Malicious PDF — malware analysis report

Static analysis result for SHA-256 478a7a6b7b4744ab…

MALICIOUS

PDF

33.7 KB Created: 2020-10-13 23:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: f0beda8ba8f42a5e341a7ce47a571e9a SHA-1: 1dc5cc2a936460eb618f8ea96a325d0fffca3dfe SHA-256: 478a7a6b7b4744ab2e018d47b9a79fc1f7e6923dfe18f9196bfc09f5272bd3e0
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://cctraff.ru/strik?keyword=targeting+handwriting+vic+pdf In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8554420.pdfIn PDF document text
    • https://site-1040685.mozfiles.com/files/1040685/kizamamazexevuk.pdfIn PDF document text
    • https://site-1037829.mozfiles.com/files/1037829/mebexate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/pyxis_of_al-mughira_inscription.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6598/2632/files/poisonous_snakes_in_arkansas_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5209/5898/files/stata_program_already_defined.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/3032/1568/files/blackmart_alpha_apk_free_download_for_android_latest_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9560/3865/files/carbon_schools_sis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1686/5952/files/scion_tc_turbonetics_turbo_kit_review.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_off000046c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C1 5308 bytes
SHA-256: 94f6d7536a3861362aa3614604fdc3005c1e1993bbd2b15e3c2df76277e4bf39
font_01_sfnt_off000058e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E1 9724 bytes
SHA-256: 6ff66e09e413612aa80d36bf9760222c59040c463529d06de1e8bd9d451231dc