Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af68735e9154e18…

MALICIOUS

PDF

337.2 KB Created: 2022-04-11 06:55:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: eb261d7bc7e475cc99c6f3b228c7e27c SHA-1: d784f3d1f3f024ca6a6c8f7cdbcf3994210b8f0d SHA-256: 4af68735e9154e18039e72f62068dabc7db47566c20567a4c9915c381811efa5
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=evanukku+engeyo+matcham+irukku+full PDF link annotation
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/162460fa957dc3---mojobexufot.pdfIn PDF document text
    • https://rhodium.vn/uploads/news_file/xugusozupotowubep.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/91335216487.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/3214862849.pdfIn PDF document text
    • http://teenmag.cz/userfiles/file/54808408746.pdfIn PDF document text
    • http://swiatwedkarza.pl/pliki/files/sebelobebokelesi.pdfIn PDF document text
    • http://www.cemeba.com/uploads/ckfinder/files/jodukibobadezimaruruvenen.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/sisi6o6c8qd3tmpa1sgiie9n88/novowamedaziboxeremak.pdfIn PDF document text
    • http://morard-mcf.fr/data/Files/29802349398.pdfIn PDF document text
    • https://daotao.cungthieunhidanang.vn/app/webroot/upload/files/92964709214.pdfIn PDF document text
    • http://schunk-app.com/js/kcfinder/upload/files/nuwikovexufadodigo.pdfIn PDF document text
    • https://webmanagement.exing.ro/images/file/wawabidit.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/xokopegizoxam.pdfIn PDF document text
    • http://levant-tekstil.com/other_files/File/3283797507.pdfIn PDF document text
    • http://czminghe.com/upload/files/soguxagijozezivuziso.pdfIn PDF document text
    • https://www.massola.com/assets/themes/sbadmin2/ckeditor/kcfinder/upload/files/73408420211.pdfIn PDF document text
    • http://kolter.es/uploads/files/pokorexazukalokejoloti.pdfIn PDF document text
    • https://braus.uz/images/shared/file/bujufivi.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/durevorojofuxetulig.pdfIn PDF document text
    • http://halanmilk.com/upload/files/65718668670.pdfIn PDF document text
    • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/27327640376.pdfIn PDF document text
    • http://rana-international.com/userfiles/files/tonumavujabotelorigimewe.pdfIn PDF document text
    • https://soudureornementalelauziere.com/upload/editor/file/16249410089.pdfIn PDF document text
    • http://medical-1669.com/userfiles/files/68814644205.pdfIn PDF document text
    • http://sanxuatbanthinghiem.org/app/webroot/uploads/files/45889796316.pdfIn PDF document text
    • https://www.fuji-chem.co.jp/admin/js/kcfinder/upload/files/wulibijofutowovixo.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_off0004d57c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D57C 17908 bytes
SHA-256: 86d41dceb31b3882fc4743ba61880689009b4a1d7d71f2704a5198ddf36221a4
font_01_sfnt_off0005047e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5047E 10972 bytes
SHA-256: a139e5a69e86543dbda6f91e20998ee05951fc614b8e88e21b063c1bb397b805
font_02_sfnt_off00051dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51DC4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1