Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7b955e609353f3…

MALICIOUS

PDF

483.2 KB Created: 2022-03-15 21:57:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 10d17bee8eef8745dc94ae0789e85290 SHA-1: 1bc26e8a9b9780d8d59c1a65d7f1cc83df72e2ee SHA-256: cd7b955e609353f338197713384fdc0e846e4d19d9a1c52402326a43db9f6e2a
114 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4405

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
  • 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://colod.co.za/XSRYdR1H?utm_term=autosys+interview+questions+pdf PDF link annotation
    • http://slbreakingnews.com/ckfinder/userfiles/files/nematamulesukamerepufupus.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/nobije.pdfIn PDF document text
    • http://wittsend.com/userfiles/file/rupopotuzunanodi.pdfIn PDF document text
    • https://horecathanglong.com/uploads/file/12343799013.pdfIn PDF document text
    • https://bharatiyabhashaparishad.org/ckfinder/userfiles/files/metolivid.pdfIn PDF document text
    • https://aquarell.ro/userfiles/file/53842577551.pdfIn PDF document text
    • http://yuha.be/_files/file/kuvusera.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/lubonav.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/98317557916.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/podetazamonuziwo.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/574905af303fe1fd08422e5671e8e75f/pesanafedukezojobagoz.pdfIn PDF document text
    • http://ximangsongthao.com/app/webroot/uploads/files/vuworebiviwotiginoxulel.pdfIn PDF document text
    • http://sieuthihatgiong.vn/webroot/img/files/danodutosifalapijupusipa.pdfIn PDF document text
    • https://agrocare.hu/ckfinder/userfiles/files/81433589535.pdfIn PDF document text
    • http://www.dean-cpa.com/files/adminpic/file/faganifofivanovovokuret.pdfIn PDF document text
    • http://noithathoaphat11.com/upload/files/27690394640.pdfIn PDF document text
    • https://mamalight.net/business_school/uploads/file/11606242276.pdfIn PDF document text
    • http://brillodesol.com.ar/app/webroot/js/kcfinder/upload/files/15679901041.pdfIn PDF document text
    • http://kdbelektrotechniek.nl/uploads/file/16866552146.pdfIn PDF document text
    • http://postelezmasivu-brno.com/ckfinder/userfiles/files/vonaxeme.pdfIn PDF document text
    • http://cieplej.pl/imgturysta/file/63620975374.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/162161f63eb072---vodabupajunezasudux.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/dutodisowuzasomutom.pdfIn PDF document text
    • https://antonyfashion.sk/_upload/files/50202077077.pdfIn PDF document text
    • https://goodluckfishing.com/ckfinder/userfiles/files/49281353863.pdfIn PDF document text
    • http://chistogood.ru/admin/ckfinder/userfiles/files/kipira.pdfIn PDF document text
    • http://bishalfurniture.com/assets/kcfinder/upload/files/14644157646.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_off00071b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B98 10776 bytes
SHA-256: af4aae86c028e438c6fcf4a52c39231aadf8d7eae95c560cba2faff6e45f7549
font_01_sfnt_off00073470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73470 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00074b8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B8B 19000 bytes
SHA-256: 69afd5d2fd4d64b13691fe6c5932cf91e5aa5a8c0507ec4e17863879a34e8c30

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