Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d53df128f6333a2…

MALICIOUS

PDF

352.1 KB Created: 2022-02-22 08:48:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: 0f50f583e25fb96829ce927470aeeb73 SHA-1: b153494d357015f2d19e4c65b3013e39036ec9ee SHA-256: 0d53df128f6333a23be73c5ad9c1c4f7b99797ec9393fb9ab0751f3e495efb0a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7478

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=board+of+trustees+meeting+minutes+template PDF link annotation
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/c26593a4fd5a67ea0a993be19b61e989/62001152708.pdfIn PDF document text
    • http://meandnetworking.com/ckfinder/userfiles/files/79066753969.pdfIn PDF document text
    • http://riggi.ru/userfiles/file/84738199702.pdfIn PDF document text
    • http://speakingaboutnetworking.com/ckfinder/userfiles/files/51653197545.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/11489253265.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161893c547072c---vipawetepeduza.pdfIn PDF document text
    • https://castel.ro/userfiles/file/16421371174.pdfIn PDF document text
    • http://goldenagegroup.vip/userfiles/file/nemep.pdfIn PDF document text
    • http://flexibordj.com/app/webroot/js/kcfinder/upload/files/temedunaziwenakaxixari.pdfIn PDF document text
    • http://avvocato-callegaro.it/public/file/72054795626.pdfIn PDF document text
    • http://icmasistemas.com/userfiles/files/53051711986.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161787b89722d8---31877042618.pdfIn PDF document text
    • http://aroma-es.red/yamituki-n/uploads/files/mudizakesepifegexokubera.pdfIn PDF document text
    • http://sarigol.kr/userData/ebizro_board/file/mudoxegobefetagosok.pdfIn PDF document text
    • http://mecal.vn/public/assets/ckeditor/kcfinder/upload/files/92192432836.pdfIn PDF document text
    • https://birgatour.mn/js/ckfinder/userfiles/files/pijukijatesej.pdfIn PDF document text
    • http://paolacaone.eu/userfiles/files/zifajananuzupebowuf.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16197b9155694a---bodiguponaki.pdfIn PDF document text
    • http://glampingcaravan.com/userfiles/file/20211215122047.pdfIn PDF document text
    • http://www.firstpages.eu/app/webroot/files/userfiles/files/861434858.pdfIn PDF document text
    • http://www.podunajsko.sk/app/webroot/ckeditor/kcfinder/upload/files/70994939097.pdfIn PDF document text
    • http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/mulosavu.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f144929f215---jabatexedurib.pdfIn PDF document text
    • https://bilalyapidekorasyon.com/userfiles/file/35316530492.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/54b7e591214aabad3c5d2e182d16b589/vapula.pdfIn PDF document text
    • http://harringtonandlombardi.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/savepadanazi.pdfIn PDF document text
    • http://printrun.nl/userfiles/files/xutabefijavabi.pdfIn PDF document text
    • https://luckysurface.itweald.com/uploads/files/619c9a194423f.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_off0005133b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005133b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005133b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5133B 10996 bytes
SHA-256: 01da153700d306193390cee844edb2f4a07b549d62089c8cce9deb77ae2d88a8
font_01_sfnt_off00052c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C8F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000543aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x543AA 17540 bytes
SHA-256: 14634710bb148605a4f694e0645eca3ee36af803fe4cd925705aa8278df3a130