Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e08b2726440d2b…

MALICIOUS

PDF

41.1 KB Created: 2020-08-11 19:15:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d3c5547fa71192c1ffcdff0b60b8acc SHA-1: 59f6332bfb5ce020475678f3bbd31f703c105193 SHA-256: 11e08b2726440d2b5d4d287deb4b2e534ce1efdd84434217069898cda7c96c61
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known to host malicious content. The document body and heuristics indicate a link farm strategy, likely to deceive users into clicking through to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a malicious payload or phishing page.

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=associa%25C3%25A7%25C3%25A3o+de+capacitores+em+serie+e+paralelo+pdf In PDF document text
    • http://filonana.nc3family.org/uploads/1/3/1/4/131407222/leduzuzazobib_rubenewoli_sajujebusak.pdfIn PDF document text
    • http://files.crjuices.com/uploads/1/3/0/7/130775310/losodewusev_givigor.pdfIn PDF document text
    • http://files.mrsheridanenglish.com/uploads/1/3/2/8/132814427/vasov.pdfIn PDF document text
    • http://files.janie-gibson.com/uploads/1/3/1/8/131871980/6946831.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/1/0440/3465/4358/files/cabling_network.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3010/8581/files/colloquial_english_phrases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1384/8731/files/88531687051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0486/0328/files/resam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/83049703912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/49308390277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/mawiwiwofibudifala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/fatomezasexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3957/9546/files/17443244798.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 5

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_off00005e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E20 5788 bytes
SHA-256: e9dc3898b49380cc0dff024f3713294ca127afec9ec8532b8561852e640dc000
font_01_sfnt_off000070d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D5 11932 bytes
SHA-256: 0fd6a9f157322f5f25b131cb8f0a3607ec45350f8af4b267338abf418a45d012

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