Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d88a982d60a9cf2…

MALICIOUS

PDF

52.3 KB Created: 2020-10-16 23:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: f4efbbc457dcae34828b3f5081eb3830 SHA-1: 6ed3f6ded8d1f6930a718b085a9c40da763bdac6 SHA-256: 5d88a982d60a9cf2b380ba80a2f693048e9881e10d7c3e08016230be4a8641e3
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.link/123?keyword=coyote+hunting+guides+ny In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_5f884d73dc0c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8754071a669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_5f888a26e99f6.pdfIn PDF document text
    • https://wovasemuzusalej.weebly.com/uploads/1/3/1/6/131636629/jogikozidonedozefu.pdfIn PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/xodasoniroduga.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/vifotatilaw.pdfIn PDF document text
    • https://kuguzozivef.weebly.com/uploads/1/3/0/7/130739994/c0725157b9f0.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/1/0428/3973/6487/files/nununilonotuvebepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7686/1086/files/resistencia_de_materiales.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e77d2a5-049e-401f-a18b-53f8a8b0b648/77282270938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b34e51c-f77b-4a11-ab88-1398f0074354/duzopefefid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5495/6695/files/tesla_light_bulb_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/83520003907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa98137e-3ae6-43a3-9da8-10ea094127d4/16449616389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff6eb479-83e0-41c5-b430-41694412403f/pidoxexoxowotibejogaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bf3b193-62a4-47af-91eb-5466e9b4c033/76448341345.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_off0000848f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x848F 4756 bytes
SHA-256: c6d2b29fd1b0587da77c9268926b0d0994703cb05a16d7f78379d2cd9cc8f8e9
font_01_sfnt_off000094c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C2 15224 bytes
SHA-256: b825284d4fbfe3a845d76d3a0295efeeb993a00fc969f2b651b601c9f6b9b855

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