Malicious PDF — malware analysis report

Static analysis result for SHA-256 478e385afc247a39…

MALICIOUS

PDF

63.7 KB Created: 2020-11-10 17:00:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: aa5135e57aafd459a0bcd7f8951b5875 SHA-1: ec8c628cdfa696b54999e2bf797d3427a2748b0e SHA-256: 478e385afc247a39d5c788cbc753ea8f22aa9d1e1222b3962d655943049b604f
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://traffking.ru/wb?keyword=devil%20in%20winter%20read%20online In PDF document text
    • https://motuzasejufabo.weebly.com/uploads/1/3/4/4/134498516/7844799.pdfIn PDF document text
    • https://gibuzilo.weebly.com/uploads/1/3/4/6/134602166/4161155.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/6a7b67dc-d0e7-408e-924e-3d6224364209/zapafelazuxidenisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5c3c57b-5a0d-4dcd-9b9f-9475fc17a5ab/human_capital_refers_to_which_of_the_following.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/losekuzokinoxukimarov.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/canaan_elementary_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6768ad1d-52ef-4f90-8502-b1ac3c33ea31/42015056863.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/east_chestnut_street_mennonite_church.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f3d9b42-6d19-4db5-9e0c-49df58866436/starting_out_with_java_early_objects_6th_edition_ebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2de334bc-a6eb-4ec4-82c9-20d2d4677014/nuwegozovudavumot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32dd8acd-1e34-4dc5-af9c-e8ad2106a64d/numesisikulebijijirowufan.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_off0000c1c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1C6 4792 bytes
SHA-256: 77f6256d021059079aeb3021f8327e4b3366b5492b59e011cf9826382fb8b453
font_01_sfnt_off0000d238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD238 9844 bytes
SHA-256: 57a9445769398f2702ad0b398d08275f07de959a94b6f674b2cdf07f2b9a1650

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