Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e9d41d684acc29…

MALICIOUS

PDF

39.7 KB Created: 2020-08-07 09:20:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f13ef1319ea686e1904b55f9d319b115 SHA-1: d102ce3be6023e9208bdd41948dcb568e46d6643 SHA-256: 59e9d41d684acc296eb08132e3b782aa2bdff92e278a51c3af859fd6e2a60234
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The document body appears to be malformed or obfuscated, but the presence of the malicious redirector and the sheer volume of links suggest an attempt to lure users to malicious sites or manipulate search engine results.

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.cc/pify?keyword=agradecimiento+definicion+pdf In PDF document text
    • http://files.misoagogo.com/uploads/1/3/2/6/132695434/1849453.pdfIn PDF document text
    • http://files.naopuppet.com/uploads/1/3/1/4/131406434/parunegegev.pdfIn PDF document text
    • http://files.coastalsilviculturecommittee.com/uploads/1/3/0/8/130814855/vatupab.pdfIn PDF document text
    • http://files.riddlemusicstudio.com/uploads/1/3/1/4/131453902/894216.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/1/0433/4164/3928/files/sovesasekiwojizupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2953/4632/files/nicky_case_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavijado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6245/9544/files/15115408112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0639/3496/files/wafusazesurepasanoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/bartender_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5789/files/15338547450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0315/0499/files/4625021637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2782/3778/files/tuvusexikipesegamafow.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2E 5256 bytes
SHA-256: a81373d1cd915ba447a3501ddfb1b17d87b001fe8491bbd1d8a939fa3041a50c
font_01_sfnt_off000070fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FE 9820 bytes
SHA-256: f5e7aae075b0e240ab2920db975628231775f008e5600feb19e417c5f9e0356a

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