Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca06c9cd0c0deacf…

MALICIOUS

PDF

39.7 KB Created: 2020-08-02 12:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7686c4af9a4fd2d0e3fef7ffec97b098 SHA-1: 769b9b21af9df575da005b6358272133a677c773 SHA-256: ca06c9cd0c0deacffc065cc5f3dae566f8211d2982829f462f12bc5db594ab36
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with the primary redirector URL being https://ttraff.ru/pify?keyword=react+native+cache. This indicates a link farm or redirector strategy, likely designed to lead users to malicious content. The presence of numerous external links, many pointing to Shopify-hosted PDFs, suggests an attempt to obscure the final malicious destination.

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=react+native+cache In PDF document text
    • http://files.therinkbattlecreek.com/uploads/1/3/1/3/131398406/4802581.pdfIn PDF document text
    • http://files.ankefc.com/uploads/1/3/1/0/131070317/8992524.pdfIn PDF document text
    • http://files.foundationschurch.com/uploads/1/3/2/8/132814123/7248922.pdfIn PDF document text
    • http://files.showroom-305.com/uploads/1/3/2/6/132681690/dirudukema.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/1/0433/1995/1513/files/28415034029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1407/6069/files/gurisomunowiwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/vakitadexitap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rafudegilezenetizaxesuvos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/tinatoborerejixux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8897/5774/files/pavolusakokexopajirifiwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4769/0145/files/tejoteparepazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5680/7586/files/38715602008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/fubatazilimosotekatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/27986970611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/63059717243.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_off00005d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D64 4648 bytes
SHA-256: 99a8656de293a94dfe0484c55e3add8f0fab65d76699fad856cbe3330412417b
font_01_sfnt_off00006d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3F 10860 bytes
SHA-256: c8250ee2512d6156e783f15425a36f3664becde8649ffdd3c4996ebed408ec39

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