Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6526b3cc8e5b07…

MALICIOUS

PDF

344.5 KB Created: 2022-01-25 22:52:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 27b0eaf0d6aab276bc5a188cb25811ab SHA-1: 4f01c9693d584df3e2f641f87fd4dd346382f2a1 SHA-256: 2b6526b3cc8e5b0729f77301e0d2d1b8aa629778f275573cc0be9e5c8f840a5e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7933

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://cafij.co.za/XSRYdR1H?utm_term=student+finance+study+abroad+form PDF link annotation
    • https://nieruchomoscikomercyjne.co/files/file/16481189054.pdfIn PDF document text
    • https://taybaite.com/userfiles/file/13361770456.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/5332653965.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161e58260cd847---salumitetonilejarob.pdfIn PDF document text
    • https://lecourbe.dk/userfiles/file/7683518119.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/0d6393fb24ac8d4a0941442309c3b2ab/ravosuradalubojideduv.pdfIn PDF document text
    • http://marienoellebermond.com/img/uploaded/file/90651840312.pdfIn PDF document text
    • http://elandtour.com/FileData/ckfinder/files/20210904_D8FBE8E5DC4DE0CF.pdfIn PDF document text
    • http://usefchina.com/uploadfile/file///2021112210090853.pdfIn PDF document text
    • https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/gorukumamabimeponodeves.pdfIn PDF document text
    • http://eintracht-bayreuth.de/kcfinder/upload/files/38470358961.pdfIn PDF document text
    • http://mertcelikkapi.com/userfiles/file/92187764512.pdfIn PDF document text
    • http://ozkayalartrans.com/userfiles/file/68717469740.pdfIn PDF document text
    • http://klemanpince.hu/files/file/demurokugufatenutirupo.pdfIn PDF document text
    • http://terezszilvia.com/images/uploaded/file/41899769746.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1617d24af5ff07---76688923896.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/15742289961.pdfIn PDF document text
    • http://telefoonindex.nl/images/uploads/fakixepubukunukexoxawexa.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614173a09a3e0---sufikadenikawi.pdfIn PDF document text
    • https://globalybm.com/ckfinder/userfiles/files/1638765428.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/gesijag.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_off0004f45a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F45A 11020 bytes
SHA-256: 42b661ff3f68919abefc972d590658f0d296fda1564d685bb628d0b29d7f4fac
font_01_sfnt_off00050e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E0C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000524ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524AB 18276 bytes
SHA-256: acaa3d111211d8faaa38b79e2435201fd9dccc4c43300ed2d1c184e65647b3ca