Malicious PDF — malware analysis report

Static analysis result for SHA-256 78250d976108f63b…

MALICIOUS

PDF

324.4 KB Created: 2021-12-17 01:21:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: f2c79485c3e91b43dc93e1a10b48aa1a SHA-1: ffe4db8ea0de579b0f6aaf82da7a91ded2fb5153 SHA-256: 78250d976108f63bd2d6320456868ddbaa270326534779adc24c27cb2d1729f1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

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://www.como-grup.ro/fisiere/file/zinone.pdf In PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1617f4690339e9---zoganevomikafezux.pdfIn PDF document text
    • https://ipmgrouphr.com/uploads/news_file/18513758972.pdfIn PDF document text
    • https://excore.hu/ckfinder/userfiles/files/wezilinifetoropunox.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d032ecb05f---vuxijafonejogukijasame.pdfIn PDF document text
    • http://nail-free.com/ckfinder/userfiles/files/99502107252.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/b7343f0d890ec3bf45a000a4e6d91774/sedirowogerupifaripisovu.pdfIn PDF document text
    • http://jfhconsultancy.nl/userfiles/files/wevolufemulu.pdfIn PDF document text
    • http://xinchenfast.com/upload/file/36426826129.pdfIn PDF document text
    • http://designpavelzapletal.cz/files/file/68556705214.pdfIn PDF document text
    • https://invest.pl/userfiles/file/18658603215.pdfIn PDF document text
    • http://vietlinktour.com/userfiles/file/46471726858.pdfIn PDF document text
    • http://theurbanbazzaar.com/userfiles/file/41674999996.pdfIn PDF document text
    • http://nfc-lampang.com/user_img/files/jogedi.pdfIn PDF document text
    • http://hanstime.com/userData/board/file/dewuzebafevulozejebe.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2021-9-8/20210908124501921286.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b922588428b---xojajoweburasututokid.pdfIn PDF document text
    • http://associatedreclaimed.com/userfiles/files/xelemete.pdfIn PDF document text
    • http://konberdbio.com/upload/files/gifejimomulimugobidujola.pdfIn PDF document text
    • http://esipro.lu/userfiles/file/nomase.pdfIn PDF document text
    • http://bradzo-ep.com/uploads/files/24976615130.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/6aaca68a7c6513d4a22f28ce9102bfd8/zuvapojemuwunavaru.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/3b7be9de0fda8a69a111ccbcc20055f5/wipukinewesug.pdfIn PDF document text
    • https://larrialdiak.es/files/galeria/files/taninelolowubixenuvonukux.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=what+causes+a+bloodshot+eye+in+a+dogPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5D8 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004bc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC77 17424 bytes
SHA-256: 47b3f2e0bddc04d0aa93e9e0a40e5e99e95f826c0c40d4c76c9aed1553d24393
font_02_sfnt_off0004e970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E970 10896 bytes
SHA-256: fda985543e2135f365471f2f89bddbd22a8ae16f2f44cfd23dbcee7bf63b8c62