Malicious PDF — malware analysis report

Static analysis result for SHA-256 4500962c989c981b…

MALICIOUS

PDF

413.9 KB Created: 2022-03-02 15:19:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: a10fe8532d6b5324086259e3310f9ff5 SHA-1: 129461af1d6912ee4d6a05734eec65d4083a2be5 SHA-256: 4500962c989c981b8678ef79de3ce7a747df6cd03740da438575a1efc5407c81
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4866

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://yoyep.co.za/XSRYdR1H?utm_term=desk+calendar+2019+design+template PDF link annotation
    • http://getampedmag.com/ckfinder/userfiles/files/14807510180.pdfIn PDF document text
    • https://hokusui.co.jp/hsk/wp-content/plugins/ckeditor-for-wordpress/kcfinder/upload/files/kovitizosakapozarer.pdfIn PDF document text
    • https://edftrans.serwiskonsularny.pl/images_user/file/zusape.pdfIn PDF document text
    • http://hosteleriayvending.com/ckfinder/userfiles/files/12032748961.pdfIn PDF document text
    • http://cinebuzz.be/uploads/userfiles/files/lefejokokepuwazovurubigog.pdfIn PDF document text
    • https://essuances.com/ckfinder/userfiles/files/13416452067.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/674833abb764da829fc895e0c8ec4bd0/tinibetonotenokidofazu.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/4967f405e53086c26856299d442ffbc2/1621930508.pdfIn PDF document text
    • http://www.ipsc-pv.cz/kcfinder/upload/files/79161996241.pdfIn PDF document text
    • http://homesunshinepharma.com/upload/files/85350594490.pdfIn PDF document text
    • http://shinaval.ru/userfiles/file/92127483715.pdfIn PDF document text
    • http://sbriz.ru/userfiles/file/28342020282.pdfIn PDF document text
    • http://tehla.eu/userfiles/file/71167101284.pdfIn PDF document text
    • http://icon-studios.com/userfiles/file/kuxoponalorobutub.pdfIn PDF document text
    • https://mandaljeebanking.in/ckfinder/userfiles/files/36035653325.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/76754922473.pdfIn PDF document text
    • http://nellion.ru/upload/files/69509183128.pdfIn PDF document text
    • http://thoitranglani.com/upload/files/zojejideforufu.pdfIn PDF document text
    • http://ww2.forte.com.pl/js/ckeditor/kcfinder/uploads/files/66054208207.pdfIn PDF document text
    • http://thekkadyinfo.com/userfiles/file/gubenetiz.pdfIn PDF document text
    • https://gionggiacam.com/ckfinder/userfiles/files/82052513586.pdfIn PDF document text
    • http://ecoaga.com/documentos/file/lazepaba.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a4ad9664b8---lalunasutewuxiz.pdfIn PDF document text
    • http://dishandspoonproductions.com/ckfinder/userfiles/files/pujiditaxapekifakudosibe.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_off000602c6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000602c6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000602c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602C6 11292 bytes
SHA-256: ab286333e23081b440c31441d9ad364f41d81a1596af4396a5c5aecd9a9cd086
font_01_sfnt_off00061d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D2F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006344a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6344A 19976 bytes
SHA-256: a6cae4859efad312a691f4778490013040d7b3e10df7850e351844313448b536