Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87393acc638d67c…

MALICIOUS

PDF

58.8 KB Created: 2020-08-04 01:54:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0734b86f3b0124790b2b300039fcd6a SHA-1: c309636ab5ae53ec4b0d4985054ca2ae83c4a3c8 SHA-256: f87393acc638d67cab32ab8801186a3e1e5331b1c87c175795a733ac10234c4a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'marketing business plan sample pdf'. The presence of numerous external links, many pointing to Shopify domains, indicates a link farm designed to obscure the true malicious destination. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=marketing+business+plan+sample+pdf In PDF document text
    • http://files.jemeenabellydance.com/uploads/1/3/0/7/130776791/a981f0b061a7.pdfIn PDF document text
    • http://files.baseballforyouth.com/uploads/1/3/1/4/131410094/d01b94f17819.pdfIn PDF document text
    • http://files.bakedbounties.com/uploads/1/3/1/8/131857334/1418087.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/1/0433/0687/7080/files/47948794002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7741/files/ascaridiose_traitement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/67714521522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/virokexope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1829/5195/files/61207321439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0227/3697/files/lisijivodalumekunetunuvuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/zafuxive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/fezibotevexigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/calculus_early_transcendentals_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/saints_row_2_unlockables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4578/9600/files/kekimopepokamizis.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 2

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_off0000a6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6CE 5568 bytes
SHA-256: 24fcdbd87f8d420b621833c8d7fa799431cc5b9b48adbfbf50c3514e9044c812
font_01_sfnt_off0000b9b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9B5 10604 bytes
SHA-256: 59ff2bcb0de7af91323d52e5e736c10efbd02a80be7d68722f6a733aaaef9582

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