Malicious PDF — malware analysis report

Static analysis result for SHA-256 425911e17c2e1fea…

MALICIOUS

PDF

206.8 KB Created: 2021-12-15 03:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 37e3bd58a721049dae78f2409fe5a5b6 SHA-1: bcacd7ad7a2ddffd971b17f115ec09d441d8f461 SHA-256: 425911e17c2e1feab19f5dc18880e21eb5baecc90e6739c0d9e5c3344e5fadbb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

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://atlastoursntravels.com/userfiles/file/padelunulawevekuxob.pdf In PDF document text
    • http://print-printonline.com/ckfinder/userfiles/files/vagowobukejonawadetefeb.pdfIn PDF document text
    • https://tspinstruments.com/cache/fck_files/file/47057037132.pdfIn PDF document text
    • http://kemmurad.com/webroot/img/files/79415586125.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/fajorezegejaful.pdfIn PDF document text
    • https://deloge-nt.fr/media/photo/file/47281288977.pdfIn PDF document text
    • http://luckdidea.com/ckfinder/images_store/files/74698473722.pdfIn PDF document text
    • http://skkl.cn/filespath/files/20211021115416.pdfIn PDF document text
    • http://year-c.com/upload_fck/file/2021-10-14/20211014210831517631.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/16097483727.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616554df5cb52---vusoninuzevut.pdfIn PDF document text
    • http://studiobardinisrl.com/userfiles/files/bosowuluxofifugaxiwoliz.pdfIn PDF document text
    • https://oz.korytnica.eu/data/files/leturezil.pdfIn PDF document text
    • https://partnermind.cz/images/files/lunit.pdfIn PDF document text
    • http://way-of-spirit.ru/upload/file/85648937171.pdfIn PDF document text
    • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/mepavot.pdfIn PDF document text
    • http://elitsatodorova.com/uploadfiles/file/29621688039.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b0043e75605---97741273324.pdfIn PDF document text
    • http://serting.eu/userfiles/files/kunipowegagobozix.pdfIn PDF document text
    • http://www.greddy.com/admin/common/ckfinder/userfiles/File/rojunosinudoduwe.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aace3881816---33751421691.pdfIn PDF document text
    • https://www.truckersplantparts.co.uk/ckfinder/userfiles/files/61118418003.pdfIn PDF document text
    • http://studiorapizza.it/userfiles/files/rodepodizegosev.pdfIn PDF document text
    • http://h-st.nl/bestanden/files/45736151614.pdfIn PDF document text
    • http://www.tomasjelinek.com/img/pub/file/nikolajifi.pdfIn PDF document text
    • https://vietnamwelder.vn/uploads/news_file/54818371869.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/4dZi1sgP-vI/uplcv?utm_term=how+to+connect+panasonic+tv+to+wifi+without+remotePDF 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 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_off0002cf49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF49 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0002e5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5E8 17288 bytes
SHA-256: 0c0f4672afd292d9b9b701a0e0ffcd51f28ad912d327b8c0570fcd515a34c6cf
font_02_sfnt_off000312d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312D0 10940 bytes
SHA-256: 215fae97ececf9a85e3d917d04bd4ec787ebc8f8f133fa87a01583d57f94eb13