Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2adad31b084a1a…

MALICIOUS

PDF

320.0 KB Created: 2022-01-06 10:14:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4e7a2d9f9e3ae438256b9746fef35dd8 SHA-1: 4c8a2ec1b98f4340c78473bf4371fc1d5e5f7c96 SHA-256: af2adad31b084a1a985846438c0144b6437623f3472f0d065c397c391c84d03e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7819

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://lovelyspa.net/ckfinder/userfiles/files/zilutetewevu.pdf In PDF document text
    • http://geofer.eu/userfiles/files/votabexifixigamerenisetol.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161af7ce2220fd---81829356642.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/648ca5848db99e4e59983a71cfaf6651/25908844452.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/c6f522ce207bca146c0bbc36d82e2aa1/93095796149.pdfIn PDF document text
    • http://kytero.com/admin/kcfinder/upload/files/bixelavoverekape.pdfIn PDF document text
    • https://dienmayngalinh.com/img/files/jawazufitoxuvapubi.pdfIn PDF document text
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/948e16f7deb7895f641047807c187fab/77110239186.pdfIn PDF document text
    • http://mediedil.eu/userfiles/files/34996815387.pdfIn PDF document text
    • http://abbeytraining.net/userfiles/file/10994060931.pdfIn PDF document text
    • http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kurefuvabobir.pdfIn PDF document text
    • http://gsglamping.com/userfiles/file/20211228165544.pdfIn PDF document text
    • https://wupaojichangjia.com/d/files/84871373231.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/59410207328.pdfIn PDF document text
    • https://boucherienabli.com/uploads/FCK_files/file/jagifetatefabegatalov.pdfIn PDF document text
    • http://rnralpha.cz/res/file/buloteniwefigewejid.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/61e400b2c27dbdb40c8ea0dbae72da59/80412579547.pdfIn PDF document text
    • http://gainliving.com/upload/editor/file/baliwosakuvizufofitipupif.pdfIn PDF document text
    • http://aock.kz/app/webroot/js/kcfinder/upload/files/2181822049.pdfIn PDF document text
    • http://smartmoverecords.com/india/images/file/fuzuvobijevidazetigawir.pdfIn PDF document text
    • http://personaleducador.com.br/ckeditor/kcfinder/upload/files/wibobozefigetagivose.pdfIn PDF document text
    • http://buyyoutubesubscribers.com/ci/userfiles/files/91867091180.pdfIn PDF document text
    • https://zpfeni.gov.bd/public/files/assets/ckeditor/kcfinder/upload/files/mufarowasisezajenulikoje.pdfIn PDF document text
    • https://wodepcb.cn/uploadfiles/files/6525406733.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RhDyTiV0TgQ/uplcv?utm_term=chuchumaa+video++dj+mwangaPDF 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_off0004952c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4952C 17288 bytes
SHA-256: 6dd46cb58c0338a44ce37c1076b084b4b96e16456df5142e2e686af7e3993521
font_01_sfnt_off0004c1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C1FD 10816 bytes
SHA-256: 30041b5a43558494dc6cad1dcaf61ab48135295c1640ab5c79863364b0a5ef83
font_02_sfnt_off0004da8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA8A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336