Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86bd7417d68b6c…

MALICIOUS

PDF

214.0 KB Created: 2021-12-22 09:05:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 17f4cd0af1cf2f622cf33cd034c1986f SHA-1: 73bce8a4ebbdf564741b778ad8856a4714908c81 SHA-256: 5d86bd7417d68b6cc4f1af0bfb8b4b2d30706208fb3162960edc8771f62cd2b9
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8552

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://archism.ru/uplcv?utm_term=sophos+central+endpoint+intercept+x+datasheet PDF link annotation
    • http://thrifty-uy.com/files/others/gipukema.pdfIn PDF document text
    • https://ildiko-szepsegszalon.hu/userfiles/file/54533189179.pdfIn PDF document text
    • https://anesaportugal.org/upload/file/90780131837.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/a5a3247312d3f5c6bb9fb96ab93628f8/91670265885.pdfIn PDF document text
    • http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/galax.pdfIn PDF document text
    • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/37501169873.pdfIn PDF document text
    • http://zezoalza.com/ckupload/files/komegapufa.pdfIn PDF document text
    • http://www.wiz-fac.com/uploadImg/file/85695529317.pdfIn PDF document text
    • https://cengilli.com/icerik_images/file/fisofodip.pdfIn PDF document text
    • https://dolaodong.com/userfiles/file/segekenigevirekivelex.pdfIn PDF document text
    • https://longislandinvestmentadvisors.com/nini/userfiles/file/27328699320.pdfIn PDF document text
    • https://sikahaiphong.com/images/news/files/8399493914.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a4358c5d238---43539657338.pdfIn PDF document text
    • http://autoscuolapezzano.it/userfiles/files/bodurarafusa.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/uo5od1jqjtnd1m4sjg5pfli6m0/19979120077.pdfIn PDF document text
    • https://studybrilliant.online/app/webroot/img/userfiles/file/borogesulikisiwuzabirik.pdfIn PDF document text
    • http://conservativista.com/js/ckfinder/userfiles/files/18772592920.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617a018397291---41491911779.pdfIn PDF document text
    • http://gibisch.com/files/files/91594230400.pdfIn PDF document text
    • http://panel2conso.com/userfiles/file/xegagenogosemajul.pdfIn PDF document text
    • https://andana.us/files/files/89066303835.pdfIn PDF document text
    • http://jcbcharpentebois.com/ressource/site-image/files/rorewawegexibofarumama.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_off0002dd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD00 24080 bytes
SHA-256: 4887f2801bc011260377c1da9c2d35e8abdb1ff33f2b0412bc1aa2333f5e3c85
font_01_sfnt_off00031977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31977 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003301b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3301B 10788 bytes
SHA-256: 34c594307cca8c236c898f28cf3e636d1c7efe6db05fcce2be7407a293770667