Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3c4ae2bc3c68ee…

MALICIOUS

PDF

47.0 KB Created: 2020-09-30 16:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: f48ad03a1c6c15f60082a9ac42cf2fc0 SHA-1: 448c61a6603890d12a17aff70b6fb580a2ec54d1 SHA-256: 4e3c4ae2bc3c68eeff96c60fb09aa0ccf96c1670a051dd1cf35757fb35985e68
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://gettraff.ru/strik?keyword=download+french+english+dictionary+pdf In PDF document text
    • http://demebexej.wandalaclaire.ca/uploads/1/3/1/4/131438233/berutorum_kunavujuvug.pdfIn PDF document text
    • http://fuwef.kimberlesboutique.com/uploads/1/3/2/7/132740780/vufaneralemosikal.pdfIn PDF document text
    • http://xasosusuv.fashionbysitaramysore.com/uploads/1/3/0/8/130814235/dakizukiduwetek-sosape-gavatasapatil-kafileterujoz.pdfIn PDF document text
    • http://files.altoimaging.com/uploads/1/3/0/7/130739340/waxunotozubit.pdfIn PDF document text
    • http://xelok.michael-debbie.com/uploads/1/3/0/8/130873848/2204287.pdfIn PDF document text
    • http://files.threadsolelife.com/uploads/1/3/1/4/131438128/1e8a94f895.pdfIn PDF document text
    • http://files.andrewphillipschmidt.com/uploads/1/3/1/3/131384568/sezokaxuxizuxav-dasexupagabejuv.pdfIn PDF document text
    • http://gukukar.freezeraypoetry.com/uploads/1/3/0/7/130740441/bca3944fc5ad858.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/3b04aacb-3b92-45e2-84c7-ff2dfb502e3c/tunalamapunaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0ed2858-b07b-4b88-ab8d-fe2f4ed3387d/27089238145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/confirmation_email_template_bootstrap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2076/9685/files/branches_of_educational_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6591/8884/files/guided_flight_discovery_private_pilot_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3371/3050/files/tagoxiloxanibeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/qwik_pack_and_ship_turnersville_nj.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_off0000773f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773F 5612 bytes
SHA-256: 411fef5458185aa6bd5d12e618e3fad64ca03b1b7528c5fd0d5c6a8bda3c4b1e
font_01_sfnt_off00008a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A78 10524 bytes
SHA-256: 19f233cf0f56163558d390fb290ba5c226325f5af4bf342b3b070b2bfb12f4e1

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