Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b59673058247ed…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 20:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7c779bdba7b980d2df2808dfd08d560 SHA-1: 50c7f71bc3d8dd1b6f5d48386839c1b8fa6a34c1 SHA-256: c6b59673058247ed7b056234c3549a57e660203cd3468c8702bdd632e7c68016
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=federal+circuit+docketing+statement+guidelines, indicating a lure to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

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=federal+circuit+docketing+statement+guidelines In PDF document text
    • http://files.rshroff.com/uploads/1/3/1/6/131637255/dikogepik-ragexarufutebe-lawujet.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/1/0430/2100/9053/files/vataremoxijimemogut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4248/5910/files/76353720957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/single_stage_cluster_sampling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7545/2569/files/nenavomukidewub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/lefetudifaxorulamati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6760/files/79322719347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5057/2695/files/13016903294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suxuteregejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/aide_memoire_tuyauterie_industrielle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/5469830817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/80550520965.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 3

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_off000069f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 5276 bytes
SHA-256: 898e9cd5f6ceb32ed17f10439e93b5045121724ed52457228894150bbb738f89
font_01_sfnt_off00007bcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCD 9788 bytes
SHA-256: 12e6cec70517e8552522ada3bce774eb0187d747cf8ef6900becfb5404367d8b

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