Malicious PDF — malware analysis report

Static analysis result for SHA-256 f130bf18f856019f…

MALICIOUS

PDF

36.8 KB Created: 2020-07-24 20:55:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dc001c65010679ed965c0ca79a8c67f SHA-1: 118cd1ba602ac4da970bbc69b6567087bd478d6d SHA-256: f130bf18f856019f3fd71cfae63ba0837f3989b703621a4a44fd832a62f6807e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, appears to reference 'Acids and alkalis ks3 worksheet tes', suggesting a lure to disguise malicious intent. The presence of many external links, including to Shopify, indicates a link farm strategy to distribute malicious content.

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.com/pify?keyword=acids+and+alkalis+ks3+worksheet+tes In PDF document text
    • http://files.anschutznorthamerica.com/uploads/1/3/2/6/132695472/duvoso-noruluwexalir-gapoj-gutewiwiweg.pdfIn PDF document text
    • http://files.athenianenterprisesllc.com/uploads/1/3/0/9/130969211/degolodawan_xugulomadukadu_pumipemigupoj.pdfIn PDF document text
    • http://files.wildchildcoffeeproject.com/uploads/1/3/0/8/130814611/1875165.pdfIn PDF document text
    • http://files.audienceseurope.com/uploads/1/3/0/7/130776142/sigusupetoromovomo.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/1/0432/9635/8565/files/74901927755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0898/files/pedibija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/66094728650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/57754782588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8070/3382/files/dolapebomitudof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/jodujojewezizajumeximuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/linifogudavosebaduxezak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/gebosipexixodifejoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4324/0606/files/lepap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/funutojukogobalefobakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/2635522223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/51371651741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/18314701271.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_off000055da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55DA 5124 bytes
SHA-256: 156d861eae072d97b4a53d51bcbf578cf9bb2d05c0216969a8dce8c594610c76
font_01_sfnt_off0000673c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673C 9004 bytes
SHA-256: b4d3893ea0cd24d3bfe8d6eea9b9e6585915549f2bfd44375180dc8e749f7ba0

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