Malicious PDF — malware analysis report

Static analysis result for SHA-256 4453b8d9d69c59cf…

MALICIOUS

PDF

233.4 KB Created: 2022-03-30 09:10:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 4562b94dca8f248b4b56cd64378f5bab SHA-1: bfbeae3c0e7d40264e5fea11b6e06caeaa56f249 SHA-256: 4453b8d9d69c59cf1bdcd85791f871fba4308930f949241e5c4f46d456f945d9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7735

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://sunuf.co.za/XSRYdR1H?utm_term=devexpress+xtrareport+add+subreport PDF link annotation
    • http://banhangcongnghe.com/upload/FCK/file/96378197008.pdfIn PDF document text
    • http://foodzipo.com/uploads/userfiles/files/54876124571.pdfIn PDF document text
    • https://toshibacozum.com/panel/kcfinder/upload/files/92588458958.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/819174a2a8718e8f0df421f4e4adfda3/fikivebafafoniripoti.pdfIn PDF document text
    • http://prefinancovaniehypoteky.sk/res/file/tetumuzo.pdfIn PDF document text
    • http://aliguoriarchitetto.eu/userfiles/files/mebetowalikinusoxawoj.pdfIn PDF document text
    • http://schwierzy.pl/uploads/files/limixe.pdfIn PDF document text
    • http://millvalley.com/wysiwygfiles/file/dagador.pdfIn PDF document text
    • http://kapitan.eu/upload/files/tenakobidowuvirenafox.pdfIn PDF document text
    • http://countryclaim.cz/userfiles/file/maxukasopalinev.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16233c8ebe3d02---todewogatesabikiba.pdfIn PDF document text
    • http://autobedrijvenindex.nl/images/uploads/45106556889.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dc4fed47b7---48019944024.pdfIn PDF document text
    • http://nationalherbo.com/userfiles/file/38681371378.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/162415a587d3f1---38272487056.pdfIn PDF document text
    • http://hockjoohin.com/admin/uploads/file/30464110801.pdfIn PDF document text
    • https://lederstuehle-shop.de/ckfinder/userfiles/files/60244944808.pdfIn PDF document text
    • http://jesupraguefilm.cz/pic/files/55322648574.pdfIn PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/mobux.pdfIn PDF document text
    • http://aliguoriarchitetto.eu/userfiles/files/83393144270.pdfIn PDF document text
    • http://dar-tom.pl/userfiles/file/68583464618.pdfIn PDF document text
    • http://aguito.madteam.net/ckfinder/userfiles/files/12253284590.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/q7ibkib1gaih9i65qsf75uncdo/lalegipasivuworuvar.pdfIn PDF document text
    • http://magiepourenfants.com/images/mediamanager/file/wopekukurubelug.pdfIn PDF document text
    • http://globalone-mould.com/gbw/fckfiles/20220217071206.pdfIn PDF document text
    • http://daiichitelecom.com/uploads/news_file/defogenajag.pdfIn PDF document text
    • http://samtekelektrik.com/files/gofujowetolusamejatamemeb.pdfIn PDF document text
    • http://ikmblansko.cz/files/upload/files/tuzadedufimofosanal.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/zipuwuxuzeda.pdfIn PDF document text
    • http://khachsansapa.vn/webroot/img/files/jesewirutegobobodafex.pdfIn PDF document text
    • https://mimpishio1bet.net/contents/files/gopunen.pdfIn PDF document text
    • http://hajostanfolyam.hu/admin/kcfinder/upload/files/rirozu.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1621c38f2f4136---jafejibatuwuko.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1623e903817e91---85216505223.pdfIn PDF document text
    • https://jerseyshorepirates.com/userfiles/files/33375570890.pdfIn PDF document text
    • http://vibrobreaker.com/files/files/jagosepof.pdfIn PDF document text
    • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/59942d3934c6de4eae0b924187ff6588/73399947161.pdfIn PDF document text
    • http://paulkainth.com/sites/all/sites/paulkainth.com/files/46535212182.pdfIn PDF document text
    • https://topclassgreenery.nl/images/file/lurosegegarejaj.pdfIn PDF document text
    • http://banibime.com/public/kcfinder/upload/files/salutojejun.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_off000337a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337A9 10552 bytes
SHA-256: 89cdb626b2e7a87aa727d2fc25a2c6b08041acd522b746260b45efaca4defcec
font_01_sfnt_off00034fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FB2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000366cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x366CD 17900 bytes
SHA-256: 3466a3adab99696837ba3b9bb2250f355abff516895919fb9b9df189ec816e48

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