Malicious PDF — malware analysis report

Static analysis result for SHA-256 6001d4347005711b…

MALICIOUS

PDF

44.7 KB Created: 2020-07-24 11:06:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f0c221545a681beeb32c062b36ad8e2 SHA-1: ea8c400927618e0f6777b197df68a02935cfc0f5 SHA-256: 6001d4347005711b8de5a78a59a64d06d542063deb70b50483146607aa049a2d
194 Risk Score

Malware Insights

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

The PDF contains multiple links, with a primary URL identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'Cornell notes template for Google Docs'. The presence of numerous external PDF links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content. The ML classifier 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.com/pify?keyword=cornell+notes+template+for+google+docs In PDF document text
    • http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.pdfIn PDF document text
    • http://files.thecarluccishow.com/uploads/1/3/1/8/131856257/wezubutapexunab-vuxitegaponed-miwosapofukefoj-dokexekoj.pdfIn PDF document text
    • http://files.lymanproductions.com/uploads/1/3/0/9/130969004/171232.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/1/0429/7188/9817/files/75805722182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/62981243029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/78017466591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/98901111741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5383/3637/files/lusisugur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/nisemegatogaxomowazegez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/zuwofofobon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/risumamaduzozivovijaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/lejomalojatutotokuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/87433451021.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_off000070c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C9 5236 bytes
SHA-256: b62550efa3079a562b4a3cb39ccb42a25c053a9cd2c254278f1932b9a15c05b0
font_01_sfnt_off0000827b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827B 10328 bytes
SHA-256: f4477828e85ee118db574667e568340bad88cb36c2d55e9d193dd22a2cd5091f

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