Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb82ba059f8b6b70…

MALICIOUS

PDF

276.4 KB Created: 2022-03-16 19:00:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 2dd5df012fc6f5b3a8c5749a30d98f9c SHA-1: d5f68857e9c7aa47cf08f722f851cf5f50c40c5b SHA-256: cb82ba059f8b6b706679fa266ea9bae7853c6e49fffd97cf25980f4ea8f5f8ca
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7038

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://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/95531993318.pdf In PDF document text
    • http://consorzio-csa.it/userfiles/files/70394220248.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622c2ce600c6c---dodozafij.pdfIn PDF document text
    • http://www.americaninvest.net/upls/files/devawa.pdfIn PDF document text
    • https://biblioteka-koneck.pl/ckfinder/userfiles/files/8863372637.pdfIn PDF document text
    • http://riviera.az/userfiles/file/fatisunomofoja.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/suvatidademubukimebufugan.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d01ff20928---48412445073.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/99946010892.pdfIn PDF document text
    • http://simpelms.nl/userfiles/files/2521882167.pdfIn PDF document text
    • http://aftp.bg/userfiles/file/39431226759.pdfIn PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/sataxi.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1620e3b1de8fa2---xujeriretubaxifukesapisi.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/57799869840.pdfIn PDF document text
    • https://tezerwatch.com/file/upload/files/03-13-17-32-44-16.pdfIn PDF document text
    • https://bticino-rozetki.su/kcfinder/upload/files/42390698410.pdfIn PDF document text
    • https://ibest.itcmati.ru/admuploads/file/fixemenibuvawik.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/vodizusogoxewixa.pdfIn PDF document text
    • https://www.anefescuela.es/files/tasijatezun.pdfIn PDF document text
    • https://duhocblueocean.vn/ckfinder/userfiles/files/43350756778.pdfIn PDF document text
    • https://kapefashion.com/files/files/dasox.pdfIn PDF document text
    • https://questyme.ca/userfiles/file/pozijiromuvasizu.pdfIn PDF document text
    • http://sokol.knezmost.cz/soubory/15210577622.pdfIn PDF document text
    • http://www.masozilina.sk/ckfinder/userfiles/files/3039977511.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/bc2f53447196cd7e275ec7ab7d88d290/56381010045.pdfIn PDF document text
    • http://lafedja.cz/public/file/goriruwejosavapow.pdfIn PDF document text
    • http://saraswatishikshamandir.com/singhania/downloads/file/fogenurirexa.pdfIn PDF document text
    • http://www.groupementpecheduloir.com/ckfinder/userfiles/files/83496139066.pdfIn PDF document text
    • http://madiagranitosilano.it/userfiles/files/68854508313.pdfIn PDF document text
    • http://vallovin.it/userfiles/files/wuwugekesapuxajom.pdfIn PDF document text
    • http://elmarahtravel.com/public/kcfinder/upload/files/67202266016.pdfIn PDF document text
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/3afba4822ec682a9a4f953c228584a84/99577354278.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=mcafee+antivirus+free++full+version+2017PDF link annotation
    • http://gabortech.com/admin/file/nejij.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_off0003e045.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003e045.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E045 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003f765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F765 10832 bytes
SHA-256: 16ac027b461d7406832d6fa0c9fb36c1818c826c2ff66e9ac17f624d9bdccacd
font_02_sfnt_off000410ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x410BA 19124 bytes
SHA-256: fea77c642615301d1cdfc653e910903f1d6333fdc28890ce737e7b71ad07a09d