Malicious PDF — malware analysis report

Static analysis result for SHA-256 445c7929ff6438ec…

MALICIOUS

PDF

38.9 KB Created: 2020-10-09 03:30:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-10
MD5: 2f4e45d91de4dd3fe192303a8af414db SHA-1: 02577533d91e037269363d0a87677c8b0fe23930 SHA-256: 445c7929ff6438ecb893df139413d9d938fa32c59e68e7b99c50ae2a60cb49bc
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://ggtraff.ru/strik?keyword=depo+takip+program%25C4%25B1+excel+%25C3%25BCcretsiz In PDF document text
    • https://site-1037141.mozfiles.com/files/1037141/94713041421.pdfIn PDF document text
    • https://site-1043923.mozfiles.com/files/1043923/zibukaxejirota.pdfIn PDF document text
    • https://site-1036659.mozfiles.com/files/1036659/1569984912.pdfIn PDF document text
    • https://site-1038932.mozfiles.com/files/1038932/73388044354.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/0c1e7f51-52fb-4e4f-9718-575f0d65a392/76123627665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610311a0-feba-4485-8b5b-d07e463c6223/66423702115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f91218d3-48ea-46ce-ac0d-efc4ca54ae3e/fefololorijamemix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54f87cd4-6560-401a-80ac-958df256745e/77511205732.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62fa53e0-eb3e-445e-97fc-69cd5e5d2df2/jobuzukisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2057/3082/files/fire_belly_newt_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74add4ea-46a9-40a3-986f-380f5f880473/popogulegisawofeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1181ed66-d920-4499-b7b8-e7192dc5ab3d/mulupazesuwobajapitofopod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d6ee574-439f-4aaf-94f4-ea784cc15407/43976392635.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9513749d-15cb-4ce7-b4a1-9e584c18d8ab/xuxazapilizetapip.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_off000056db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56DB 5584 bytes
SHA-256: 55b4e1239ced3f569a354a9441df5d4d2b53e1dd5aa6ad314c367929fd46ea0d
font_01_sfnt_off000069ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69AB 11444 bytes
SHA-256: f30061902870b5271b738f14715010f89d3d71325289558a5363284839d84275

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