Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b499a2df4fd0d5…

MALICIOUS

PDF

239.8 KB Created: 2022-03-17 01:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: cb87c0d84c49c8e3a8e129e3512d22da SHA-1: fda2a64ada104c9240f94fdae9438f053160cc88 SHA-256: 72b499a2df4fd0d5354f804782a3c47f4255d8109e94f0d402744ff00ecc703d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9726

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://wirut.co.za/XSRYdR1H?utm_term=2004+lincoln+aviator+owner%27+s+manual+pdf PDF link annotation
    • http://dubiliergarten.de/uploads/files/lexilurufibalisosut.pdfIn PDF document text
    • http://mosjob.ru/images/file/tinugorefolezax.pdfIn PDF document text
    • https://triangle-electronics.com/assets/userfiles/file/41446781615.pdfIn PDF document text
    • https://planbmedia.hu/files/fezupelepibonu.pdfIn PDF document text
    • http://www.guard.ee/kcfinder/upload/files/75576612877.pdfIn PDF document text
    • http://parafiasadkowice.pl/pliki/8278171319.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/welenizagiduxozur.pdfIn PDF document text
    • http://marinda.ru/pics/images/file/52412385961.pdfIn PDF document text
    • https://laborator.hyron.ro/mm/file/puxoxexavalozotok.pdfIn PDF document text
    • http://ksklinika.ru/ckfinder/userfiles/files/73870076207.pdfIn PDF document text
    • http://ailin.kz/js/kcfinder/upload/files/89909387360.pdfIn PDF document text
    • https://ijtm.in/userfiles/file/61831436408.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/ce17c5dbae1802d78c3f4b151281f05f/52860208094.pdfIn PDF document text
    • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/fijafu.pdfIn PDF document text
    • http://konemara.hu/userfiles/file/88005185302.pdfIn PDF document text
    • http://nomayaku.com/userfiles/file/57052650832.pdfIn PDF document text
    • https://dogathermalhotel.com/resimler/files/9317454895.pdfIn PDF document text
    • https://nnt52.ru/userfiles/file/feduzukajuzumug.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_off00035083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35083 11288 bytes
SHA-256: 54f5324bb55ddb4482e11ddea900c818d73be7c8a6d879e034c98f0172a66e2c
font_01_sfnt_off00036b2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B2B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00038246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38246 18084 bytes
SHA-256: b547b25efc0181eb27aeaf880e4a93cdd8074d01c226edaefab12c5e0560d2df