Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af4935a097dab20…

MALICIOUS

PDF

216.7 KB Created: 2022-03-19 04:21:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: d9483a9b0fff6d15363a04bd0e4a1d2a SHA-1: c2b9b9f23bb13d132bd44038766af21e34581514 SHA-256: 4af4935a097dab2044824715f7c3ae940f7c0972f577b991195f6499b90ce707
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8201

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 https://tevav.co.za/XSRYdR1H?utm_term=translate+canvas+reportlab PDF link annotation
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/tesigenijivakedanisuje.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/41285204130.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16211208e80efc---vufil.pdfIn PDF document text
    • https://egf.tw/test2/images/file/27660875874.pdfIn PDF document text
    • https://minhjazzvietnam.com/kcfinder/upload/files/pogidapupi.pdfIn PDF document text
    • http://clerus.hu/files/file/resutegovulozam.pdfIn PDF document text
    • http://tantrungnghia.vn/media/ftp/file/sevumexutodupalufafajap.pdfIn PDF document text
    • http://gesgo.de/userfiles/file/kedutidinigejeziki.pdfIn PDF document text
    • http://www.arborvitae.cz/ckfinder/userfiles/files/pategufododasojokojo.pdfIn PDF document text
    • http://studiolegalezullo.eu/userfiles/files/33448292479.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620480b1ad091---ribawizowuw.pdfIn PDF document text
    • https://urbanlivin.lu/userfiles/files/xowepi.pdfIn PDF document text
    • http://advocaciaciervo.com/kcfinder/upload/files/runepojatoraf.pdfIn PDF document text
    • https://www.gullyracing.it/admin/ckfinder/userfiles/files/xonelokonufitob.pdfIn PDF document text
    • https://gifarlcm.com/upfiles/editor/files/kejujiruxaxexutodo.pdfIn PDF document text
    • http://etiquettes-adhesives-bobine.fr/kcfinder/upload/files/xebegona.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/54304742343.pdfIn PDF document text
    • http://ndemal.com/publish/page/file/wibuxenobexi.pdfIn PDF document text
    • http://patronusalapitvany.hu/public_html/upload/bunino.pdfIn PDF document text
    • https://saunadlaciebie.pl/userfiles/file/73011016342.pdfIn PDF document text
    • https://maturana.cl/upload/file/75133470616.pdfIn PDF document text
    • http://primewritings.grand-essays.com/media/uploads/files/ronunikotatiku.pdfIn PDF document text
    • http://pactolous.hu/upload/file/69015602141.pdfIn PDF document text
    • http://opuspointpartner.com/ckfinder/userfiles/files/99678667797.pdfIn PDF document text
    • http://universalgroupautos.com/files/others/655265917.pdfIn PDF document text
    • http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/lukamilevesosid.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621a4f4ed1f31---6965000377.pdfIn PDF document text
    • http://tesorosdelayer.es/imgs/images/files/59860062218.pdfIn PDF document text
    • http://rezervacie.ambio.sk/user_files/files/83634857716.pdfIn PDF document text
    • http://nelly-design.ru/upload/files/niwixonedakuponelatamo.pdfIn PDF document text
    • https://oncallanatomist.org/ckfinder/userfiles/files/gifikixitofisoguvodi.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16220326da1bef---kixiwipofavoroxol.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_off0002f100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F100 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003081b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3081B 19488 bytes
SHA-256: 0738603346174ca46a2b44a12f364873d93c765e3404e4693f393c7f8bd0769c
font_02_sfnt_off00033bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33BB0 10444 bytes
SHA-256: 13e18e92da2c7d7288b159bb6a2df2f85f20ed2c72212fcd2b66ff6fc3e5bc25