Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73ba6aff0b51d1…

MALICIOUS

PDF

381.9 KB Created: 2022-03-23 17:54:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 21b7bd683101bea42afd40f6dad98dd8 SHA-1: 7ef7057de501f620ca45ae916aa5ddf024ec51a1 SHA-256: cd73ba6aff0b51d1735390fac82c5520f3051c589490bbcf6f9889481ae19448
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6428

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=ppg+funko+pop+price+guide PDF link annotation
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/tupetelepefenawegusaw.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20220228030235_1zkr2k.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/sibapujefozatoxaw.pdfIn PDF document text
    • http://phukiendoxe.com/media/ftp/file/57366887592.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/semutunopepiveja.pdfIn PDF document text
    • http://ww2.forte.com.pl/js/ckeditor/kcfinder/uploads/files/61911563372.pdfIn PDF document text
    • https://mayorista.cristobalcolon.com/userfiles/file/80370363173.pdfIn PDF document text
    • https://agros.net/uploads/file/jemakipilukuvaporofeni.pdfIn PDF document text
    • https://www.montferri.com/admin/js/plugins/kcfinder/upload/files/pilerugisuladufijuleva.pdfIn PDF document text
    • http://pataibicaj.hu/userfiles/file/fikafalewumajonelo.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fc5526695db---47376448606.pdfIn PDF document text
    • http://cheniou.handysociality.com/upload/files/78779022625.pdfIn PDF document text
    • http://immodraft.nrw/images/architekten_agentur_images_/file/jageduvepozasi.pdfIn PDF document text
    • http://beautybybelief.com/admin/images/file/69061116426.pdfIn PDF document text
    • http://svx.su/ffile/file/somuru.pdfIn PDF document text
    • http://lexprikson.com/admin/style/images/userfiles/file/sonesoge.pdfIn PDF document text
    • http://chinamakina.com/userfiles/file/93476211532.pdfIn PDF document text
    • http://nextgems.com/ckeditor/kcfinder/upload/files/29292938973.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620754a7adf79---miwojinujukudosuvefizime.pdfIn PDF document text
    • https://www.bookings.gulfstarsports.com/admin/kcfinder/upload/files/93899668305.pdfIn PDF document text
    • http://galluccifaibano.it/userfiles/file/42688434819.pdfIn PDF document text
    • https://alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/15712743624.pdfIn PDF document text
    • https://vnycc.com/userfiles/file/80404730552.pdfIn PDF document text
    • http://mya1fc.com/files/ckuploads/files/fowutubuwat.pdfIn PDF document text
    • http://pusat.wellcomm.co.id/assets/kcfinder/upload/files/titisagunovija.pdfIn PDF document text
    • http://gd-weimi.com/upfolder/e/files/20220311203516.pdfIn PDF document text
    • http://eros-arena.de/eros/userfiles/file/54766255362.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_off00058951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58951 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005a071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A071 10512 bytes
SHA-256: 9c9f400e700235c9dffa8cc52e6725c14c27de918f5e9d93f1fcb10a99a169c3
font_02_sfnt_off0005b840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B840 18236 bytes
SHA-256: ce6810d26c12609541f52dae30ba1ac2727f65988209931574e79d8e6b2bd6cd