Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d36f0caa251124…

MALICIOUS

PDF

648.4 KB Created: 2022-03-19 04:42:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 76c710f6a67b6164dd7ace6fe156ab39 SHA-1: a52c68f7626c126d21ee683d193243dec7bedb3a SHA-256: b5d36f0caa251124f7633eadc5c48c4f16175327b0baf6396620ccb008c1bd94
161 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3910

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.
  • 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 https://norin.co.za/XSRYdR1H?utm_term=face+anatomy+drawing+pdf PDF link annotation
    • http://artattack-concerts.de/files/file/xizuz.pdfIn PDF document text
    • http://sanjosechakan.com/lib/kcfinder/upload/files/fawumediloroxajo.pdfIn PDF document text
    • http://hotelparkplaza.in/app/webroot/js/kcfinder/upload/files/wezopepovisanipidosusot.pdfIn PDF document text
    • http://ubytovani-budejovice.cz/picture/vtextu/file/metevi.pdfIn PDF document text
    • http://bdsps.org/slbdavbatala/userfiles/file/93965867747.pdfIn PDF document text
    • http://ulv-fogger.es/d/files/tepedefowegixegosobaxa.pdfIn PDF document text
    • http://cuboni.com/uploadfile/hong202202211554258931.pdfIn PDF document text
    • http://cheliabinsk.realxenon.ru/uploads/files/liwumuzofapakodotabekute.pdfIn PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161f91fb4dc5a6---kiwikufajuzu.pdfIn PDF document text
    • http://lrpharmaceutical.com/upload/files/85910312705.pdfIn PDF document text
    • http://saipanbooking.com/FileData/ckfinder/files/20220216_E4F446FD5871D09D.pdfIn PDF document text
    • https://galantemontagnana.it/ckfinder/userfiles/files/58198228743.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/86861824082.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/12600690983.pdfIn PDF document text
    • https://cribpointonline.org/cribpointonline/userimages/file/34787059726.pdfIn PDF document text
    • http://moscowballet.ru/userfiles/file/zukalen.pdfIn PDF document text
    • https://paperland.bg/uploads/file/zikexuxegatiriletus.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/445c6567bfeaff18bb00347cffb95049/75230200829.pdfIn PDF document text
    • https://12shio2.com/contents/files/25931730555.pdfIn PDF document text
    • http://mondoacquapiscine.com/userfiles/files/zapitovusivizajanilozib.pdfIn PDF document text
    • https://luxury77.com/kcfinder/upload/files/65406941570.pdfIn PDF document text
    • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/09ebe812a63064f7b119aa24079e4f04/45348573813.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/xetifoxose.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/33877093194.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/jimifaru.pdfIn PDF document text
    • http://stellar.ru/ckfinder/userfiles/files/65144043978.pdfIn PDF document text
    • http://ipceurope.com/assets/file/51321236738.pdfIn PDF document text
    • http://www.littletreepreschool.com/admin/kcfinder/upload/files/mubunadirena.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/574905af303fe1fd08422e5671e8e75f/pesanafedukezojobagoz.pdfIn PDF document text
    • http://bangtaisay.com/uploads/userfiles/file/rorowesijerumafodi.pdfIn PDF document text
    • http://eg-connect.com/php_codes/Scott/VieauAssociates/code/userfiles/file/magevitej.pdfIn PDF document text
    • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/81364723347.pdfIn PDF document text
    • https://vyaspublicschool.com/ckfinder/userfiles/files/17536824251.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_off0009ad00.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0009ad00.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0009ad00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD00 20132 bytes
SHA-256: d5fd2c9b513fc536cf20865705eb5e099d40d261af5826694e724162d4108458
font_01_sfnt_off0009e211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E211 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0009f931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F931 10928 bytes
SHA-256: 8780a2022fc6423b2146b89c7099ccb6901ad224e437df8a4366e4bf67802bfc