Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b550d8d8291002…

MALICIOUS

PDF

430.1 KB Created: 2022-02-17 04:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 9e7edcf477e218837f4809cfb9ac94b6 SHA-1: 81342349aa4163aab220481512b030e5d183a3a1 SHA-256: 72b550d8d8291002023d803c51f0c586014ce7e4db9ff76ac263ea895a4b8168
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5001

Heuristics 5

  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=catalase+enzyme+lab+report PDF link annotation
    • https://bahia-group.com/ckfinder/userfiles/files/jeraz.pdfIn PDF document text
    • http://okna-stv.ru/userfiles/files/88838609360.pdfIn PDF document text
    • http://burfel.ru/upfiles/files/dupebu.pdfIn PDF document text
    • http://yokosohk.com/files/fckfiles/file/kituworu.pdfIn PDF document text
    • https://www.aillant-sur-tholon.com/ckfinder/userfiles/files/guzujorefisurixokebom.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/93248439745.pdfIn PDF document text
    • http://wilkinsconnection.com/clients/9/94/94ba1e7d864c5c8af3bb481f5f9f31de/File/nejoten.pdfIn PDF document text
    • http://sakurahoaanhdao.com/webroot/img/files/waveved.pdfIn PDF document text
    • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/samupufavusozubejaba.pdfIn PDF document text
    • https://pujabhandar.com/kcfinder/upload/files/pofuvewakiworupunipopofu.pdfIn PDF document text
    • http://www.tractortools.cz/ckfinder/userfiles/files/jobimowuwigetifekudegatab.pdfIn PDF document text
    • http://bctlorraine.org/userfiles/file/kumaludetavavinixujekegin.pdfIn PDF document text
    • http://atmaircenter.com/lb/userfiles/files/buzitumuriminaki.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/zegeduvosibokabiwivojafa.pdfIn PDF document text
    • http://modaxch.com/userfiles/files/72806013511.pdfIn PDF document text
    • http://realcomfort.ru/content/upload/file/bikujas.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618c5a57d02db---fifimukixa.pdfIn PDF document text
    • http://tahyuh.com/uploads/files/202112182237422768.pdfIn PDF document text
    • https://rabudiagnostic.com/userfiles/files/6010331867.pdfIn PDF document text
    • http://runo34.ru/attachments/file/jewomob.pdfIn PDF document text
    • http://theflowermaker.com/uploads/File/54571915580.pdfIn PDF document text
    • https://www.weboonline.com/ckfinder/userfiles/files/25010332283.pdfIn PDF document text
    • http://koreaseals.com/ckfinder/userfiles/files/8474493.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 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_off000649df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649DF 10668 bytes
SHA-256: 39d9c8e1cb400c37838b313915defdffd5ff4e3d3c5d416192b90995476a4f78
font_01_sfnt_off0006622e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6622E 18396 bytes
SHA-256: 65cc7474935274cb1ad91333e1acf6ad76335590639d1b3833d8087eaae8a2cc
font_02_sfnt_off00069244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69244 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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