Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d84f96438f97638…

MALICIOUS

PDF

328.4 KB Created: 2022-03-02 06:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 905c9fac1d29106a114ce4fad040b75d SHA-1: be4e91fe0f3f87469317b252c3a774ca7f38056e SHA-256: 5d84f96438f97638169f82b60097c2f8bac40257027620707f4d34decaf1a971
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7701

Heuristics 6

  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=autismo+libro+pdf+gratis PDF link annotation
    • http://prabashproperties.com/ckfinder/userfiles/files/nebakimewabupowuwojitigu.pdfIn PDF document text
    • http://mskabel.cz/UserFiles/File/tazedimudegarudirijujodet.pdfIn PDF document text
    • https://aleksandria.travelshops.pl/userfiles/file/72108762116.pdfIn PDF document text
    • https://kcharp.com/ckfinder/userfiles/files/30650876883.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/34259709809.pdfIn PDF document text
    • https://h16hr15k-h19hr37urn.com/contents/files/juribukuwoxi.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-7/20220207081700702753.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff7d8261f46---wokewulejufimafixer.pdfIn PDF document text
    • https://ferropula.hr/files/82234831907.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621b87d8bacf0---xigewosa.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620e1fbfa7e8e---1142269119.pdfIn PDF document text
    • http://daphongthuyhueminh.com/uploads/image/files/liforudukox.pdfIn PDF document text
    • https://trungtammatnamviet.vn/upload/files/71304823384.pdfIn PDF document text
    • http://foto-recepty.sk/images/fotky/paxojamifagulilizuk.pdfIn PDF document text
    • https://dverimilana.ru/media-temp/img/uploads/files/mewegekazoworiv.pdfIn PDF document text
    • http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/35578841168.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161fb7d89cf4bc---bagibomofitejemekofeta.pdfIn PDF document text
    • http://355353.ru/userfiles/file/11079475430.pdfIn PDF document text
    • https://webmanagement.markholz.ro/images/file/98924843787.pdfIn PDF document text
    • http://eurogalvano.com/admin/kcfinder/upload/files/luwusafuxodo.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621463f4b1155---26975714461.pdfIn PDF document text
    • http://lesboutiquesquercitaines.com/kcfinder/upload/files/15896558504.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_off0004ac13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC13 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004c333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C333 10824 bytes
SHA-256: ede481cc818ba7e59426aa03221d3b57138a73d69fc3c9f983fdf67df1bba868
font_02_sfnt_off0004dbbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DBBE 21396 bytes
SHA-256: f0db9c4a2af5d50fbec491b102e057d18a749313d3f841b1c7912c2eb9c33061