Malicious PDF — malware analysis report

Static analysis result for SHA-256 8475e871fda5800b…

MALICIOUS

PDF

454.4 KB Created: 2022-03-01 18:17:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 3704dd51122bde608e80f77da1870ac8 SHA-1: 76e96705d72dfcb64081b41390b8dea07d805468 SHA-256: 8475e871fda5800bc97666334c70508a73afcee89e534f296423871ebb930d30
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5095

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://aromamarketing.md/img/files/lenaki.pdf In PDF document text
    • https://casabresciani.it/uploads/file/46072649654.pdfIn PDF document text
    • http://nincity.de/inline/file/67651284861.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/fokakowimenavud.pdfIn PDF document text
    • http://elosc.com/upFile/file///ITX202202240004288505.pdfIn PDF document text
    • https://krusomying.com/data/file/wiweradetuba.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1621c34ea3416f---40434961440.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/b0ca6a887dba321f8933637ef22fc9dc/3080451344.pdfIn PDF document text
    • http://wxeina.com/userfiles/files/kebarifovewidoruxobulo.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/161f8b6492a3c8---rosetimidam.pdfIn PDF document text
    • http://cmsdoc.blum-group.de/data/cmsdoc/userfiles/file/junuwopavoguw.pdfIn PDF document text
    • https://wonkingchina.com/d/files/22050763892.pdfIn PDF document text
    • http://gomientrung.vn/uploads/image/files/17222446269.pdfIn PDF document text
    • https://conexkarvan.com/cache/fck_files/file/11192340857.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/3208871513.pdfIn PDF document text
    • http://test.currentaffairsfunda.com/assets/kcfinder/upload/files/fetumazako.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/62978418127.pdfIn PDF document text
    • http://skolicka.eu/foto/images/file/41836701693.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/30622375356.pdfIn PDF document text
    • https://businesslife.com/content/files/3841233232.pdfIn PDF document text
    • http://journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/nopipif.pdfIn PDF document text
    • https://aceold.lrsinc.co/userfiles/file/rirunexip.pdfIn PDF document text
    • http://xn--aknmedical-yub.com/uploads/file/71576432255.pdfIn PDF document text
    • https://bticino-rozetki.su/kcfinder/upload/files/zemidisugimopidonujinej.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162103e4876fd8---manow.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=agent+administratif+formationPDF 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_off0006a6b2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006a6b2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006a6b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6B2 10632 bytes
SHA-256: c596c8e001d43cc57dd061c7962c15106c4a14c912df626150c14de2fbb5ce3a
font_01_sfnt_off0006bedb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEDB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006d5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5F6 20108 bytes
SHA-256: 74f8c541b933ddab7d4cb32ac57e24332553de01befba78fcd3bd4142d55146c