Malicious PDF — malware analysis report

Static analysis result for SHA-256 8479a2a6c911b4eb…

MALICIOUS

PDF

385.3 KB Created: 2022-03-25 14:16:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 65ddc8f86bed38e868dcad5ffb452f1d SHA-1: f44abe3ffbe464aece23c4e8934ce88412d4f84f SHA-256: 8479a2a6c911b4ebf1822852e91d3b0b699f62396a605cedc01c3382003ec78c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3989

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 http://borsasetelsis.cat/admin/kcfinder/upload/files/besewalologaru.pdf In PDF document text
    • http://dulichtantai.com/files/uploaded/files/91262555785.pdfIn PDF document text
    • https://naveenent.com/administrator/imagetemp/file/nitat.pdfIn PDF document text
    • http://artediapharma.com/upload/files/92781652878.pdfIn PDF document text
    • http://bandodesign.com/assets/ckeditor/kcfinder/upload/files/4155548260.pdfIn PDF document text
    • https://promise-land.com/upload/file/lefamazeru.pdfIn PDF document text
    • http://re-ezumi.com/admin/kcfinder/upload/files/46980043811.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623122c42aeec---poxogesupubuguzupap.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/7hv6gpsado0l2a36rtskbe27us/xiribefiwolalatazixewo.pdfIn PDF document text
    • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/46539437781.pdfIn PDF document text
    • http://tropo-design.com/ckfinder/userfiles/files/74611550729.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16232da49c69ba---bikopufogevinoradujagojum.pdfIn PDF document text
    • https://www.ocnistudio.cz/ckfinder/userfiles/files/pelesanewuraxise.pdfIn PDF document text
    • http://bag777.coco1490.com/upload/file_folder/file/dozevu.pdfIn PDF document text
    • http://bezagsecurity.cz/userfiles/68590119350.pdfIn PDF document text
    • https://kientrucqhouse.com/uploads/image/files/pevadivefu.pdfIn PDF document text
    • https://kenhquangcao.vn/uploads/files/fagubamofigin.pdfIn PDF document text
    • https://mtdind.aicsmindia.org/ckfinder/userfiles/files/fedat.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/91103925456.pdfIn PDF document text
    • https://canoe.ro/Extras/ckfinder/userfiles/files/8341705459.pdfIn PDF document text
    • https://negaratoto.com/contents/files/37945008575.pdfIn PDF document text
    • http://www.de.ruben.pl/ckfinder/userfiles/files/wupodedi.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b5eed6efd4---digefo.pdfIn PDF document text
    • http://riph.pl/userfiles/file/62492201988.pdfIn PDF document text
    • https://thokhoavietnam.com/upload/files/kibirujapubuwemivedanora.pdfIn PDF document text
    • http://ban-dong-mat-cong-nghiep.theonejsc.com/userfiles/file/30407180143.pdfIn PDF document text
    • https://varida-tech.com/ckfinder/userfiles/files/naruwumonunisatamilosi.pdfIn PDF document text
    • http://watch62.ru/files/files/jatawanifasuwupufajaluta.pdfIn PDF document text
    • https://hotelharmika.com/assets/userfiles/files/17139169148.pdfIn PDF document text
    • http://nigerseedindia.com/uploads/nokeregupodegoso.pdfIn PDF document text
    • https://supportsurgical.com.br/assets/kcfinder/upload/files/nezaxekiladeba.pdfIn PDF document text
    • http://stonestudio.pl/files/upload/file/31866805407.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/thuvienquangngai/20220209/file/damodobujew.pdfIn PDF document text
    • https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/sobodiputekidukul.pdfIn PDF document text
    • https://emmaushuis.org/pages/11861401562.pdfIn PDF document text
    • http://massimosusto.eu/userfiles/files/75452500014.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/0e20c061bee308fbc4b90e6eabb95593/vifexatokonurabopunadod.pdfIn PDF document text
    • http://tecksco.com/upload/files/tekereverutafutux.pdfIn PDF document text
    • https://tablouri.emilianchirila.ro/imagini/files/pemagenu.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/90225561069.pdfIn PDF document text
    • http://ckud.handysociality.com/upload/files/gapolabivofebulenofedo.pdfIn PDF document text
    • http://novehorizonty.sk/userfiles/file/wapogojefijulopasuluxul.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/4b7384100c27be6636eb1c70b4e294cb/pulisolikiginijupurak.pdfIn PDF document text
    • http://zbigniewrodak.pl/galeria/file/54238873604.pdfIn PDF document text
    • http://www.anpamedical.com/kcfinder/upload/files/44298088873.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=glamour+photography+pdfPDF link annotation
    • 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
    +4 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057d88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D88 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000594a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x594A6 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_02_sfnt_off0005aa91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA91 18856 bytes
SHA-256: be0d7da8c0f8930e19d6c2b3eb65e7b2f53a242cb386e7bbaf5a1b84f7376ad9
font_03_sfnt_off0005db41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB41 10704 bytes
SHA-256: 6a772f0b1ffb3f4833e860dd8feb6e02baa35ba3123a8444598378e42ea7d739