Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c631a6d182cf9c…

MALICIOUS

PDF

380.0 KB Created: 2022-03-12 21:47:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 10859aeb796d2649d022f248b53ece6a SHA-1: 81ce75b4689e90b4dfdcc78694175f559936ea35 SHA-256: c0c631a6d182cf9c826adde2f9543d3847f86dcb4b2118f2c189d54e489c30a8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

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 https://lazav.co.za/XSRYdR1H?utm_term=incident+reporting+management+application PDF link annotation
    • http://tongchangkj.com/uploadfile/file///2022022223273514.pdfIn PDF document text
    • http://www.kymkarajok.net/tiedostot/files/raragozogo.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/fuxezuwikariduzorafiz.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/83972357038.pdfIn PDF document text
    • https://urudolfa.sk/upload/files/bepew.pdfIn PDF document text
    • https://crmtristan.talenzsoftware.fr/upload/files/71766148902.pdfIn PDF document text
    • https://www.nutfruit.org/js/admin/ckeditor/plugins/kcfinder/upload/files/vizaremefikeg.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620499bf2db7b---22742021206.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16208bb064cbc0---53588545389.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1620d70f8dcb03---nifozozerufotibi.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/nluskn3rs76ok2hr2g9v6u3j68/ronefepifexozodubudujapig.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a8f2b90e35---sidofutorozorufa.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/162046eb5e2b27---paxisavusedo.pdfIn PDF document text
    • https://actieaanbieding.com/upload/content/files/baguxutazefitaw.pdfIn PDF document text
    • http://sabotage-rockgroup.ru/upload/files/bujizokijajekubexu.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211f7a9469a5---depanogijamipivepu.pdfIn PDF document text
    • http://yuhongzg.com/d/files/34709245839.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/74815007727.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/77662865054.pdfIn PDF document text
    • http://texasman.com.br/webroot/kcfinder/upload/files/66046025153.pdfIn PDF document text
    • http://giustizianuova.it/userfiles/file/goluxonekerepu.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/67155208584.pdfIn PDF document text
    • https://travelworld.ro/userfiles/file/30871462448.pdfIn PDF document text
    • http://spbmedax.ru/sites/default/files/uploads/79975161708.pdfIn PDF document text
    • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/jajepepizul.pdfIn PDF document text
    • http://umbabox.com/userfiles/file/93790745117.pdfIn PDF document text
    • https://tramtron.vn/uploads/files/files/pinexurigamifuwesifebu.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/d7e1befdd95c5a0955ce1e3edfe0804b/52642473526.pdfIn PDF document text
    • https://showerdrainplus.com/uploads/files/202202220524335573.pdfIn PDF document text
    • https://bmw-zona.ru/uploads/file/dikizoliwikejoxuwilavi.pdfIn PDF document text
    • http://www.groupkms.com/ckeditor/kcfinder/images/files/tupuradopowap.pdfIn PDF document text
    • http://www.avtoschool71.ru/kcfinder/upload/files/rugaresob.pdfIn PDF document text
    • http://iuppiteredizioni.it/kcfinder/upload/files/29971315407.pdfIn PDF document text
    • https://chsins.tw/uploads/files/202202141147072544.pdfIn PDF document text
    • http://airserbia2009.vs.rs/multimedia/file/vusenozekakizuwiriw.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_off0005829c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005829c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005829c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5829C 17580 bytes
SHA-256: 7382ece8906b5bad7fda8f26989ccab043bffc215ae0139f7b26c5e661261604
font_01_sfnt_off0005b0a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0A2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005c7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7C2 10640 bytes
SHA-256: becf64ea2613f7b06dd505b83beb591643244d5d1313db0edffdb11bc5fb4ab4