Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d135fd6e7c201e…

MALICIOUS

PDF

276.0 KB Created: 2022-03-19 13:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 4462d1ddbaf5c4a45f70577b98195419 SHA-1: 579a6ace494b52260fbd662bae3c9ee91b182325 SHA-256: c7d135fd6e7c201e6ddb23376b5025ad7382240c3ebbb08fabc60817a720afb9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

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://highfieldhousehotel.net/nbloom/fckuploads/file/42105486190.pdf In PDF document text
    • https://www.fondazionepolis.it/blog/ckeditor_fullcolor/kcfinder/upload/files/vapowulopubizisa.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/sazuxi.pdfIn PDF document text
    • https://felicityokolo.com/file/vejeniravazafumozaxa.pdfIn PDF document text
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/23859686189.pdfIn PDF document text
    • https://yoimart.com/upload/file/20220206172704.pdfIn PDF document text
    • https://rizecanreklam.com/images/file/vemebalabibag.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1622765202f732---zawejotexagajedajusa.pdfIn PDF document text
    • http://studioarclab.eu/userfiles/files/68967306206.pdfIn PDF document text
    • http://epicridesnepal.com/files/96017453677.pdfIn PDF document text
    • http://kulukaubandus.ee/files/filemanager/files/36506984204.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16226d936abfe1---84888211093.pdfIn PDF document text
    • https://jung.su/kcfinder/upload/files/37561730949.pdfIn PDF document text
    • https://averakazan.ru/kcfinder/upload/files/62199555938.pdfIn PDF document text
    • http://epplast.com/files/file/nekapelivun.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/4706c0b792f6e109ec01bd0e5bedc6c3/vigovezimibuku.pdfIn PDF document text
    • http://cold.lt/userfiles/file/23133295249.pdfIn PDF document text
    • https://thaiwoodengames.com/files/upload/files/58718171372.pdfIn PDF document text
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/bbbfa3f7a7f83306ccc4dcd9524205f4/19071073654.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/59211386210.pdfIn PDF document text
    • https://dreamscapes.ca/dream_scapes/userfiles/files/kadezusejitemawabuzorufo.pdfIn PDF document text
    • https://www.photosenpoesie.fr/ckeditor/kcfinder/upload/files/ridukopenidopumurog.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=lagu+op+blend+s+remix+dangdutPDF link annotation
    • http://ingenierie-mont-blanc.fr/kcfinder/upload/files/dazozovakuwokogonurawaro.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_off0003e2dd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003e2dd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E2DD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003f9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F9F8 17688 bytes
SHA-256: 39a100e5e7933107e51dea9c26d9e7c5c8bcc8b6ea411cdb2697843cef492695
font_02_sfnt_off0004282e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4282E 11032 bytes
SHA-256: 6113822fce81050fc567902d60ebf777e1d19f921072f3611cfde1397624aa97