Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61c56e3a07e42fa…

MALICIOUS

PDF

656.8 KB Created: 2022-03-10 03:56:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 4b2f5aadb6bfd06603a03f6118ed16e9 SHA-1: 40ec96cec38424531952c5d1897849d8d8186004 SHA-256: b61c56e3a07e42fa49ae2767f93b5506e8d0b2066366ae967d84ad073c4c3e89
106 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1716

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://karthikaspices.com/uploads/file/pufuvetezejakesovuri.pdf In PDF document text
    • https://ubk-sad.de/azubi/userfiles/files/wejunidadilotudeluf.pdfIn PDF document text
    • http://conepe.org.br/public/ckeditor/kcfinder/upload/files/4538044642.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/74082364184.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/7519303428.pdfIn PDF document text
    • https://webmanagement.exing.ro/images/file/86631568635.pdfIn PDF document text
    • http://xavitec.com/cliente/conteudos/files/24663449816.pdfIn PDF document text
    • https://ww150006.linebot.net/upfile/files/20220208125322.pdfIn PDF document text
    • http://studiotecniconuti.it/userfiles/files/57729746538.pdfIn PDF document text
    • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/27726323459.pdfIn PDF document text
    • http://dep14kirov.ru/userfiles/file/mavoxunedofidomof.pdfIn PDF document text
    • https://foundationkuzmanov.com/files/duromixo.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16226b61fc2f7c---28360158137.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/55853499596.pdfIn PDF document text
    • http://mobilahomedesign.com/userfiles/files/xapojoserizifiba.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/napigisemowabajabovutavit.pdfIn PDF document text
    • http://sb-78.ru/files/file/paxivu.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/9c1712c68f38c00db491d69b921ed9dc/paxevogevo.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/52158600166.pdfIn PDF document text
    • http://giayviettri.com/img-ftec/files/vopasazabebojibugas.pdfIn PDF document text
    • http://blackhorsesc.pl/userfiles/file/xekulamefebof.pdfIn PDF document text
    • http://hairfibers24.com/upload/file/xusijaxumaromonana.pdfIn PDF document text
    • http://stinpo.com/ckfinder/userfiles/files/migafuvinupibajog.pdfIn PDF document text
    • http://seksdagen.nl/userfiles/file/44793276755.pdfIn PDF document text
    • http://touristclub.in/userfiles/file/resutipifa.pdfIn PDF document text
    • http://radtel-sport.pl/userfiles/file/fojodorus.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=english+idioms+in+use+answersPDF link annotation
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/38575197411.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_off0009d726.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0009d726.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0009d726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D726 17288 bytes
SHA-256: 6fa199afa84c2db90d9b353fb4e7cd2b620b32f63c6bbf86a09cf915f364ce69
font_01_sfnt_off000a040a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA040A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000a1b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B2A 10764 bytes
SHA-256: d3c4fa1fe2346400a8745ebdacf7c4fc6d367c66d344897b8c885cbf086a2615