Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cd11b57a892f0b6…

MALICIOUS

PDF

345.4 KB Created: 2022-03-04 10:12:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 2a97b43443a09dfd26f3600aa9cb2ba2 SHA-1: 7c2aa8b45269712f87c374edf5aae991aee12ddc SHA-256: 4cd11b57a892f0b63b986188f495390ed9633a0d0d6afb5aeb98c2c53f793af0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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 http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/vugiq21c6ktmj5dne8upg0ej33/wowamunibatipabudefira.pdf In PDF document text
    • https://chinatupai.com/web/js/ckfinder/userfiles/files/66921465445.pdfIn PDF document text
    • https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/19702176328.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/19785068636.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/86543704368.pdfIn PDF document text
    • http://gorre-paysage.fr/ckeditor/kcfinder/upload/files/bimiwafogenonasonenok.pdfIn PDF document text
    • https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/70083763110.pdfIn PDF document text
    • http://flexibordj.com/app/webroot/js/kcfinder/upload/files/28507694323.pdfIn PDF document text
    • https://www.vignolaweb.it/ckfinder/userfiles/files/82424201558.pdfIn PDF document text
    • http://dmychadla.eu/UserFiles/File/kukiv.pdfIn PDF document text
    • https://implantsdentairesdesmoulins.com/upload/editor/file/gexifefagezimax.pdfIn PDF document text
    • http://associatedreclaimed.reclaimedoils.com/userfiles/files/51058905481.pdfIn PDF document text
    • http://proclima-membranes.ru/userfiles/file/modorogetako.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/35541133486.pdfIn PDF document text
    • http://botan-koubou.com/js/kcfinder/upload/files/41529194060.pdfIn PDF document text
    • http://eternaseguros.net/files/files/zezakijavebirimoloxodani.pdfIn PDF document text
    • https://booburger.myagenda.cz/pictures/editor/files/dazapejelorugigigobivu.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/54055966875.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/f7320d828515a316e69bbe96250ff8dd/bovalolulutabijav.pdfIn PDF document text
    • https://lidiyageorgieva.com/ckfinder/userfiles/files/xatam.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/wigasulabezilanabek.pdfIn PDF document text
    • http://copy2d.com/ftp/image/file/38620805224.pdfIn PDF document text
    • https://kudamatsu.org/userfiles/file/81609154630.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/rizadesafujukodubavan.pdfIn PDF document text
    • https://najemwroclaw.com/userfiles/file/84605642484.pdfIn PDF document text
    • http://valburysekuritas.co.id/upload/files/gonij.pdfIn PDF document text
    • http://softwaretesting.kr/club/data/userfiles/file/20220304154715.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=tamil+play+video+songPDF link annotation
    • http://crosswaysrecruitment.com/userfiles/file/82880304712.pdfIn PDF document text
    • https://easyown.ddproperty.com/datas/files/88537335304.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_off0004f335.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f335.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F335 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00050a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A55 10680 bytes
SHA-256: e1539daf575286d8f4181f06dddb8b1f815268b07a44e2efce8d788e7db457d0
font_02_sfnt_off00052292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52292 19884 bytes
SHA-256: 91a62eed53a8407082b74af9b0f4a3dc5e9c17c330f17707a0146d7b7408bec9