Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b318416440f2cd…

MALICIOUS

PDF

209.7 KB Created: 2021-12-04 16:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 13c57ec854751a2cc1aeaef728afbe3e SHA-1: e6868db33a3bfc54b11a5bec1fb0452f547542f7 SHA-256: 72b318416440f2cd85350e2b43e8a146bef576624302ec044e4af7b3909105b2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7830

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://ketex.com/trcgp/ckfinder/userfiles/files/27701822450.pdf In PDF document text
    • http://nasfthr.com/userfiles/file/49023442323.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16180b9aee55ae---jisozetavenuno.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617b41da3f2a5---liradaxot.pdfIn PDF document text
    • https://shevian.com/images/file/7666812973.pdfIn PDF document text
    • http://finproekt-msk.ru/userfiles/file/18434889338.pdfIn PDF document text
    • http://seychelles-resort.com/images/blog/file/55918874259.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/f44b50f7ca9a05f1f3f4ddf6b870fea5/62932468924.pdfIn PDF document text
    • http://nutrizionisti.eu/public/thread/risorse/file/bugilizufukumipanalor.pdfIn PDF document text
    • http://gaudi.tw/upload/file/nagonezuxevixojeg.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/4ff5fc9bed8044a1fb57d0187f385693/munoxoxavutafazun.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360e5ae1332---42243792521.pdfIn PDF document text
    • https://brincandoeaprendendo.com/fotosempresa/files/kifimituza.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aa2d8f8fe32---62882189746.pdfIn PDF document text
    • https://stvorki.ru/files/file/wibixuvemogif.pdfIn PDF document text
    • https://k-barrierfree.com/FileData/ckfinder/files/20211002_3A79A310A50221A6.pdfIn PDF document text
    • https://dukumanis.com/contents/files/66628650311.pdfIn PDF document text
    • http://pensjonatagat.pl/userfiles/file/55003050338.pdfIn PDF document text
    • http://aisne.proximeo.com/ckfinder/userfiles/files/87817341156.pdfIn PDF document text
    • http://reanda.com/jingkelun/userfiles/files/20211126031823.pdfIn PDF document text
    • http://studiodrago.eu/userfiles/files/87980619158.pdfIn PDF document text
    • http://www.portaldasfreguesias.com/portugal/vianadocastelo/vianadocastelo/geraz_do_lima_sta_maria/ckeditor/ckfinder/file/kajazifanek.pdfIn PDF document text
    • https://www.winsum.frl/ckfinder/userfiles/files/rezupotenubezuki.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=libro+de+historia+de+tercero+de+secundariaPDF 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
    • 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_off0002d43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D43C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0002eadb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EADB 20456 bytes
SHA-256: 7d0a078bac9deb0a1cd2a53cec73236571011fa5e5dc67cbbe984dff6b0c06c6
font_02_sfnt_off00031f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F10 10620 bytes
SHA-256: 6eee05881e9baa12a1fd1f665dde2d990e7d7187e196495f302caaf4bf2312f5