Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6d98100c91eb88…

MALICIOUS

PDF

323.2 KB Created: 2022-01-10 20:07:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 83f449fbb86df2ace804125d95782042 SHA-1: b163b5fb15a5a2a230b985e1b3392c8663376847 SHA-256: 2b6d98100c91eb887f88e0b5d58f46645228ce5f71a63c4cc3eccefe15d13eaf
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8005

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://www.3gimmobilier.com/kcfinder/upload/files/26746717616.pdf In PDF document text
    • http://aotwresort.info/ckfinder/userfiles/files/jepubedijetawedolawoviwu.pdfIn PDF document text
    • http://zehanbiopharma.com/upload/files/diwimasaselejir.pdfIn PDF document text
    • http://korvet-sp.ru/userfiles/file/reridizuwoku.pdfIn PDF document text
    • http://k1a.ru/images/files/file/62627492877.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/7e6810b1e3c60fc8921304d846da9833/6888756962.pdfIn PDF document text
    • https://xn--hjrnskadeakademien-mtb.se/userfiles/file/mojalonimuvisusomojupabif.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161b0a6f6e876e---70722764566.pdfIn PDF document text
    • http://banglatalkies.com/dynamic-images/cms/file/34279944951.pdfIn PDF document text
    • https://gilbertems.com/videos/file/59574720755.pdfIn PDF document text
    • https://aimic.com/userfiles/file/jegevefe.pdfIn PDF document text
    • http://bionazorat.uznature.uz/userfiles/file/vawukawera.pdfIn PDF document text
    • http://www.motionmantra.com/userfiles/files/xigutazekufikuruvixusi.pdfIn PDF document text
    • http://tehtours.com/uploads/file/xokaluvabonu.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/npj6272tfdt7956f8nn9ui6d51/nebegowufaxosamimopux.pdfIn PDF document text
    • https://cplastik.cz/data/cms/file/79721526715.pdfIn PDF document text
    • https://comillaspostgrado.es/userfiles/file/paxikefunipuxepiza.pdfIn PDF document text
    • http://lanaecoloridabruzzo.it/userfiles/file/5305402088.pdfIn PDF document text
    • http://sfc-dp.gov.bd/assets/ckeditor/kcfinder/upload/files/95885863595.pdfIn PDF document text
    • http://daltan.hu/userfiles/file/22870507345.pdfIn PDF document text
    • https://umartravel.com/files/jopoponogulevifegopi.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/10554331779.pdfIn PDF document text
    • http://bkht.vn/userfiles/file/gepajego.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/Z3ufxtS7Wvw/uplcv?utm_term=quidditch+hogwarts+mystery+guidePDF 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_off00049cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CC8 11028 bytes
SHA-256: 4fcad7cd70580b8595030790e4ccea2fcf0ab41181bce17ece7bdd65c27277b3
font_01_sfnt_off0004b66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B66E 18372 bytes
SHA-256: 687e86cb3be772d48f6f9d697aaa568f517230fc0cb0b660d14ccf87507ef10f
font_02_sfnt_off0004e61c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E61C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336