Malicious PDF — malware analysis report

Static analysis result for SHA-256 726cde91365ce7ca…

MALICIOUS

PDF

392.8 KB Created: 2022-03-15 01:56:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: 0ed5c0975056ff559d81e14b0e1b12e0 SHA-1: 258689ef4a6557adb7ca8312d4f70e333d63cc13 SHA-256: 726cde91365ce7caacb9e08587d9a63049f45c342ef4265d1ef2b8eb71fd3066
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5598

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 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 http://reside-realestate.de/user_files/files/fenomuxe.pdf In PDF document text
    • http://vssteel1999.com/ckeditor/userfiles/files/nefarakemo.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/85521527554.pdfIn PDF document text
    • https://ipmgrouphr.com/uploads/news_file/nerunojelep.pdfIn PDF document text
    • http://www.kirmatas.org.tr/kcfinder/upload/files/xoderomovokevekil.pdfIn PDF document text
    • http://vvk-wiedermann.at/userfiles/file/10044219353.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/162215f24d1543---76208416595.pdfIn PDF document text
    • http://advocaciaciervo.com/kcfinder/upload/files/sumuzo.pdfIn PDF document text
    • http://diversecityuk.com/userfiles/file/71478060190.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/67e8718ff0d74f815f74ccb8e1304e33/sutoribavetajutoteb.pdfIn PDF document text
    • http://winecellarkeeper.com/ckfinder/userfiles/files/jaleze.pdfIn PDF document text
    • http://thechinatailor.com/uploadfile/file/2022031311063673499.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/162145bfb9d01d---bibevapof.pdfIn PDF document text
    • https://biurodluga.pl/files/files/44311461852.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1620af8baa567f---81325186904.pdfIn PDF document text
    • http://newworldss.com/uploads/file/malevopusuvor.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/7e8e31a87a5897378f6275a7e57cf1fb/30931807415.pdfIn PDF document text
    • https://roshnaai.com/ckfinder/userfiles/files/32106301834.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16210931f28b48---nazupumipesaguwen.pdfIn PDF document text
    • http://underbutter.cz/download/foto/mowuwazumabos.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/62444925143.pdfIn PDF document text
    • http://velomagazin.hu/UserFiles/file/78780012494.pdfIn PDF document text
    • http://coca-colalife.eu/userfiles/file/18378674391.pdfIn PDF document text
    • https://hk-delight.com/UploadFiles/file/dazowowigazofewe.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/1942403520.pdfIn PDF document text
    • https://www.worldpco.org/includes/js/ckeditor/kcfinder/upload/files/52965089763.pdfIn PDF document text
    • http://em-mould.com/ckfinder/userfiles/files/69761924087.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/u7dqnjb0vogt4u7apcl74tpdf7/22660901246.pdfIn PDF document text
    • http://twsl.mingann.info/upload/ckfinder_temp/files/20220204001002.pdfIn PDF document text
    • http://www.puhito.hu/uploads/59405071944.pdfIn PDF document text
    • http://cocoal.com/uploads/file/zegomaduf.pdfIn PDF document text
    • http://klavierunterricht-bergedorf.de/files/files/19281591466.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d3eb884b24---kefasenaseliwuro.pdfIn PDF document text
    • http://vizugy.hu/uploads/files/gowajibiwozokim.pdfIn PDF document text
    • https://drproperty.org/userfiles/file/risojipefesajubewid.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/63146983953.pdfIn PDF document text
    • https://latrinquette.com/upload/editor/file/wofiwekawadagidoxevuvuwi.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=us+history+book+answersPDF 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_off0005b33c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b33c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b33c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B33C 10600 bytes
SHA-256: ae063ae76fb61db465c52eeca86c965d5773598613b85c1cc53801b80e685326
font_01_sfnt_off0005cb8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB8A 18384 bytes
SHA-256: 276b62bb8be35b240ec93baff0b70f14c446064694ed3f52d9b47749bcafd98d
font_02_sfnt_off0005fbb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBB0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9