Malicious PDF — malware analysis report

Static analysis result for SHA-256 25816258cc4e85ff…

MALICIOUS

PDF

285.0 KB Created: 2022-03-12 04:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 9d748fdd78fe3425c44fa9d429bd5c5a SHA-1: e3418dbac17719cab14343a819fcc693108613fe SHA-256: 25816258cc4e85ff3270dc25f72c8fb10739e0fd11d12915c378c7f28e855cce
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6835

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://sgadsahodayatarntaran.org/sahodyatarntarannew/userfiles/file/67803250891.pdf In PDF document text
    • http://mini-garden.ru/userfiles/file/72091415600.pdfIn PDF document text
    • http://www.luchpain.ru/kcfinder/upload/files/89760960729.pdfIn PDF document text
    • http://www.gets-trade.com/webroot/upload/files/37049792556.pdfIn PDF document text
    • http://essential-people.com/USAID/file/52040010530.pdfIn PDF document text
    • https://rosanaalvarracin.com/userfiles/file/vonogadogafejigixeg.pdfIn PDF document text
    • https://varoslod.hu/kcfinder/upload/files/23419758427.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/18445087963.pdfIn PDF document text
    • http://michael-dhom.com/webseiten/file/tegakivoji.pdfIn PDF document text
    • http://www.bc-arman.kz/ckfinder/userfiles/files/2972311267.pdfIn PDF document text
    • http://progressive-auto.ru/app/webroot/js/kcfinder/upload/files/8428548071.pdfIn PDF document text
    • http://nishikizushi.com/js/kcfinder/upload/files/40558262897.pdfIn PDF document text
    • http://jandenzobv.com/image_uploads/file/30416898439.pdfIn PDF document text
    • http://warehousetraining.ie/images/selivogid.pdfIn PDF document text
    • https://krasaelectric.com/userfiles/files/25041033392.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/77dd36776694de9842f2df4b76c09157/mulago.pdfIn PDF document text
    • http://gtlmarinefuel.com/userfiles/file/zurenale.pdfIn PDF document text
    • https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/lozoseru.pdfIn PDF document text
    • https://www.monacruises.com/html/scripts/ckeditor/kcfinder/upload/files/60585757390.pdfIn PDF document text
    • https://investkwik.com/userfiles/file/lajekol.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/162146e7862302---43085769981.pdfIn PDF document text
    • http://sheilahancock.net/blogfck/file/13594889085.pdfIn PDF document text
    • https://loffoxfitness.mvwebsolution.com/userfiles/files/romepi.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/161fee63112b4d---razufipesuboroluvaxujejow.pdfIn PDF document text
    • http://www.crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/pinekuxevireta.pdfIn PDF document text
    • http://trips-in.com/ckupload/files/90782045347.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/pesefofutaxomolanezagab.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=rick+ross+b.+m.+f+musicPDF 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_off0004038d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004038d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004038d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4038D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00041aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41AA8 19172 bytes
SHA-256: b2e9db604d99b6309b86d658fe5c5dfa926c7f08120e74f6d665f9ff51be3efd
font_02_sfnt_off00044d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44D2F 10400 bytes
SHA-256: b2ba970cf9bc584977f2045ccaf83ead004ad0c3c4b18b269fe631ae5c041ff7