Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73d15667fa5833…

MALICIOUS

PDF

45.0 KB Created: 2020-10-16 15:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 86534d1887f47bb33724d2222cecf043 SHA-1: 69c87d542557d1bfa96404f12472e81aea68f861 SHA-256: cd73d15667fa58335359bce72d90400a43f6875a3b232647454c0f65f197f307
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://ttraff.ru/123?keyword=city+car+racing+apk+mod In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8760368f8fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f897db184620.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f8707fe83c5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5f890d41bb785.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f87150ae017b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369328/normal_5f896dc066ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_5f874d8483f24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5f8952fdcaaed.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/7535962.pdfIn PDF document text
    • https://xogefuvoza.weebly.com/uploads/1/3/2/3/132303221/7b61941c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f87f0a0b27db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f88fb85cdee8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5f8868c49c8ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369305/normal_5f8865bc3d079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f87e58cb11f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375073/normal_5f89627b32175.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f87063bab158.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f895579a421a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f88d87666bef.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/e4f27f89-902d-4b94-99d8-684947425734/42732994845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5b8ea6f-058a-4c49-aa82-f0d143d0a9bf/bajunekugasubile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4abbf42f-1f54-420d-b0e5-e00ea026ca9a/45121549463.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_off000071e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E9 5256 bytes
SHA-256: d113209bb43690ce238e3d51ffde709dfd25633704116944eaa73e1cece6100c
font_01_sfnt_off000083af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AF 10196 bytes
SHA-256: 445ac223e020a88938909d1fc301e921e412ff90e9d7d8c404285fcc8f900d6b

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