Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad72b74eddb8940…

MALICIOUS

PDF

390.0 KB Created: 2022-01-20 06:51:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: db8e0262e3512b0b9210b518af261324 SHA-1: 26f5be8ed19c10f2b4a327cb544381c6c5f29456 SHA-256: 9ad72b74eddb894019d9131afa30f9bb61fe38cf49e8529d1ae65d25495da483
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6961

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/59055901753.pdf In PDF document text
    • http://k2plusinterior.com/userfiles/jozima.pdfIn PDF document text
    • http://apsons.eu/files/file/dipinafowinodepobugipuso.pdfIn PDF document text
    • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/wabugasi.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161544971395a7---ligufavozekomorevagiwet.pdfIn PDF document text
    • http://mauchlineware.com/html/chapelstreet/web/userfiles/files/dozesidanixu.pdfIn PDF document text
    • https://satbietthu.com/luutru/files/33489689388.pdfIn PDF document text
    • https://jewelryforthespirit.com/admin/images/file/89541858021.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/b1d2d152846cd40ef9f24d3cb90195e4/zabafole.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/tamonekise.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/37774451851.pdfIn PDF document text
    • http://srividyaastrology.com/userfiles/file/sokoretovej.pdfIn PDF document text
    • http://frankifoto.com/uploads/pages/files/16387900632.pdfIn PDF document text
    • https://nghiepvu.udicmanpower.vn/uploads/news_file/90558471832.pdfIn PDF document text
    • http://flynewsletter.com/uploads/file/xusumudifadav.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/75107914541.pdfIn PDF document text
    • http://aolisenjiancai.com/data/files/68157113541.pdfIn PDF document text
    • https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/vagodexojewabujer.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/lojazowenerurof.pdfIn PDF document text
    • http://krajcsovicz.hu/kcfinder/upload/files/78309964090.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/9c6f59e089ee837687bc5cd88d669833/31575111502.pdfIn PDF document text
    • http://bidwoodmachine.com/d/files/miguzeso.pdfIn PDF document text
    • http://stw-nowogard.pl/download/file/gopuxewugapaladibojam.pdfIn PDF document text
    • http://kollegium-szombathely.ferencesek.hu/files/file/67328198091.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RhDyTiV0TgQ/uplcv?utm_term=attorney+client+engagement+letter+templatePDF 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_off0005ae99.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005ae99.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ae99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE99 16612 bytes
SHA-256: f2447a9a9716e630f4f685bc4b75591ef9adc46494df1f48c6a15e4f3a74166b
font_01_sfnt_off0005d998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D998 10644 bytes
SHA-256: d1a4414c5974b1f17ab5f03357a57f4ecf836c2bd12f930abf8ef498bed22a89
font_02_sfnt_off0005f1f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1F8 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336