Malicious PDF — malware analysis report

Static analysis result for SHA-256 44100885cb7ffe1b…

MALICIOUS

PDF

284.3 KB Created: 2022-03-08 09:09:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 346a3ece395abb87ec95af6f245b94a0 SHA-1: 6e1f7fbbc8a4b37042f450024fa932031fdbb81e SHA-256: 44100885cb7ffe1b9bed85b1ef8500e90f705a040ec4c0134c336ad092f0417b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9494

Heuristics 5

  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=apa+format+6th+edition+citation+example PDF link annotation
    • http://kraski-chernila.ru/resources/file/8981750375.pdfIn PDF document text
    • http://studiolegalebisantis.it/userfiles/files/jalifofukozupidu.pdfIn PDF document text
    • http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/59078750279.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/rexunuseguzovukizolotoku.pdfIn PDF document text
    • http://nesthomes.in/userfiles/file/24007290199.pdfIn PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/jusivet.pdfIn PDF document text
    • http://restaurant-lyons.fr/userfiles/file/98770311131.pdfIn PDF document text
    • https://www.worldpco.org/includes/js/ckeditor/kcfinder/upload/files/49157633924.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/162253bd48f0b7---4702588647.pdfIn PDF document text
    • https://nationaalbeloningsonderzoek.com/nieuwsbrieven/berichten/85229881692.pdfIn PDF document text
    • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/86988605935.pdfIn PDF document text
    • http://axiomestates.com/userfiles/file/56858396097.pdfIn PDF document text
    • http://funkyspa.net/ckfinder/userfiles/files/solovexubugogepiferol.pdfIn PDF document text
    • http://crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/virab.pdfIn PDF document text
    • https://espiber.cl/images/uploadedimages/file/50025936757.pdfIn PDF document text
    • https://sibconsulting.com/contents/files/93907269504.pdfIn PDF document text
    • http://unternehmensberatung-hegenbarth.de/userfiles/file/xifusikamidakavoros.pdfIn PDF document text
    • http://goodslib.com/userfiles/file/70169889777.pdfIn PDF document text
    • http://arucax.am/user_images/file/8007981662.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 extracted file (font_00_sfnt_off0003fe07.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003fe07.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003fe07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FE07 19144 bytes
SHA-256: 55b5c6cf0c249860725339bb28f99cf7dbe0de2d214d2f870a504ba682d078e5
font_01_sfnt_off000430f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x430F0 10968 bytes
SHA-256: 39718dbbeaa948c4b92b54c34c24d2fcb02a8bc671a1ec934632b88c5f2719f1
font_02_sfnt_off00044a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A3F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9