Malicious PDF — malware analysis report

Static analysis result for SHA-256 847ddbd5df9dc17a…

MALICIOUS

PDF

66.2 KB Created: 2020-12-20 14:03:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 648933882558a516b96cb3ea922c133e SHA-1: 8d129c5f054386cd480b7e4e8912cde783874660 SHA-256: 847ddbd5df9dc17ab23b8dc8b0a58aed1d4ae7acb53435948f13be71c7d3b668
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/strik?utm_term=black+men+and+public+space+worsheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4463034/normal_5fb9d9bb7f0bd.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/sudevawisazenawemuf.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/81364094719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393348/normal_5fa6cc82d457c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444875/normal_5f9d09ef3da74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454171/normal_5faae1e324b3e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489586/normal_5fd08d8b45ae1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_5fb4c83af3875.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c7c5.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c7c5.bin)
    • https://uploads.strikinglycdn.com/files/22301f78-3af2-44f0-83ee-622ba8099dbb/cell_energy_crossword_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c8ddff2-3867-4855-9546-ec98e76bb9a6/freemasonry_and_catholicism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ebfd31-9e68-41ea-ba71-47e34beb44d1/54636752279.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0c9c72f8b574a0f57a0d/1606225053730/groudon_best_moveset_fire_punch.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 extracted file (font_00_sfnt_off0000c7c5.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C5 5660 bytes
SHA-256: ccd16685abe0082d8cae239fbaa93c2dcbaf21af6485acba16589b717b97a60b
font_01_sfnt_off0000dade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADE 9728 bytes
SHA-256: 8acdb8dc8131e8fbe5a35792bca59400ef1c6af6b76a3f9c60f9ffd9199dfc01