Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d83b8c805dd97c5…

MALICIOUS

PDF

50.2 KB Created: 2020-10-01 21:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 6347ad698342f5f43b23fac82e96ae3c SHA-1: a9ef585fd4e2374eeb8526aad72ce88dea74d35f SHA-256: 5d83b8c805dd97c562fd575b8ca70271cc86545e328920421a86a220df347ddb
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=asma+pdf+gpc+rapida In PDF document text
    • https://site-1036644.mozfiles.com/files/1036644/68194152524.pdfIn PDF document text
    • https://site-1038788.mozfiles.com/files/1038788/2356693212.pdfIn PDF document text
    • https://site-1036950.mozfiles.com/files/1036950/83484624126.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/e047c01c-8b4d-42dd-8535-c4bcbd79d758/zonodawerikuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6637975-35ce-4737-b079-22c8e9c790a9/galinaxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c9a1e7d-b291-4054-ac61-ceb81c206127/lefuxopenijoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ae90093-2e85-47dc-8160-c9f369c05597/93203762437.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b0e9e5-11c2-43bf-9b0e-7cfb921c95ea/43949580665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b544053-1cd2-4780-9446-9e5ee4793752/jikiremo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35b3f61e-ba30-4496-9018-e36ca8c1b4b6/88913408970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d022ae2-b4e7-4642-9a13-1b154260559c/50444017200.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bf61c6d-1329-4d4d-bf75-88fb8fa31ed1/18570790532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5a160a1-0b32-44ec-9555-bebc4f17a931/taluseweso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD4 4804 bytes
SHA-256: 9ed75c65e89c9bfa9be269353b90a167db56a118873689d001fd4f2666689775
font_01_sfnt_off00008b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1B 10264 bytes
SHA-256: 50853db9d2f80b9ff3339806b9a7cd66e2ac1d964a8474c81405454dd9cc1749
font_02_sfnt_off0000ae3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE3B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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