Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dda8b7df375c4e…

MALICIOUS

PDF

514.6 KB Created: 2022-02-17 14:24:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 90e4d032d424b1035322e94b72b4f182 SHA-1: 6655e368e43c9337ecf07c39b9ae47db6d3c4c77 SHA-256: c5dda8b7df375c4e5eae13d46a105e273c03460f456a4987ff3d895357a09959
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5186

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://cafij.co.za/XSRYdR1H?utm_term=interview+in+english+pdf PDF link annotation
    • http://polletnv.be/uploads/files/fogavesajap.pdfIn PDF document text
    • https://cpsguffanti.it/uploads/file/tudabomepase.pdfIn PDF document text
    • http://bilmatbasim.com/userfiles/file/69033161080.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/20494820258.pdfIn PDF document text
    • http://grandfiltr.com/files/file/21967131171.pdfIn PDF document text
    • http://alocainghien.com/uploads/userfiles/file/76647704706.pdfIn PDF document text
    • https://sonnenheizungen.ch/fckeditor/editor/images/file/roxoga.pdfIn PDF document text
    • https://kaplaitalia.it/userfiles/files/sizipo.pdfIn PDF document text
    • https://www.vg42.ru/public/templates/kcfinder/upload/files/lolanadokejamugigogomego.pdfIn PDF document text
    • http://apmnir.ro/fckfiles/file/saneb.pdfIn PDF document text
    • http://fteq.ru/files/file/latubutaxexore.pdfIn PDF document text
    • http://www.vnv.nu/admin/library/ckfinder/userfiles/files/87636455370.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1615cbe1219e3e---lemorabajojim.pdfIn PDF document text
    • https://belretail.by/ckfinder/userfiles/files/84006615451.pdfIn PDF document text
    • http://dbexpertise.fr/catalogue_dynamique/file/kevexigufirinagisefabuvo.pdfIn PDF document text
    • https://eurosan.pl/user_images/file/gekonatezowatos.pdfIn PDF document text
    • http://tataservice.it/userfiles/file/50768989381.pdfIn PDF document text
    • https://almuhja.ps/ckfinder/userfiles/files/52123913397.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/94597664292.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/gikefowilobopogu.pdfIn PDF document text
    • http://onlinetalk.jp/app/webroot/img/fckfiles/file/defeva.pdfIn PDF document text
    • http://felixefontesadvogados.com.br/ckfinder/userfiles/files/5958182494.pdfIn PDF document text
    • http://pyroglobal.sk/app/webroot/files/userfiles/files/99064633800.pdfIn PDF document text
    • http://ckm-machinery.com/userfiles/files/58799070133.pdfIn PDF document text
    • https://8foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/bipos.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d8e646085df---vifomudok.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20210719175035.pdfIn PDF document text
    • http://ip-malkov.ru/uploads/files/93968122378.pdfIn PDF document text
    • http://primebrokeragetx.com/ckfinder/userfiles/files/womagavanubifogemi.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161c84151a14a9---51229650142.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_off00079c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C28 18468 bytes
SHA-256: cc19bd7c73b540bdca0b9e65943fe579b82cb9754f5055899ad985998a51d40c
font_01_sfnt_off0007cc4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC4E 10596 bytes
SHA-256: 3318b1d31678848ace1bcff2a4df394151b57cdf8bae38f9144aa0d808192440
font_02_sfnt_off0007e439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E439 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9