Malicious PDF — malware analysis report

Static analysis result for SHA-256 334295de4f82d4c9…

MALICIOUS

PDF

43.8 KB Created: 2020-08-04 14:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7a75cf86fea57f71987849f06bdba9b SHA-1: 5a076cfa82195d31914020632ef72ed10c87c51e SHA-256: 334295de4f82d4c99ea365cf88283dddc0baa4624607e508ead438cc8c85f8ca
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=wordly+wise+3000+book+5+lesson+8+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to improve search engine ranking for malicious content. 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.com/pify?keyword=wordly+wise+3000+book+5+lesson+8+pdf In PDF document text
    • http://files.pbmusictuition.com/uploads/1/3/1/4/131409200/5103868.pdfIn PDF document text
    • http://files.tapestrymft.com/uploads/1/3/2/6/132681409/wojuvidito.pdfIn PDF document text
    • http://files.composedbycanadianwomen.ca/uploads/1/3/2/6/132681452/c543d.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/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0113/4747/files/52584545577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/45483267721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/33914804201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/vemasepakapaxuxigorerab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8803/5486/files/nemasipaluneko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/1805989733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/gabosokavaxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/gekirokuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/an_introduction_to_behavioural_economics_wilkinson.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_off0000616a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616A 5860 bytes
SHA-256: e6830ed5e0182b748a5eb4543f9d9947e334c55973faf02d48ffeaa0676d5f63
font_01_sfnt_off0000758d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758D 14372 bytes
SHA-256: ad1595d3dd6a2ca21a6e0c8effec822551c7107ed056896826152010a6b8f648

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