Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd9cfac390642cf…

MALICIOUS

PDF

295.9 KB Created: 2022-03-04 18:52:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: fc94d0c70ac52071a2d00b7ea6d387cd SHA-1: 1f4b21be0da05e02e9cef89731cb339b38484bd0 SHA-256: 3dd9cfac390642cfa3d680e21502281d4a8c35d53a839b432fa3b58d4ca2f9d7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7513

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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=antivirus+test+performance PDF link annotation
    • https://uetty.xyz/js/ckfinder/userfiles/files/56080884591.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/84203688681.pdfIn PDF document text
    • http://entwuerfe.premo.at/userfiles/file/puxekofuzesikukik.pdfIn PDF document text
    • http://bandodesign.com/assets/ckeditor/kcfinder/upload/files/63369538832.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/fideposuwuxize.pdfIn PDF document text
    • http://bagsh.itpd.mn/kcfinder/upload/files/gukekerewaboki.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/rebevejogafatarafepariz.pdfIn PDF document text
    • http://glamour-nsk.ru/ckfinder/userfiles/files/mubapifib.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/bawidatufadubuwebum.pdfIn PDF document text
    • http://brenderup.ro/mm/file/bafigesijubarelawabakuzot.pdfIn PDF document text
    • http://seto.cz/uploads/fuvetudupevuj.pdfIn PDF document text
    • http://secondary.oksalesstore.com/uploads/assets/files/57532311916.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161fda1411bd33---2217276107.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216f3b508d48---55440453158.pdfIn PDF document text
    • https://openkomm.yussfone-crm.com/userfiles/file/10822322645.pdfIn PDF document text
    • http://studioindelicato.com/userfiles/files/sozutulurapowubasiputu.pdfIn PDF document text
    • https://dom4m.de/userfiles/files/3917841115.pdfIn PDF document text
    • http://giaphatmed.com/upload/file/mutebejewopanafuzij.pdfIn PDF document text
    • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/69612491407.pdfIn PDF document text
    • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/162187699bf509---kezolokabotu.pdfIn PDF document text
    • http://librojuridico.com/aym_images/files/75643698627.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d5a36d31b4---zupuxilefimoju.pdfIn PDF document text
    • https://bongkartuantakur.com/contents/files/japixitodagovojivudefet.pdfIn PDF document text
    • http://rayer.cn/d/files/vejiweji.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/83934142358.pdfIn PDF document text
    • https://mvpartners.be/images/uploadedimages/file/62828291059.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/162178d32ec630---nonoribixulalazedivedijad.pdfIn PDF document text
    • http://merten-antik.su/kcfinder/upload/files/97374484591.pdfIn PDF document text
    • https://essaidafm.com/uploads/FCK_files/file/62861876297.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16209af0174eea---51036644006.pdfIn PDF document text
    • https://tl-systems.hu/files/files/12588281850.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/sulofesurogumu.pdfIn PDF document text
    • http://rovitek.com/userfiles/file/gopato.pdfIn PDF document text
    • https://www.governancaparaobrasil.com.br/kcfinder/upload/files/77736785048.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_off00042d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42D4A 10740 bytes
SHA-256: 8b1892041ea3a01c321f3da1c926d9feadbab5403bed5d1cae49caa497592e74
font_01_sfnt_off00044615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44615 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00045d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45D30 19328 bytes
SHA-256: 9c5655bef4c32794ce0a0962e545d2839b9d8f8e7e327b6c2518a5712c83e871

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