Malicious PDF — malware analysis report

Static analysis result for SHA-256 10a04fde646ddfa8…

MALICIOUS

PDF

102.6 KB Created: 2020-07-31 06:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93a5bdb60c4b8e0ffac82968ee5df182 SHA-1: 206b690e1aeeee054e1c4b423b27f4c670e489cb SHA-256: 10a04fde646ddfa894ff3be43577c63da70e743c5078ad8891feef6272329cd6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which point to redirector infrastructure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate a strong attempt to funnel users to malicious sites. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the nature of the links suggests the document is designed to download further malicious content or lead to phishing pages.

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=antibodies+structure+and+function+pdf In PDF document text
    • http://files.makeastatementjewelry.com/uploads/1/3/1/3/131398281/7627175.pdfIn PDF document text
    • http://files.nowwhat-services.com/uploads/1/3/0/7/130739251/8898280.pdfIn PDF document text
    • http://files.verticalmilerally.com/uploads/1/3/1/4/131438397/3163382.pdfIn PDF document text
    • http://files.tigerseyejournal.com/uploads/1/3/2/6/132681670/69828.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/1/0437/7421/4306/files/84764095321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/2569337279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/wujagajorisonujupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8764/2267/files/papalewil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/matofifabudetitifili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3451/6376/files/sajowek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43396058945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/64763595446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/47699334925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7446/1589/files/pogumixuparilowowale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2155/7150/files/rojovob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/kubujapapekawatat.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_off000155f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155F2 5128 bytes
SHA-256: a1845c46d7073cd1ff18b99d792c2285067946c3aba56b60f5bd3ed35068c019
font_01_sfnt_off00016761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16761 10920 bytes
SHA-256: 0ba454230089268054fc8895968fa55ed785765f4461e67a4b28dea7fe124057

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