Malicious PDF — malware analysis report

Static analysis result for SHA-256 875dfbede750d196…

MALICIOUS

PDF

268.4 KB Created: 2022-03-20 06:44:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 91c1eca0ead29b97bd9a73c3441e0ac2 SHA-1: 6b26fd492e0d32a4ac9726982e744210ff864ae5 SHA-256: 875dfbede750d1960437af203448f4db51c3effa541e1b86e1436fcd28f0e9c2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://rijst.nu/userfiles/file/gotalom.pdf In PDF document text
    • http://bestbuyfromindia.com/userfiles/file/45137847742.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620efd1af4110---88750402162.pdfIn PDF document text
    • http://haozuowenwang.com/imagefiles/file/83120971524.pdfIn PDF document text
    • http://studioiulianella.it/userfiles/files/fovoxifafulat.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/mimulamepedatibu.pdfIn PDF document text
    • https://texmet.pl/userimages/file/43628399192.pdfIn PDF document text
    • https://detectiveoffice.net/userfiles/file/tanuruxeteji.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/87442697281.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/44c05f46bedf3ca354583a89a0d9f1fb/menarepizixol.pdfIn PDF document text
    • http://installmysolar.com/userfiles/file/57822296050.pdfIn PDF document text
    • http://ponozky.gultio.cz/webpagebuilder/ckfinder/userfiles/files/xasagerekuvafozepijes.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/f42f4ek1fagt8pvg6s97ivko7u/lonaga.pdfIn PDF document text
    • http://bastola.org/userfiles/file/5048251198.pdfIn PDF document text
    • https://lifeskills4you.com/ckfinder/userfiles/files/zuludusekatufater.pdfIn PDF document text
    • http://tamker.hu/userfiles/file/fofonobikinagomegurerema.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/55763640169.pdfIn PDF document text
    • http://iaestedresden.de/userfiles/file/bilulive.pdfIn PDF document text
    • https://lazdynumokykla.lt/userfiles/file/87137224764.pdfIn PDF document text
    • http://www.fishandcosolicitors.com/uploads/files/vewupifozisenufozotino.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/27928496645.pdfIn PDF document text
    • https://fitvital.hu/userfiles/files/tisevadazilekugogi.pdfIn PDF document text
    • http://euro-service.org/kcfinder/upload/images/70132101387.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=hello+hello+bolke+songPDF link annotation
    • https://tes-sys.com/uploads/ckfinder/files/20220206/16441517237253.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_off0003c7e0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003c7e0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C7E0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003defb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DEFB 17180 bytes
SHA-256: 92d23c35582e691fac4c81320dfa8b3de62e57a67f5eb0e10c1d6e73c0e137f0
font_02_sfnt_off00040bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40BED 10160 bytes
SHA-256: 5174c14d2e05d7642a880b6b0b789dc466e28d08956cb6b27c2695506ec7d2e8