Malicious PDF — malware analysis report

Static analysis result for SHA-256 4259269a750fb468…

MALICIOUS

PDF

403.8 KB Created: 2022-03-16 17:01:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: b1561e9b892dab857d06ce9715cb2f70 SHA-1: 93d311ff38a08e8ab567802144a7b2de9a56236d SHA-256: 4259269a750fb4686cbc87e6b9525a0a14413f1a32e321b4c299775634b9cdbe
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://yubit.co.za/XSRYdR1H?utm_term=aqa+chemistry+revision+guide+online PDF link annotation
    • https://beylikduzutabelaci.com/userfiles/file/joxepemegem.pdfIn PDF document text
    • https://snowcat.pl/admin/ckfinder/userfiles/files/kelewenusavofalerigakeza.pdfIn PDF document text
    • http://odontotecnicacoop.it/userfiles/file/55591570704.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/49374117836.pdfIn PDF document text
    • http://avgustal.ru/kcfinder/upload/files/zakuxizas.pdfIn PDF document text
    • https://sagarexpress.com/userfiles/file/fiwarudepuxoduziji.pdfIn PDF document text
    • http://tomboy2.com/images/library/File/89340056395.pdfIn PDF document text
    • http://poliman.srv.br/assets/kcfinder/upload/files/mafivegimawuxanara.pdfIn PDF document text
    • http://eurogalvano.com/admin/kcfinder/upload/files/86612237606.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/jurinaj.pdfIn PDF document text
    • https://rosanaalvarracin.com/userfiles/file/49696884302.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/xorosemowezox.pdfIn PDF document text
    • http://wittymall.com/multimedia/userfiles/file/15759709066.pdfIn PDF document text
    • https://aspart.ro/ckfinder/userfiles/files/dosivaxa.pdfIn PDF document text
    • http://ipai-bg.eu/img/file/gekulududakabege.pdfIn PDF document text
    • https://gtpoznan.pl/cms/files/file/97149098695.pdfIn PDF document text
    • http://osteriadelcampanile.com/userfiles/files/maraxusunufevenepuzenifo.pdfIn PDF document text
    • http://quaisetoiles.fr/img_pages/file/sepokimilepuzofitonu.pdfIn PDF document text
    • https://mgrenginiai.lt/ckfinder/userfiles/files/vawezavexizulu.pdfIn PDF document text
    • http://sdes.in/uploads/muzuwefigaj.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/xolenapirurisewelutorila.pdfIn PDF document text
    • http://6461737.ru/upload/files/82621551879_1646664382.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/wiwimoderipuxiz.pdfIn PDF document text
    • http://ediliziaunoaventi.com/userfiles/files/2967933405.pdfIn PDF document text
    • https://allianztc.ro/files/file/95255114024.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_off0005df31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF31 11224 bytes
SHA-256: 1285e309b40f2761d09b0f6c66dfda84e31921bef2e3159549e1707ed8103792
font_01_sfnt_off0005f8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8D9 18268 bytes
SHA-256: 9106fd71538f95b9360f450dca18b880862162de09f7501701883d9655d13cf4
font_02_sfnt_off000628db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628DB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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