Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed31ce6e5760c1f0…

MALICIOUS

PDF

311.0 KB Created: 2022-02-12 16:16:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: e84c3183f85532e6f6bdf12be1437e4a SHA-1: 5909f8c6e45c4196584f92853b23e4535e366f48 SHA-256: ed31ce6e5760c1f056daf8d481d69e9b0de9b2e49f1ebc2a83838a272bd746bc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

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://propiedades.net/ckfinder/userfiles/files/jevexugamigevedotibedager.pdf In PDF document text
    • https://administrador.bannik.com/benkio/files/74129534919.pdfIn PDF document text
    • https://alfamar.travelshops.pl/userfiles/file/67124895262.pdfIn PDF document text
    • https://www.libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/16809088421.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16165704b8e1d5---1135004653.pdfIn PDF document text
    • https://nirkongrp.com/ckfinder/userfiles/files/43886590640.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/36ba08c6c4e9e73516781b2e28878219/18994112165.pdfIn PDF document text
    • https://roshnaai.com/ckfinder/userfiles/files/tawikebukepa.pdfIn PDF document text
    • https://pensiuneavalentina.ro/app/webroot/file/95612313033.pdfIn PDF document text
    • http://busangh.com/attfile/fckimg/file///2021111305457_878563685.pdfIn PDF document text
    • http://antracit.topmebli.com/content/xuploadimages/file/88115800292.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/3917dd9904d760eeaf55edee3073c63c/79295775763.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/23632149748.pdfIn PDF document text
    • http://tahyuh.com/uploads//files/202108101519036918.pdfIn PDF document text
    • https://avigail.pekelman.com/sites/default/files/file/dozuwujonifat.pdfIn PDF document text
    • http://alkord.kz/app/webroot/js/kcfinder/upload/files/wefimoxamutumojab.pdfIn PDF document text
    • http://vladekoservis.ru/files/28821813620.pdfIn PDF document text
    • http://lphs-the60s.com/clients/5/5a/5a84a5cabe7f31a06b4bf99f7e1b7ad6/File/60509865554.pdfIn PDF document text
    • http://cerescommoditiesltd.com/Images_upload/files/16026132186.pdfIn PDF document text
    • http://logtech.cz/foto/Image/file/64729049750.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/9062307078.pdfIn PDF document text
    • http://whkmradio.com/userfiles/file/tugojagigijukeju.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/161648df9c3684---42298202945.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/xelufugoxomotemiki.pdfIn PDF document text
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161ff7098df86c---31069188872.pdfIn PDF document text
    • http://kursadowicz.pl/Upload/file/nibabenafejimota.pdfIn PDF document text
    • https://kisikana.hr/UserFiles/files/43097733974.pdfIn PDF document text
    • http://mawarids.org/mpfiles/file/fikafizezixorekotiraku.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615eaaac9fee1---nirevejuwogepazatafuj.pdfIn PDF document text
    • http://playonathletics.com/userfiles/file/34106701810.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=foxboro+reporter+subscriptionPDF 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 extracted file (font_00_sfnt_off00046974.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00046974.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46974 10476 bytes
SHA-256: ba0f3fc6a37154256825565d2a0f07b027d3fefeb365937741c67d69c797f9b4
font_01_sfnt_off00048135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48135 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00049850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49850 20156 bytes
SHA-256: 69f551c04dfa968870b4ea976e3dc331d4de3929e8790ec2c0b8f976d260715a