Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8676b47185c287…

MALICIOUS

PDF

255.1 KB Created: 2021-12-25 00:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: e4a0de0741661e50d1929632fb6c439b SHA-1: 50017ff79ac732c98e550e6293586275e3267f16 SHA-256: aa8676b47185c287b7b9ea9d88ad6d1051d26f96c5e079f8fbb4bdeb0d7f778e
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7792

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://ontis.sk/editor_uploads/system/files/jamagisuvutibo.pdf In PDF document text
    • http://naosgym.com/userfiles/files/12203042350.pdfIn PDF document text
    • https://kanat.com/upload/ckfinder/files/rujabulaxujumufozo.pdfIn PDF document text
    • http://diar.pkauto.sk/images/_file/monurumifetavitipexu.pdfIn PDF document text
    • http://azizolace.cz/images/file/mewaru.pdfIn PDF document text
    • http://titusauto.hu/kepek/file/fozikov.pdfIn PDF document text
    • https://shevian.com/images/file/jiwivekowituzudido.pdfIn PDF document text
    • http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/zurumupudamidewa.pdfIn PDF document text
    • http://printrun.nl/userfiles/files/witogufekos.pdfIn PDF document text
    • http://dogwarts.ru/sites/default/files/file/36618738617.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161880057a6551---14256830889.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b1e1903ac76---64985789738.pdfIn PDF document text
    • https://grupa-energia.pl/attachments/file/29069182956.pdfIn PDF document text
    • http://fitviewer.info/files/file/5045487445.pdfIn PDF document text
    • http://sieuthibds.net/images/files/vanulinili.pdfIn PDF document text
    • https://rendszergazda-cegeknek.hu/ckfinder/userfiles/files/5309092841.pdfIn PDF document text
    • https://lienlacanien.com/img_pages/file/64415535483.pdfIn PDF document text
    • https://jocafoto.com/fotos/file/68157631863.pdfIn PDF document text
    • https://plagij.at/ckfinder/userfiles/files/zabewuvimerimej.pdfIn PDF document text
    • http://szhlfz.net/upload/dilolewoxox.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/vafebamupiruxosi.pdfIn PDF document text
    • http://getdol.com/page_data/file/bizoge.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=mapamundi+con+nombres+y+capitales+pdfPDF 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_off00038dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38DBE 11128 bytes
SHA-256: 7b550c42c8c5abc097e8cf772e3ad511f2beca661b1b251c07384ab9d53e402d
font_01_sfnt_off0003a778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A778 18700 bytes
SHA-256: 7ddfeded945a8301ea3b294bf39337f102485c89a88b54056991b7045c6636d3
font_02_sfnt_off0003d6a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D6A9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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