Malicious PDF — malware analysis report

Static analysis result for SHA-256 191be5788add5002…

MALICIOUS

PDF

304.6 KB Created: 2022-02-07 00:48:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: df91cc920c84fedb028eab17750a5913 SHA-1: 54b8e3a16c459cdf2f7d9df62a99cedb6c1118ba SHA-256: 191be5788add500274d3f2738061669e904acccf04f19717be431b51ac8cf497
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

Heuristics 5

  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=watermark+in+excel+spreadsheet PDF link annotation
    • http://asclyziarskyklub.sk/userfiles/file/81391117782.pdfIn PDF document text
    • https://andhimazhai.com/images/files/21238893261.pdfIn PDF document text
    • http://rostocker-taxi.de/resources/files/tabej.pdfIn PDF document text
    • https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/moguvi.pdfIn PDF document text
    • http://www.propper-droppers.nl/files/file/25715578969.pdfIn PDF document text
    • http://etasystem.net/userfiles/files/57075112578.pdfIn PDF document text
    • http://denizyemek.com/images/fck_upload/file/muvafonavudifulaguvu.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153f9d094c92---29623341694.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/5cbab3ed5cd2cd4faedca7111a2e01c1/woxasoso.pdfIn PDF document text
    • http://eiak.org/upload/editor/files/pigisekolejo.pdfIn PDF document text
    • http://hanstime.com/userData/board/file/40061199989.pdfIn PDF document text
    • http://vienkiemis.lt/app/webroot/uploads/userfiles/files/verujowopaxu.pdfIn PDF document text
    • http://khacvietlaser.vn/public/images_news/files/83687686180.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/musagojururum.pdfIn PDF document text
    • http://palyavalaszto.hu/teszt/upload/file/78043598843.pdfIn PDF document text
    • http://minhphucvietnam.com/uploads/userfiles/file/mogexujoforewewili.pdfIn PDF document text
    • http://quick-thailand.com/images/uploads/file/wojobanij.pdfIn PDF document text
    • https://pianotuningdarwin.com/userfiles/files/rejulojupafivanaw.pdfIn PDF document text
    • http://ruresept.ru/files/file/madepanovuzimajifawajuw.pdfIn PDF document text
    • http://clinicaveterinariamontecchia.com/userfiles/files/14290071092.pdfIn PDF document text
    • http://sage-chem.com/image/files/20211213_073019.pdfIn PDF document text
    • http://poexali.org/static/image/_u/system/files/33696032214.pdfIn PDF document text
    • https://giga-tronics.com/userfiles/files/66079905740.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/76542450104.pdfIn PDF document text
    • http://formpart.com/upload/ckfinder/files/rafujovikosozisodobe.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_off00045265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45265 10848 bytes
SHA-256: 35751d5280dcd0db8b1f2b2852bab527351f0ea4701bfbd729865c7f47864381
font_01_sfnt_off00046b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B3C 19204 bytes
SHA-256: f00ee096a2360541591967577599d2eecfacd17daf4a9ad2da5700d652c92fda
font_02_sfnt_off00049c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49C4B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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