Malicious PDF — malware analysis report

Static analysis result for SHA-256 42579e08a6028475…

MALICIOUS

PDF

78.5 KB Created: 2020-12-29 19:27:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 5c434a1e39c5e3a28e080f665399558c SHA-1: 3e0f3b19f7bd89a0dcf77f134a51d3680a8c18b2 SHA-256: 42579e08a6028475e18a4d8bf30390ee0ba49d19cc8d6837d3dd1fdcb0a7be7b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://traffnew.ru/123?utm_term=watch+the+dark+knight+online+free+dailymotion PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415748/normal_5fb46156e90ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450045/normal_5fe4888e16967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472186/normal_5fafd20772e0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376357/normal_5f94859245bd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3adf96bb-eeb7-4de3-a52b-3aba5924d6bc/temperature_of_saturns_rings.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/star_wars_episode_3_123movies.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/peter_van_daan_or_van_pels.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/macmillan_english_language_book_4_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/falexu.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/xisomizumeruxabibun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97187e1e-41a9-4af1-9d39-02e8eff595b4/why_we_love_helen_fisher_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/misuguwevazavudela.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/3875318985.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/305777f2-6d9d-443a-a1af-354a009f1ba6/vsco_x_hack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/gojuzu.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_off0000f29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29D 5436 bytes
SHA-256: 98b973bb01feb57d5300206c767cd1e4a5f905618fbb107c64c07e7a6b36fecd
font_01_sfnt_off0001050b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050B 11588 bytes
SHA-256: 09a8f322d657693b98d6561396aea43ab6970474e5ad049c8cc74d2dc6e32495