Malicious PDF — malware analysis report

Static analysis result for SHA-256 1910a1b684841d6f…

MALICIOUS

PDF

624.2 KB Created: 2022-03-07 00:25:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 061fea74b0bbeccdc9e6bd90116db1a5 SHA-1: b78220004f0ac81daef249c46181d0a5b2dab33f SHA-256: 1910a1b684841d6f96d7d7e1f333e3f4604f6c86119218cae862f29c72a14a3d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1824

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://wirut.co.za/XSRYdR1H?utm_term=jobs+and+professions+worksheet PDF link annotation
    • http://impress-solution.com/file_media/file_image/file/mosolupevizig.pdfIn PDF document text
    • https://olympicaccessoriesbd.com/assets/ckeditor/kcfinder/upload/files/renuvuvumowevi.pdfIn PDF document text
    • http://messtores.ca/fck_user_files/file/70509978473.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16220fa1478217---vizegagowomo.pdfIn PDF document text
    • https://superpart.com/files/4966493178.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/qgncs08vl583bma9m10u2udpht/48565399552.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/11954229484.pdfIn PDF document text
    • http://lukasikgroup.pl/Image/files/95584411985.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16220b1f1d8423---99284855967.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211b41f4181e---jakibinevereze.pdfIn PDF document text
    • http://cadex-forensic.ch/app/webroot/kcfinder/upload/files/pawifeduxonedisek.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/repiz.pdfIn PDF document text
    • http://bugaboo-buffalo.eu/UserFiles/File/93244210286.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/segisimokibajisurewudut.pdfIn PDF document text
    • http://aow.infogestnet.it/ckfinder/userfiles/files/80040982482.pdfIn PDF document text
    • https://webdatedepot.com/userfiles/file/25831846851.pdfIn PDF document text
    • https://sma-dfgg.org/site/admin/file/2421388475.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16204312b9ac68---wimozulabezemusosej.pdfIn PDF document text
    • http://spasinnia.org/assets/ckeditor/kcfinder/upload/files/87541135373.pdfIn PDF document text
    • http://xn--hy1bt45apoap01a.net/jangheung/userfiles/file/larekunakopiwakaxobujusu.pdfIn PDF document text
    • http://etasystem.net/userfiles/files/mijidusupibatudimoxaxaze.pdfIn PDF document text
    • http://tallygroupkwt.com/uploads/file/89736549971.pdfIn PDF document text
    • http://goodmax.ru/i/files/xemuziwawelururubozonumar.pdfIn PDF document text
    • https://bharatbiodiesel.com/userfiles/file/navubetalotajanob.pdfIn PDF document text
    • https://marjoyunlar.com/calisma2/files/uploads/65236516982.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/pabebuwo.pdfIn PDF document text
    • http://z-sinpro.com/upload/files/13877668575.pdfIn PDF document text
    • http://galettedesrois.eu/userfiles/file/laluwaxivowanig.pdfIn PDF document text
    • http://tonioloclaudio.it/userfiles/files/momiludunegisadidikakejiz.pdfIn PDF document text
    • https://ahha.az/userfiles/file/mowixojo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00093871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93871 10860 bytes
SHA-256: 0308087888eb3d5b8ad3a7aed9b96f934058893b8f705221e795e355e4e65372
font_01_sfnt_off00095157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95157 19172 bytes
SHA-256: 0751791783f9f7f969a7ad8597c4f766df6d1c9b82f15806db2580046011dc8c
font_02_sfnt_off00098381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98381 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00099a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99A9D 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa