Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcc8f20652b0c3f…

MALICIOUS

PDF

308.0 KB Created: 2022-03-27 15:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 44cbf7cfac72549d20fb52b1fd2d67d4 SHA-1: c8c69788b24b9ea64c1d3b435d0053747439e0e5 SHA-256: 3bcc8f20652b0c3f1c2d4e902ae048a9bb73142f879dcf6b1dc4da8550008fdb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9512

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://helices-evra.com/userfiles/file/zidegimemiduxodan.pdf In PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16200707d29d64---sekob.pdfIn PDF document text
    • https://mavieromantique.com/images/files/50997501733.pdfIn PDF document text
    • http://polimak.pl/userfiles/file/87072168034.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621465fe27d07---46424714091.pdfIn PDF document text
    • https://hladiagnostico.com.br/kcfinder/upload/files/36902374934.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/6f7799bfa112692314ebd395c810ff84/vunonenapiripub.pdfIn PDF document text
    • http://www.rhkapadia.org/Admin/plugins/kcfinder/upload/files/pubexuzaxitapire.pdfIn PDF document text
    • http://centralcogtc.com/uploads/file/40853627860.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fcff24c8b2a---83949616921.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/97582745875.pdfIn PDF document text
    • https://helicopterleasingservices.com/userfiles/files/bawulafodekokiga.pdfIn PDF document text
    • http://francescofesta.it/userfiles/files/nuliwixapinura.pdfIn PDF document text
    • http://ivankotov.ru/img/lib/file/gakakifejopopuwaloteke.pdfIn PDF document text
    • https://nucamsa.es/userfiles/files/6147473724.pdfIn PDF document text
    • https://tavio.ru/files/file/suzefotoragataba.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/74869966985.pdfIn PDF document text
    • http://slavutich-media.ru/userfiles/file/2069035909.pdfIn PDF document text
    • http://mms.vru.ac.th/kcfinder/upload2565/files/32598976763.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=the+green+pastures+movie+downloadPDF 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 extracted file (font_00_sfnt_off00045e58.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045e58.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E58 18664 bytes
SHA-256: 1fe60f96d65f3eaea3de9064029dc0a3faf4e8bab1b9e58c13bf890f89b6f456
font_01_sfnt_off00048f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F83 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A6A3 11056 bytes
SHA-256: 6eee2d74dd915a239c5db78a38673d48899a5442f22ade920b2eb8828be31690