Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bb6759bce8ca25…

MALICIOUS

PDF

71.0 KB Created: 2020-12-18 00:27:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: a9384f393c3145c2b75b17ea6d25b4f5 SHA-1: 45637a3a37d39979208ffcb5d825242277c40964 SHA-256: 72bb6759bce8ca25ee47f4891156ed24bbafff7be99788154ab99aee660fa31d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafffi.ru/123?utm_term=traceroute+no+dns+lookup PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc5740abdb33045eee0e015/t/5fc66cc5a97599144ed5b65a/1606839493665/alchemy_fusion_2_kombinacje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b57de8c-a058-4f27-821e-ba96a36aa752/fifa_16_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0db54a61-c70a-4c66-916a-8d04db9c265e/bosquejos_biblicos_cortos_para_predicar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/626bcfea-0496-4ffa-a819-729873b928b2/waginir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb480e9-4682-42bb-a189-ebc666f54bc2/lawn_boy_service_manual_1950-88.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b069403f5353fdb64a54/t/5fd08de32f29925fbb518c1e/1607503333751/layout_feed_instagram_downloader.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d050ccc-e4fc-43ad-b0d2-d30fdaebb946/silver_packages_lesson_plans.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/xozuvazegetagapitipajof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8ea77b7-58a5-4071-9d40-894c6728e391/54586509651.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/lojatowinijawedufej.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d71e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71E 5080 bytes
SHA-256: f93046875136866122161f19918eba9a6a38300ee2ddc0cd93942318a6521215
font_01_sfnt_off0000e874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE874 11564 bytes
SHA-256: d264e6ba97f9458ad33d00857f58a7a9bc4f8755fab2b9c7a11bdf94dde2f54f