Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff28eac2d1e29d41…

MALICIOUS

PDF

478.8 KB Created: 2022-03-01 05:53:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: d675bb651ede67db23ed7337e416619f SHA-1: c49ca5588ad7ed3e9ecf703eb5d01c5e60af5a59 SHA-256: ff28eac2d1e29d41727439efe60499510d5eaffbc13bd067b4146f87e662d43f
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5627

Heuristics 7

  • 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.
  • 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://tevav.co.za/XSRYdR1H?utm_term=9th+standard+tamil+guide+2019 PDF link annotation
    • http://ktimavoyatzi.gr/images/files/files/wisogofavako.pdfIn PDF document text
    • http://canoeing.by/pics/files/67025892965.pdfIn PDF document text
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/c804e98f40310642a9021d78b3b06950/tejosokozakowuxumipas.pdfIn PDF document text
    • https://mobile-translator.eu/app/webroot/media/files/68770696898.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16202955f2151c---35068255348.pdfIn PDF document text
    • http://pleasanton.com/wysiwygfiles/file/8140792070.pdfIn PDF document text
    • https://questyme.com/userfiles/file/32979237175.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162101abbdfb28---48841630247.pdfIn PDF document text
    • http://styrexon.cz/userfiles/file/26746129093.pdfIn PDF document text
    • https://cargobull.cz/res/file/govesowutinizolob.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20220215145843.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/162125430ac5d8---70920036237.pdfIn PDF document text
    • https://szallas-karpatalja.com/upload/33069696907.pdfIn PDF document text
    • http://ci-tesco.com/kcfinder/upload/files/91901349562.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/kodalo.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/gedewizovekor.pdfIn PDF document text
    • http://chokmanee.com/userfiles/file/wilikedav.pdfIn PDF document text
    • http://www.huescalamagiaenfotos.com/userfiles/files/17236979068.pdfIn PDF document text
    • http://lovepetclinics.com/file_media/file_image/file/poxixuviwapozup.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/ginapolapilatufeleli.pdfIn PDF document text
    • https://obo.olsztynek.pl/assets/includes/kcfinder/upload/files/94279318902.pdfIn PDF document text
    • http://asremajazi.com/uploads/files/45808458752.pdfIn PDF document text
    • http://redeyeldn.com/userfiles/file/dugomixifuramelova.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161ff05c3e9674---zenitokexojisa.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_off00070edf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00070edf.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00070edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EDF 11040 bytes
SHA-256: fec80724274b6b973af86669d1dbe6f5a0650032444d02c7168a6a29058c42e6
font_01_sfnt_off0007283a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7283A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00073f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F55 17464 bytes
SHA-256: 1d59ae682a7df402206a09ea8de35460ee0095a77419dbaa992defa90c6750be