Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dec266b97c5c0ef…

MALICIOUS

PDF

324.8 KB Created: 2022-03-10 01:58:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 58b91e952d86927f06a0f1c7ab98b6a0 SHA-1: fbae33e701c2e780afe7d18670dd027548e115fc SHA-256: 4dec266b97c5c0ef1be83e15ef22ca59c0745ecadcfb0193b8956af9d284dc94
161 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7819

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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 http://www.pvvc.cz/files/xukipupebuwofida.pdf In PDF document text
    • http://printways.filtronro.com/pa/trainstation/uploads/image/file/91713253315.pdfIn PDF document text
    • http://sriagasthiyarastro.com/FCKeditor/userfiles/file/8865329645.pdfIn PDF document text
    • https://szemere-iskola.hu/images/files/mubuzem.pdfIn PDF document text
    • https://smartbrand.ro/mm/file/63298845818.pdfIn PDF document text
    • http://thetestmag.com/userfiles/files/37934180354.pdfIn PDF document text
    • https://panelshock.com/userfiles/file/54852808937.pdfIn PDF document text
    • https://betenagro.com/sites/default/files/file/supup.pdfIn PDF document text
    • http://nguyenphat.com/public/default/ckeditor/files/74785429413.pdfIn PDF document text
    • https://valstybestarnyba.com/upckfinder/files/vopejozopumuk.pdfIn PDF document text
    • http://x-site.by/upload/editor/files/matalevesafiwiwibomolik.pdfIn PDF document text
    • http://meandnetworking.com/ckfinder/userfiles/files/xevoxiwe.pdfIn PDF document text
    • http://noithatdangcap.vn/app/webroot/uploads/files/14162932682.pdfIn PDF document text
    • http://geoscan.it/userfiles/files/71322370647.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/34405133401.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/sizejigowonuvesibebe.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/88135423128.pdfIn PDF document text
    • https://songhongresort.com/img/files/bexuj.pdfIn PDF document text
    • http://allasclub.com/campannas/file/30645752329.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/ac47807461770970db88bdfd876b973e/42998267864.pdfIn PDF document text
    • http://mayfairplace50.com/kcfinder/upload/files/27874024601.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/kutagenadoxufopajimetu.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/wadobasukelupo.pdfIn PDF document text
    • http://irfanmakina.com/depo/sayfaresim/file/refinun.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=aromatouch+doterra+pdfPDF link annotation
    • 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_off0004a6d8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a6d8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A6D8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004bdf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDF8 10556 bytes
SHA-256: 2130c9f5558caf8152acbf5a873191c6a7f8a3e43b7a39eaa5796dcb33749cd1
font_02_sfnt_off0004d615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D615 17468 bytes
SHA-256: a5ec66cc5064de03cc5f2d9c1dabd1e07de130886657d9e06652aae522a9a709