewerupenogilusifila.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073221514696---kozepitefukoko.pdfIn PDF document text
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/ob6pb4l986h899mejhskf9fm50/16787462951.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/856a7af9098ffd9f0d60cc2cb7dde443/rawikosonagodorudugen.pdfIn PDF document text
- http://lumieretvie.com/userfiles/file/74951100684.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6aca61e372---sozufovoxipujeda.pdfIn PDF document text
- http://graficaeformazione.it/userfiles/file/27626470761.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16092f1ea494c2---52330982455.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/e8o9upajbj4cumq8jcmq41b3d1/jaferivepuxatuj.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/33n1mhtajk3olocq9ne067gj53/27345528012.pdfIn PDF document text
- http://xn--9w3b11kh5l.com/ckupload/files/wokovenasojiwamuvokof.pdfIn PDF document text
- https://bczenekar.hu/files/file/tejuwegarukovut.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f39db216ab---zazoximelo.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/93925313527.pdfIn PDF document text
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/53v2k6pre8lirvvjklvgeap055/tusiwapafikovo.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/4eac1e4824f8ba0ca8f826b49747d66f/78182486082.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609d99860b2f3---tofipopixumadula.pdfIn PDF document text
- http://smepil.com/ckeditor/userfiles/files/bikaxozilimux.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16083b4116aff7---83433206031.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/0c1ac706a725c72fef9912c4dc536d39/dodit.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9176f754d5---bejar.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160a885f57f3b6---38332867092.pdfIn PDF document text
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/og15ot7b61fji72uujfsuuc007/92357205432.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/e71a1f5490178306dedcd889b293ec78/83582814284.pdfIn PDF document text
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/dda8eiah40u04blahpfb25t26b/zuzugofenigolaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=cisco+duo+security+ordering+guidePDF 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_off000306d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x306D7 | 18940 bytes |
SHA-256: 8e5a1fc2f448e55b7d3664fbdf93cce7667a36d85d0b9812473c7386c98d3cf9 |
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font_01_sfnt_off000338f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x338F1 | 10580 bytes |
SHA-256: 9412e33f8f083b0337c28b2ee0496029796b4fcfbd6f68a19089a2a9e8651bb5 |
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font_02_sfnt_off00035118.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x35118 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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