Malicious PDF — malware analysis report

Static analysis result for SHA-256 87505287b6947ff2…

MALICIOUS

PDF

495.2 KB Created: 2022-01-29 02:02:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: c1aa23644780f82ebd8c3d2173558c2a SHA-1: 31b2a987387937df5095dc7e8674214b2f085c42 SHA-256: 87505287b6947ff26aa3e49632720c9fa87959609ba035c63eebbcd230953284
161 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3982

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=commando+trailer+2013 PDF link annotation
    • http://banderlogclub.ru/kcfinder/upload/files/safugogitupe.pdfIn PDF document text
    • http://minuspk.ru/minuspk.ru/userfiles/file/5792690442.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16196a1e4c3290---wojutepopinebugofo.pdfIn PDF document text
    • https://seedomoretravel.com/files/files/zenofazurito.pdfIn PDF document text
    • https://bacsionline.net/userfiles/file/73244030943.pdfIn PDF document text
    • https://www.abh.net.br/kcfinder/upload/files/guniwajejevazigo.pdfIn PDF document text
    • https://kurashi-kyoiku.com/cms/dat/upimg/file/zowugam.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618f2d02e2fa5---36166637884.pdfIn PDF document text
    • https://sbsoftware.ro/admin/userfiles/file/9907467687.pdfIn PDF document text
    • https://stomatoloska-ordinacija-rijeka.com/files/dikesupugeladereka.pdfIn PDF document text
    • http://2016.letnifestiwal.pl/ckfinder/userfiles/files/21961114274.pdfIn PDF document text
    • http://godsownproperties.com/userfiles/file/nolugugurexutosefamunixuf.pdfIn PDF document text
    • http://macro-e.com/app/webroot/userfiles/files/74871337272.pdfIn PDF document text
    • https://firstview.christoff-design.com/files/54144940294.pdfIn PDF document text
    • https://ubranni.com/uploader/files/xatatetakosi.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/93907712313.pdfIn PDF document text
    • https://geloracinta.com/contents/files/lavitasapowojano.pdfIn PDF document text
    • http://espwireless.net/uploads/file/49164918544.pdfIn PDF document text
    • http://gr-chem.com/upload/files/vazobabez.pdfIn PDF document text
    • http://fueandhair.com/userfiles/files/nirifexopowewejo.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/44776366944.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613295cfe14d3---70685165775.pdfIn PDF document text
    • https://avistravel.activsport.ro/userfiles/file/17663427096.pdfIn PDF document text
    • http://aristosaigonhotel.com/uploads/files/kuziriw.pdfIn PDF document text
    • http://www.bauernmusikkapelle-stjohann.at/CMS/ckeditor/kcfinder/upload/files/78197920559.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161aaca0e361ed---46186984510.pdfIn PDF document text
    • http://ues-rb.ru/themes/ues-rb.ru/files/90549828566.pdfIn PDF document text
    • http://rockefellersgold.hu/editor_up/xadimuxasewibirubi.pdfIn PDF document text
    • http://shipsupply.ru/userfiles/files/wakiderubazojidukofizizus.pdfIn PDF document text
    • http://chaitraglaze.com/uploads/96360637356.pdfIn PDF document text
    • http://nomayaku.com/userfiles/file/birixawidovijadu.pdfIn PDF document text
    • http://pitin-akutsu.com/js/upload/files/mipijikaneg.pdfIn PDF document text
    • http://www.anpecv.es/gestor/ckeditor/kcfinder/images/files/870339241.pdfIn PDF document text
    • http://duplisite.com/userfiles/file/vufanitokun.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/082147318706.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161a43e4debcf2---78434742645.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/4a04a9269d514327dd6b046239009411/59440418277.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 extracted file (font_00_sfnt_off00075033.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00075033.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00075033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75033 10736 bytes
SHA-256: abe50f1bc9a4a3462bbd34524c1182f093a7128ce6ff6fc8f3e8c26bcb4bc6a1
font_01_sfnt_off000768f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768F1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00077f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F92 17280 bytes
SHA-256: 8a058b40d17aeed0d45ac2975ba5bdd30cc7fb3c588c5ba0ebf198ef58c70748