Malicious PDF — malware analysis report

Static analysis result for SHA-256 91fa245f3d82cc04…

MALICIOUS

PDF

308.6 KB Created: 2021-12-27 17:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 43feaaa9e68785c987c5b3fe5ae88737 SHA-1: e876f923de35f6ea413780fcbbb40f364da40c74 SHA-256: 91fa245f3d82cc046140fd4ec4b5e625080eb777a9e37247417574b710ed9237
251 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7749

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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.
  • 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://onnetsolution.in/userfiles/file/36385388139.pdf In PDF document text
    • https://epgeptech.hu/ckfinder/userfiles/files/rixufakolidogatokux.pdfIn PDF document text
    • http://arabstina.com/ckfinder/userfiles/files/lenikofixabuzujovejuzediw.pdfIn PDF document text
    • http://yuanhebiotech.com/upload/files/lized.pdfIn PDF document text
    • http://phanvienphianam.com/uploads/userfiles/file/44010692726.pdfIn PDF document text
    • https://hotnewsmd.deca.md/upload/userfiles/files/86372064223.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/dukerigumiwositulafezix.pdfIn PDF document text
    • https://topclassgreenery.nl/images/file/76750657659.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/35b31480973eb26481c4790014e41575/91283778428.pdfIn PDF document text
    • https://protectname.xyz/whoisprivacy/userfiles/files/gafoxudogojevededonu.pdfIn PDF document text
    • http://lynxauto.ru/userfiles/file/43049896897.pdfIn PDF document text
    • http://1night2day.com/ckupload/files/zopifafetavefiw.pdfIn PDF document text
    • https://binarbaidtrading.com/public_html/userfiles/file/99033769314.pdfIn PDF document text
    • https://blueparadise.pl/userfiles/file/1847323660.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159f6c8d9f7a---lizumusifagugonat.pdfIn PDF document text
    • http://studiopol.it/userfiles/files/91997079241.pdfIn PDF document text
    • https://bachson.net/upload/file/bugefexilelukow.pdfIn PDF document text
    • http://insfilings.com/skyzone_classic/upload/files/69161946377.pdfIn PDF document text
    • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/52588694853.pdfIn PDF document text
    • http://nikolalepojevic5.com/multimedia/file/45964246908.pdfIn PDF document text
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613970c25b0eb---xinobekimepogalibusowoxe.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/eed04a46c77df8de335a6da7afaa294a/tununalem.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/l525tu8lo2nnocn08pj2t9j6a1/xubizetepamaxeruzuz.pdfIn PDF document text
    • http://levant-tekstil.com/other_files/File/89511201801.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/5bhJmFgkeCE/uplcv?utm_term=autograph+movie+video+songs++in+tamilrockersPDF 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_off0004647b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004647b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004647b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4647B 11200 bytes
SHA-256: fdbebc56dc9c7d8925df12721b3331a06cbb180f35ed48fdfd2200d8fe46bf17
font_01_sfnt_off00047e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47E5F 18040 bytes
SHA-256: f44ed4e1cf65428aa329a51437b9b92310f25f9f4e88db7cb5422c0df5b36b1a
font_02_sfnt_off0004ad49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD49 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336