Malicious PDF — malware analysis report

Static analysis result for SHA-256 450c2d81bc74814f…

MALICIOUS

PDF

375.9 KB Created: 2022-03-02 19:53:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 8b3774882274159233affd898bbd9ca8 SHA-1: 6697d4afbd038e4f3c30a2405be564074b4e4b51 SHA-256: 450c2d81bc74814f162745b31155a13d367bfec853cf528ccac5d1b4ce3b7e23
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://norin.co.za/XSRYdR1H?utm_term=photoshop+shapes+png+free PDF link annotation
    • http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/80155942404.pdfIn PDF document text
    • http://doingthing.com/downloads/blog/geust/files/vurizepogubutizafuwewoliv.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621d704c33881---susavizegeputojez.pdfIn PDF document text
    • http://engroupe.ca/aym_image/files/71514442285.pdfIn PDF document text
    • http://biblioteka-belzec.pl/upload/files/92419239980.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/36532642323.pdfIn PDF document text
    • http://kuzfarm.ru/images/file/68480736533.pdfIn PDF document text
    • http://wellcomm.co.id/assets/kcfinder/upload/files/tinuxijukijajokeg.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/29944671007.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/dp6mt295f8l6ldvtv9agtu8ilm/sozixevafo.pdfIn PDF document text
    • https://telenovella-bg.com/files/pokenubi.pdfIn PDF document text
    • http://runo34.ru/attachments/file/demafivaru.pdfIn PDF document text
    • https://vizcsap.hu/files/file/20524452390.pdfIn PDF document text
    • http://vivaibonomo.it/userfiles/files/nelaxotakudiluwamiwisax.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/pilefejula.pdfIn PDF document text
    • https://ccaquebec.com/userupload/files/xaxoso.pdfIn PDF document text
    • https://www.mtiwelding.co.uk/admin/ckfinder/userfiles/files/xixura.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f8ad6f0145d---37370538986.pdfIn PDF document text
    • https://gyogytorna-vac.hu/admin/kcfinder/upload/files/81081564470.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/9965a9bef3478e54620c096d5b01227f/58324796003.pdfIn PDF document text
    • http://denetimmusavirlik.com/userfiles/file/fizalevenuvarivuwibasabo.pdfIn PDF document text
    • https://marblobaths.com/app/webroot/img/files/kaxopepesesedinusagewu.pdfIn PDF document text
    • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/wavipevimelotised.pdfIn PDF document text
    • http://aptekainternetowa.net/_mdm_apteki/file/vozadumorewez.pdfIn PDF document text
    • http://outspokenholland.com/userfiles/fckFile/20220206071453.pdfIn PDF document text
    • http://rideco.hu/upload/file/15734662098.pdfIn PDF document text
    • https://herfection.herfection.tw/upload/ckfinder_temp/files/20220203192003.pdfIn PDF document text
    • http://esteel.my/userfiles/file/giboruzaxedasofebigawaxu.pdfIn PDF document text
    • http://wwstationery.com/files/file/funopirefabobama.pdfIn PDF document text
    • https://tkaniny-svitap.cz/kcfinder/upload/files/7098770783.pdfIn PDF document text
    • http://scuderieverdina.it/scuderia/userfiles/file/xupixuvixipajisaru.pdfIn PDF document text
    • http://security-m.jp/tool/images/file/weragefirubuko.pdfIn PDF document text
    • http://beautystyln.jp/uploads_file/files/jumiwapimetamevi.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/162192a1d86737---dosaf.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_off00057062.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00057062.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57062 10500 bytes
SHA-256: cf04afa7b27fa256f347bd6b7c8f10b404f7c96343de02449ef805208e02d014
font_01_sfnt_off00058849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58849 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00059f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F64 18592 bytes
SHA-256: 161ae6f37ad2d742b60fd5b9bbee896611eaf7ad1bb6dac2b228557234f9df08