Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d823fea704d5e…

MALICIOUS

PDF

260.5 KB Created: 2022-02-22 15:11:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: b853c2a4319123fec20e3a58364f02ee SHA-1: 4b0c72ffc3296be66f5f7c3bc28092e02766a98a SHA-256: af2d823fea704d5eee3575a76b1a29feb3970447d047c015bd131c401cd1a0c1
182 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=autocad+2013+64+bit+highly+compressed PDF link annotation
    • http://my-glc.com/uploads/file/68162087452.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/7d2f5e2f7fa9a68279df3e200267a92f/kejulu.pdfIn PDF document text
    • http://chongthamnguoc.vn/img/files/pefuje.pdfIn PDF document text
    • http://sten.kr/club/data/userfiles/file/20210905205349.pdfIn PDF document text
    • https://universalforshipping.universal4shipping.net/userfiles/file/bemifazuzifuxapari.pdfIn PDF document text
    • http://cathugo-catamarans.de/res/wysiwyg/file/13673330029.pdfIn PDF document text
    • https://milliondollardesiclub.com/upload_files/featured/files/jozopokamavekixe.pdfIn PDF document text
    • http://aqs-group.it/userfiles/files/27865861608.pdfIn PDF document text
    • https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/16756869976.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1611cf33e6c598---kenunuz.pdfIn PDF document text
    • http://bedrucken24.de/userfiles/file/pulogoxudari.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/10594643901.pdfIn PDF document text
    • http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/jegezogijokidofirupu.pdfIn PDF document text
    • http://nemeckystrakac.sk/editor_uploads/files/lerebetisomobopuxivet.pdfIn PDF document text
    • https://constructor.dilen.top/upload/files/fejitowanaseremosilo.pdfIn PDF document text
    • https://capitalsyndic.com/userfiles/file/15628448631.pdfIn PDF document text
    • https://triatlonshop.cz/userfiles/file/ladovipimuxetivuza.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161a6a6bd47cdd---8169742887.pdfIn PDF document text
    • https://membermimpi.com/contents/files/fomibepuzuxura.pdfIn PDF document text
    • https://novinfasteners.com/userfiles/file/11873730292.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2022-2-19/20220219105836258608.pdfIn PDF document text
    • http://wecans.net/_UploadFile/Images/file/85761894002.pdfIn PDF document text
    • https://www.bankkartya.hu/js/ckfinder/userfiles/files/ruluxegarazetune.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/8423146141.pdfIn PDF document text
    • http://sns-russia.ru/userfiles/file/67048962153.pdfIn PDF document text
    • http://progettogeometra.it/userfiles/files/96154136928.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_off00039dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39DFA 11904 bytes
SHA-256: 349a26c7ac17765966e60ed1f4a22286add2328680edba6e98b12e69c3bf49f5
font_01_sfnt_off0003ba4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BA4C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003d167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D167 18060 bytes
SHA-256: 460c618158eea8a49f71f5265eb1f485def75fabbf5140d18d9c9f9386c932c7