Malicious PDF — malware analysis report

Static analysis result for SHA-256 af272431a5c7e15b…

MALICIOUS

PDF

252.0 KB Created: 2022-02-28 11:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 8f2ed989f69656e39ad2eec562be720e SHA-1: 2abb6f4b01a5f4f43032c2392b57b7b998123e26 SHA-256: af272431a5c7e15b9f6998aacb5bd2b74498e3f4a58827d6ba68b2f4ebbec5ca
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7707

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://tevav.co.za/XSRYdR1H?utm_term=avengers+endgame+subtitles+english++subscene PDF link annotation
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd6424ccc4b---20711964369.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/13187283773.pdfIn PDF document text
    • https://www.premiumtrade.ro/ckfinder/userfiles/files/73216269369.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/delogofivugegaw.pdfIn PDF document text
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/talupodajosudemiduja.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206ec871ec9f---zuzuwes.pdfIn PDF document text
    • http://capesociety.ca/uploads/files/nenigirupumigov.pdfIn PDF document text
    • https://volnynaklad.cz/data/file/84424098015.pdfIn PDF document text
    • http://dagmare.de/userfiles/file/zosanumudemivet.pdfIn PDF document text
    • http://universityjournals.org/app/webroot/js/kcfinder/upload/files/64950830724.pdfIn PDF document text
    • http://www.cbt-trans.eu/upload/files/lidedimojazefavolesu.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f93d651f08b---17850040574.pdfIn PDF document text
    • https://4taif.com/userfiles/file/30380333551.pdfIn PDF document text
    • https://groupits.cm/uploads/fck/file/wexokoxolikamezonotuke.pdfIn PDF document text
    • http://pijntherapie.be/uploads/files/defeduvonetomewu.pdfIn PDF document text
    • http://topstec.com/d/files/sopamuf.pdfIn PDF document text
    • http://www.immat.org.tr/kcfinder/upload/files/79441963755.pdfIn PDF document text
    • https://munis-roquesalbes.cat/demo/vilalba/imatges/file/peloralu.pdfIn PDF document text
    • https://dreesmann-foto.de/userfiles/file/xagomobeximiped.pdfIn PDF document text
    • http://thietbianninh188.com/uploads/files/waxeponebule.pdfIn PDF document text
    • http://bluestandard.pl/ckfinder/userfiles/files/tufaxaro.pdfIn PDF document text
    • http://elmarahtravel.com/public/kcfinder/upload/files/fomipuwem.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/podagosinin.pdfIn PDF document text
    • https://dailyiat.com/html_upload/file/dakagegilimija.pdfIn PDF document text
    • http://nanoservice.cz/upload/file/dusaxewubuxidumijadoner.pdfIn PDF document text
    • https://ebmmontflorit.progess.com/userfiles/file/62060493880.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161faae744dd8b---tomomesobuvele.pdfIn PDF document text
    • https://wegofa.com/userfiles/file/95366145345.pdfIn PDF document text
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/21589079988.pdfIn PDF document text
    • http://www.extramas.com/userfiles/files/torovopel.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.

FilenameKindSourceSize
font_00_sfnt_off0003834c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3834C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00039a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39A6C 10984 bytes
SHA-256: 69aa02f9e3b21a6e0f96711e9424aee5e29603d241a883f5b8c90ae3c7b457df
font_02_sfnt_off0003b392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B392 17384 bytes
SHA-256: 3b86d8e9d6842065a8dbd49db9631368402a7fe6fb3bc12b924a9bdecef0748d