Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7dec7e4ded2ec4e…

MALICIOUS

PDF

308.2 KB Created: 2022-03-23 09:22:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: f5030c5e71529824e77b0735926c355a SHA-1: b5b56d453efbb742b861cf7ac1822436270f059e SHA-256: c7dec7e4ded2ec4e7ef889859aac33bd2a1e2865f2e738137fb202f6075a2432
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6245

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fecuq.co.za/XSRYdR1H?utm_term=ubervita+uberabs+abdominal+muscle+toner PDF link annotation
    • http://mtqindia.com/app/webroot/uploads/files/bizulasebogomefas.pdfIn PDF document text
    • https://healthlantern.com/ckeditor/ckfinder/userfiles/files/nonudilo.pdfIn PDF document text
    • http://ned.ru/uploads/files/6763039912.pdfIn PDF document text
    • http://jinruily.com/UploadFile/file/20220306080849977.pdfIn PDF document text
    • http://e-district.org/userfiles/file/vanapurinuko.pdfIn PDF document text
    • https://scout-educationguide.com/userfiles/file/xekererutiputaveze.pdfIn PDF document text
    • https://gheysenreal.com/uploads/files/xapimide.pdfIn PDF document text
    • https://rabudiagnostic.com/userfiles/files/32190178672.pdfIn PDF document text
    • http://www.abcklima.hu/data/editorfile/25064287680.pdfIn PDF document text
    • http://penzion.sarmo.cz/Images/file/14737861120.pdfIn PDF document text
    • http://blackhorsesc.pl/userfiles/file/85044327994.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/8bef14d4d1c26755007c7d9881541f26/nesazolilunuropalifot.pdfIn PDF document text
    • http://veedik.com/assets/admin/kcfinder/upload/files/fobidikamizunupu.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211e38366b32---52966383139.pdfIn PDF document text
    • https://subarini.ro/mm/file/64509626215.pdfIn PDF document text
    • https://aathichudi.org/userfiles/file/84444292974.pdfIn PDF document text
    • http://www.alarconarista.com/images/file/gupekazavafaxun.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621bac9b20cab---3307038754.pdfIn PDF document text
    • http://englandmatchshirts.com/assets/file/detosazafidimi.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/jidisixipoxe.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202202090713532475.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16235235ea6f18---jakepozepifokuvizojidas.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/37126866143.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2022-2-21/20220221045037947586.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_off000445d1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000445d1.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000445d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445D1 10844 bytes
SHA-256: bbf325b3b1b67351312c2d568c382a286feb72bf56ac1cd58172f38171c48eaa
font_01_sfnt_off00045ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45ED4 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off000474d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x474D6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00048bf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48BF1 20128 bytes
SHA-256: 5817227f4e28f7fbf8a477cf844855e417877273210b1317b3beba5d889a5498