Malicious PDF — malware analysis report

Static analysis result for SHA-256 af25d8fb2ceb5d04…

MALICIOUS

PDF

523.3 KB Created: 2022-01-14 10:54:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 61659f28f113bae9fe2f6b800c62ba4a SHA-1: 9d0d4a685df3b9b7fe13e43084d6f5f2a3aeef68 SHA-256: af25d8fb2ceb5d04e39d38271d6463086da0454d015137ce7c1e7f2498aebc43
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6013

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://tahitotfalu.hu/ckfinder/userfiles/files/54373853296.pdf In PDF document text
    • http://sendedianqi.com/upload_fck/file/2021-12-4/20211204044401443620.pdfIn PDF document text
    • https://koratspring.com/upload/file/60074812549.pdfIn PDF document text
    • https://subarini.sibiuimobiliare.ro/mm/file/zovazejisipuzezobevagoje.pdfIn PDF document text
    • https://optimumquestsolutions.com/ckfinder/userfiles/files/47281129288.pdfIn PDF document text
    • https://giriconsultancy.com/content_files/files/13837930288.pdfIn PDF document text
    • http://www.ks-klinika.ru/ckfinder/userfiles/files/65578626528.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/caab8bae6f67a0f53189396ad93f934e/24363307906.pdfIn PDF document text
    • https://plasy.com/uploads/file/fajilapokibukel.pdfIn PDF document text
    • http://aviafond.ru/userfiles/file/rogivelumezol.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/161762c18c4876---62555052132.pdfIn PDF document text
    • http://fotostudiovaccari.it/userfiles/files/13774977783.pdfIn PDF document text
    • http://anpharma.net/upload/files/wixajagavogunigid.pdfIn PDF document text
    • http://kk-gorenjska.si/uporabnik/file/76476506190.pdfIn PDF document text
    • https://dadesigning.com/daduserfiles/files/riwigow.pdfIn PDF document text
    • https://rdw-wolf.de/backend/ckfinder/userfiles/files/57634131012.pdfIn PDF document text
    • http://papienbanana.com/user_file/file/94816617073.pdfIn PDF document text
    • https://bahamianbrewery.com/ckfinder/userfiles/files/sudebajorag.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/4dZi1sgP-vI/uplcv?utm_term=adjustment+disorder+with+disturbance+of+conduct+pdfPDF 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_off0007c06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C06A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0007d709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D709 17660 bytes
SHA-256: 1cb6bb9c9fa210e5400299028babad03421b181479a5d35d42e90b1cbfb83051
font_02_sfnt_off00080482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80482 11276 bytes
SHA-256: e81d37fe92a82fc37a2c5ba0660cf9c712fda0a727664fa630140c1c3382902e