Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5b13c862b1418…

MALICIOUS

PDF

507.5 KB Created: 2022-03-22 13:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: eb78fc60f26a16bd6f888b1f49686819 SHA-1: 6aa2f7ad7d4dfbf2d73e2c8be5ce610b189c8a1f SHA-256: 72b5b13c862b14182d0bff85939e2bdfd8f78b265f2dbefca50a7eb622ccc16c
122 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4620

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://colod.co.za/XSRYdR1H?utm_term=free+ramadan+activity+book+pdf PDF link annotation
    • https://cira.thinkabit.net/downloads/files/numobodaxanelebeguzuwedal.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/87753497684.pdfIn PDF document text
    • http://samvalentim.pt/assets/kcfinder/upload/files/fevifoziguwepoxekas.pdfIn PDF document text
    • http://beijingteye.com/upload/files/1028161635.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/40893456893.pdfIn PDF document text
    • https://eravukappalpalli.com/userfiles/file/guwubanoxajam.pdfIn PDF document text
    • http://conepe.org.br/public/ckeditor/kcfinder/upload/files/99286807091.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622b5465d49f5---25508032788.pdfIn PDF document text
    • https://haisanquangninh.org/data/dulieu/files/litagabitusefudo.pdfIn PDF document text
    • http://dinapart.net/frontend/web/kcfinder/upload/files/405429182.pdfIn PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/vulijag.pdfIn PDF document text
    • https://www.foodprocessingprojects.com/admin_assets/ckeditor/kcfinder/upload/files/26715536815.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/rudatejoba.pdfIn PDF document text
    • http://unitedpestmanagement.com/userfiles/file/48973695641.pdfIn PDF document text
    • https://zoorichi.com/temp/fckeditor/file/82494031321.pdfIn PDF document text
    • https://muachungbaohiem.com/uploads/userfiles/file/vodivogipegal.pdfIn PDF document text
    • http://mentaplywood.com/images_upload/files/febovoxazatuforowokaferow.pdfIn PDF document text
    • http://laguna.piyawatgroup.com/images/files/46617683831.pdfIn PDF document text
    • http://hzqljsj.com/images/upload/File/xujonosu.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162256586a77b4---52649164500.pdfIn PDF document text
    • http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/dorudosope.pdfIn PDF document text
    • https://linardi.ru/files/file/zusawolivol.pdfIn PDF document text
    • https://purevdavaa.mn/uploads/ckfinder/files/lebupadedaregagotiba.pdfIn PDF document text
    • https://www.smilinghorseranch.cz/domains/smilinghorseranch.cz/public/js/kcfinder/upload/files/kubikudowibujip.pdfIn PDF document text
    • https://www.oceaniacroisieres.com/html/scripts/ckeditor/kcfinder/upload/files/97654953885.pdfIn PDF document text
    • http://heaig.org/editor/ckfinder/userfiles/files/ruxop.pdfIn PDF document text
    • http://www.crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/wedejonaselob.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202202162110442472.pdfIn PDF document text
    • http://nepaldristi.com/dbros/public/ckeditor/kcfinder/upload/files/wuwuwekoxa.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00075f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F33 20044 bytes
SHA-256: e708272bb1ff549107bca614ca821f4f98ef9e12509e06912b7ba46a6ddd638a
font_01_sfnt_off0007929f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7929F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007a9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A9B9 17636 bytes
SHA-256: 98b991102961c076a8dc81bcba649940159ce1c3aebd362fe0910c22a194adff
font_03_sfnt_off0007c4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4E6 10956 bytes
SHA-256: 7f7d05c49ae32829c29020b0318ad695f4922e93a5dd58652280f10d116e59b3