Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cb8232cfaa61f35…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 10:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1928fd4d3a7d943ae26c129c8a3d789e SHA-1: 0e6ba9bdcd10f53fb17e2b4552e260df6a1ae113 SHA-256: 0cb8232cfaa61f35520a930c8fed4c92161a5c920fced92516ffac47c77bee9c
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to Shopify-hosted PDFs, and a primary redirector URL. The heuristic firings indicate this is a link farm designed to redirect users through malicious infrastructure, likely for SEO-based phishing or malware distribution. The document body itself contains the primary redirector URL and a deceptive lure related to 'Asics size guide mens'.

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=asics+size+guide+mens In PDF document text
    • http://lukegepun.nutritionrites.com/uploads/1/3/0/8/130814174/6251235.pdfIn PDF document text
    • http://timefon.nolaclay.org/uploads/1/3/2/6/132695578/7876304.pdfIn PDF document text
    • http://files.manadeesboutique.com/uploads/1/3/1/4/131438464/juxupexufa.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/1/0432/7342/0965/files/16346010808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/10307284599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/3013446546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6302/5304/files/24425853982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7298/7046/files/xuwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10588857949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5172/9564/files/resumen_energias_renovables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/rafegitovuwidanamadebub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3184/9128/files/kegulididipewem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1742/1479/files/pugajitoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/manimakafevinefajolexesav.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 1

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_off00005ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCC 4960 bytes
SHA-256: 695c7de2ea19ea61069a408c039f91a9d225fd366aad0129c784259f7e7ae1a8
font_01_sfnt_off00006d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F 14256 bytes
SHA-256: 4d472d6dda9043aa262cb785c644a97d4ca6298e7878266a7df0cf691f7a0772

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