Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bf094e33bcc4e6…

MALICIOUS

PDF

77.0 KB Created: 2021-11-02 23:46:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 4a7bde122e9cf9644d0edd71c817c48c SHA-1: 9ad37fd5997f180c5a7d63427ff77accc24db474 SHA-256: 72bf094e33bcc4e6894a971d2d1fa57a38ed715f8b39572db38c4f76bcfd0d9b
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://andreivieru.com/ckfinder/userfiles/files/gakub.pdf In PDF document text
    • https://thuaphatlaihanoi.net/uploads/files/tegejoriwagojusozik.pdfIn PDF document text
    • https://visualmotion.nl/uploads/file/sufalalevegoluzunusafamuv.pdfIn PDF document text
    • http://ageddfjtjgrade.pretty-match.com/upload/files/6897328341.pdfIn PDF document text
    • http://baharev76.ru/userfiles/file/tejawidok.pdfIn PDF document text
    • https://tidurmalam.com/contents/files/sunevamesazuzodogaluxaje.pdfIn PDF document text
    • https://unibel.pl/pliki/upload/file/xikesedugasabasibelem.pdfIn PDF document text
    • http://zdravi-kromeriz.cz/files/file/tugalularopofid.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/vb6dmr2po83hmj029hbiihjrfe/27402280636.pdfIn PDF document text
    • http://burragebrothers.org/demo/jolie/beta/userfiles/files/90383976758.pdfIn PDF document text
    • https://whereestar.com/marinarubicon/admin/file/dilusekiratu.pdfIn PDF document text
    • http://rainternacional.com/userfiles/file/fifeginonoxuremesujanafeg.pdfIn PDF document text
    • https://iskoruma.com/upload/ckfinder/files/14049945401.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161623980038ad---43932673003.pdfIn PDF document text
    • http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/guxitovosiduvuwojatovijuk.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/81778458949.pdfIn PDF document text
    • http://esejsc.com/upload/files/letokutanagitoz.pdfIn PDF document text
    • http://seoaudytor.pl/userfiles/file/josaxepow.pdfIn PDF document text
    • https://loyallcanada.com/editor_files/file/30510318564.pdfIn PDF document text
    • https://laptopserwis.com/app/webroot/media/files/tajinemoninetu.pdfIn PDF document text
    • http://tonyprins.nl/images/uploads/file/zomemilogewumunolejizi.pdfIn PDF document text
    • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/211012150134739127zw0ic6.pdfIn PDF document text
    • http://protetyka-lublin.com/images/wyswig_images/file/nunazajakegolikodima.pdfIn PDF document text
    • http://electriccityusa.com/images/fck_uploads/file/38432037622.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/EqozwcbAC44/uplcv?utm_term=st+anne%27s+christmas+mass+schedulePDF 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_off0000c76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC76D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000df7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7F 18000 bytes
SHA-256: 8eafb5f2ae3edec0d99480fb37c5953440726d80c19ef73fc6b6a6ca3b884906
font_02_sfnt_off00010dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DCC 10724 bytes
SHA-256: d0ad386a25cd0fbe823f3322e9b2d628798dea594a945a474d1919fb0707293b

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