Malicious PDF — malware analysis report

Static analysis result for SHA-256 42572c02a8e52a96…

MALICIOUS

PDF

43.5 KB Created: 2020-10-30 23:07:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: c12b7b31880e4ddf2940a95abcd30720 SHA-1: 8505fc8006dc3ba49345c8c3be32dca78883dac1 SHA-256: 42572c02a8e52a961dd167ab49ca809cbb0426fe6139711e06d9d1ccd2b0132b
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://ttraff.com/123?keyword=conversi%25C3%25B3n+de+kilometros+a+millas In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389090/normal_5f9a0db75e42f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5f975fd425a5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367937/normal_5f882b1f41fba.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/bc1eda8a-85b1-4212-a848-ac0303dfac54/93652929336.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bbdef8c-f51a-4189-ba69-0ff9ed66ef27/16960966123.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be821e99-3feb-40d1-962e-96e09590978c/bedikedax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91ea85e3-13b8-46da-ac9b-dfe2c2196744/17653258943.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/pigavoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93e61fb6-875a-4187-8811-cdc251b058ce/13385619897.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d73f4c5-1d63-4be7-9e71-f50d32fd67f1/wowanawonopo.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_off00005bfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFA 5040 bytes
SHA-256: 6ded7c64d1ef9c98c2cc233b8388a1a156833a8558bae3b1963c23a715558a44
font_01_sfnt_off00006cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC4 11080 bytes
SHA-256: b58268bf25c69ec8543258c01ccd6445071b68dc51b075f0bbeda2f53a6ae354
font_02_sfnt_off00009117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9117 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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