Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3b5bccf1964784…

MALICIOUS

PDF

358.2 KB Created: 2022-03-25 05:25:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: a539f37f0d1b935693f28b60494b36da SHA-1: 82cd06ec180719bce7c3a398bc397e8877de54f8 SHA-256: 0d3b5bccf196478414a54e14d7e2d7059c2480712b52eaba4f79417712a82968
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7478

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.
  • 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.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=conceptos+basicos+de+finanzas+pdf PDF link annotation
    • https://www.hotelashray.in/kcfinder/upload/files/42933429353.pdfIn PDF document text
    • http://tothimi.com/admin/kcfinder/upload/files/gadubifulaperejubobegin.pdfIn PDF document text
    • http://allgeology.ru/ckfinder/userfiles/files/79588363124.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/qgpk8fjevd17igbse3infoh0u7/91856835931.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/sijinabuj.pdfIn PDF document text
    • http://mbeautyconcept.com/upload/content_images/file/69614480354.pdfIn PDF document text
    • http://davostravel.com/upload/files/85586193715.pdfIn PDF document text
    • http://brackenpaving.com/files/48162385648.pdfIn PDF document text
    • http://alacarte-grafik.de/userfiles/file/28594046813.pdfIn PDF document text
    • http://micruts.org/userfiles/file/19920208798.pdfIn PDF document text
    • http://fabiocaronearchitetto.com/userfiles/files/wagugokure.pdfIn PDF document text
    • http://www.bestofasco.cz/upload/files/misarugodolubenisutaku.pdfIn PDF document text
    • http://progettocecinacuore.it/writable/public/userfiles/file/pufowogafasekamefu.pdfIn PDF document text
    • http://www.egymast-segito.hu/uploaded/fck/file/77130367327.pdfIn PDF document text
    • https://mallorcaboom.com/res/wysiwyg/file/55986410808.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/nufadoxawoneze.pdfIn PDF document text
    • http://panelko.hu/files/files/zatenelasuzamamafi.pdfIn PDF document text
    • https://mlmrockstars.com/ckfinder/userfiles/files/lizeniwixewowefasexar.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621611d3bf059---38459902943.pdfIn PDF document text
    • https://aquarell.ro/userfiles/file/26559970517.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f8be4a2d573---1096205869.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620333ac60d47---45483042066.pdfIn PDF document text
    • http://biometria.pl/photos_fck/file/titibikimedovebegumuwuwel.pdfIn PDF document text
    • http://laskod.hu/userfiles/file/dafumano.pdfIn PDF document text
    • http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20220209095422.pdfIn PDF document text
    • http://tnet.site/kcfinder/upload/files/82267305616.pdfIn PDF document text
    • http://tungalag.mn/userfiles/files/95229245863.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/90227209073.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_off000524b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524B1 10700 bytes
SHA-256: 5e77caaa62200c6d788ae92b74e6751eb83d2435da64666571622f7cf13cc764
font_01_sfnt_off00053d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D3E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00055459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55459 20608 bytes
SHA-256: 6820c8e189938a6880c1dc87da65b44a0954538c1e2342693988ad45c3193ab5