Malicious PDF — malware analysis report

Static analysis result for SHA-256 793a43673b62757e…

MALICIOUS

PDF

273.3 KB Created: 2022-03-28 12:59:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: c2df75c4e66cf03f3dbf7b813014bec3 SHA-1: 897684a8238e4175e5cd708e7381a5c6b7598268 SHA-256: 793a43673b62757eecb963cfe81bcf7f5e5e73b147ad8138dbc084579f81d3da
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded JavaScript and links to external URLs, including one hosted on a compromised WordPress site. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly suggests a business-email-compromise pattern, aiming to trick users into changing payment details. The presence of embedded JavaScript and external links indicates an attempt to download further malicious content or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7526

Heuristics 8

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=socra+ccrp+study+guide PDF link annotation
    • http://ulrike-mayer.de/userfiles/files/lipemigubewud.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/juxunizus.pdfIn PDF document text
    • https://ntwbearing.com/UserFiles/File/vofujadetuxorezaxoxa.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/162278120844aa---bukojadokesumidugiza.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1624003afc04b5---kabatilapabane.pdfIn PDF document text
    • https://www.photosenpoesie.fr/ckeditor/kcfinder/upload/files/27482740631.pdfIn PDF document text
    • http://jamalcar.com/userfiles/file/76054644863.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/jigonitefi.pdfIn PDF document text
    • http://avgustal.ru/kcfinder/upload/files/69104549676.pdfIn PDF document text
    • https://topas-rus.ru/media-temp/img/uploads/files/fedejewesatobavixuzu.pdfIn PDF document text
    • http://zeroseistudio.eu/userfiles/files/sanusabilegimixuzu.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/31a78d54b72cc9007f76055102a67f8a/77875768958.pdfIn PDF document text
    • http://bausite.ru/userfiles/files/mebupekafip.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161fad4b0a5305---sarunobarur.pdfIn PDF document text
    • http://csk-star.piweb.com/uploads/fck/file/48612326433.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/87304506171.pdfIn PDF document text
    • https://ppntassone.it/dati/upload/file/zijeduwukol.pdfIn PDF document text
    • http://sb-78.ru/files/file/ziwiwonitizewelur.pdfIn PDF document text
    • https://szerokiewody.pl/files/files/96330846396.pdfIn PDF document text
    • http://jewishfolksongs.com/userfiles/file/57501961872.pdfIn PDF document text
    • http://tavaszitura.eu/userfiles/files/zudariwivegovuvuso.pdfIn PDF document text
    • http://dgelc.com/userfiles/file/20220303111421.pdfIn PDF document text
    • http://7166867.ru/ckfinder/userfiles/files/guzogosubixapotox.pdfIn PDF document text
    • http://generaldistco.com/images/file/23732951904.pdfIn PDF document text
    • http://jingkangchem.com/upload/files/minadumutujesisegil.pdfIn PDF document text
    • http://suaups.net/userfiles/file/87995668923.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/zonusakiroliviziw.pdfIn PDF document text
    • http://leadingedgecorporate.com/user_images/file/66664147325.pdfIn PDF document text
    • http://archive-2013.humandoc.pl/attachments/file/gijubid.pdfIn PDF document text
    • http://icr34.fr/icr/icr34.fr/www/files/files/16005268946.pdfIn PDF document text
    • http://malopolskiszlakwinny.pl/upload/File/98580088666.pdfIn PDF document text
    • https://rmp-traueranzeigen.de/cms/files/jasiwojoza.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_off0003d07d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D07D 19788 bytes
SHA-256: 406e6fb20c9c7e4c4b1479b15fa9b83ba7d169f52dc69bef7ba61260767e1a92
font_01_sfnt_off00040483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40483 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00041ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41BA3 10828 bytes
SHA-256: 629ff62a769e4b4e4b08dece8b75330547141cf975e3a60344b8ca9b4e58d28f

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