Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca67c4309827a1a7…

MALICIOUS

PDF

347.0 KB Created: 2022-03-27 15:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 4cecbf6d88e52a7c33642b5130e307eb SHA-1: be4c5580e3596348fcac10cbf2eaef7a36577db8 SHA-256: ca67c4309827a1a7910d51502baaf2b349c665b60cf1c4c3ae8e3101a8b2f094
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7036

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://nt-module.ru/ckfinder/userfiles/files/kujob.pdf In PDF document text
    • http://euskararenginkana.eus/files/galeria/files/79327509648.pdfIn PDF document text
    • http://uralinteh.com/uploads/files/zozenitez.pdfIn PDF document text
    • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/16601041759.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620fb1da222bc---poled.pdfIn PDF document text
    • http://studiotecnicoforace.eu/userfiles/files/76128403022.pdfIn PDF document text
    • https://dallaslandscapedesign.com/media/files/pisujivikuxafafoxitax.pdfIn PDF document text
    • https://morabia.fi/images/file/bevitofum.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623629a7de74c---46986641461.pdfIn PDF document text
    • http://palazzodiaz.com/userfiles/files/55613165913.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/gonutoxutosatetiputik.pdfIn PDF document text
    • https://abhrian.com/userfiles/files/vetowa.pdfIn PDF document text
    • https://powerliteaac.com/userfiles/file/54210946537.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/5d0a7bdcfe28ad154455acb19ceb35eb/21708490178.pdfIn PDF document text
    • http://marjoleintje.nl/include/userfiles/11024554976.pdfIn PDF document text
    • https://tkaniny-svitap.cz/kcfinder/upload/files/tuzewezaraxivijasi.pdfIn PDF document text
    • http://taxfreepoint.com/file/doxigizonud.pdfIn PDF document text
    • http://lab4050.com/upload/editor/file/37734718933.pdfIn PDF document text
    • http://alacarte-grafik.de/userfiles/file/31361786387.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/86516327089.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/nujubetexenil.pdfIn PDF document text
    • https://kimyasaldubeller.com/upload/ckfinder/files/82385937720.pdfIn PDF document text
    • https://kossuth-csepel.hu/inc/kcfinder/upload/files/10479835090.pdfIn PDF document text
    • http://yanartextil.com/firma/files/68784866953.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/gofunonir.pdfIn PDF document text
    • http://ellipsisnovel.com/file_space/files/tabibu.pdfIn PDF document text
    • http://ceramicaartisticamarsalese.it/userfiles/files/21507339717.pdfIn PDF document text
    • http://tatvideo.ru/ckfinder/userfiles/files/ruvinemarawumunepaxugosa.pdfIn PDF document text
    • http://architettoseneca.com/userfiles/files/boban.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=celine+dion+album+songsPDF link annotation
    • https://konkrea.be/uploads/files/26681464408.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_off0004f7c9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f7c9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F7C9 10664 bytes
SHA-256: d2997f569ede423e545dcd029bcaa023a0f1388e8664e76051274e2b88932882
font_01_sfnt_off00050fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FED 20296 bytes
SHA-256: 11c06845c80a239f2eb44f9c346c9e79ab733fdebea3a8940f8c98bddcdef157
font_02_sfnt_off0005453d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5453D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9