Malicious PDF — malware analysis report

Static analysis result for SHA-256 f34093724451c282…

MALICIOUS

PDF

45.4 KB Created: 2020-08-19 01:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62f698c9cc4f1626631b7e08fa4ef008 SHA-1: b215da72ea8fe3239e1e4fa2bc0af6cf78177e7d SHA-256: f34093724451c28263deffc7bf72da2d37f8480235641861098b35355d5563e1
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used for SEO spam or to redirect users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=crossword+clue+answers'. The document body, though heavily obfuscated, contains text fragments that appear to be related to crossword clues and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a large number of PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve search engine ranking for malicious content.

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=crossword+clue+answers In PDF document text
    • http://files.manitobarugbyhalloffame.com/uploads/1/3/1/1/131164281/6e2319b.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/1/0431/1125/2132/files/wadonudezuzoxuxejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/muzaloxebomasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/7243128067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0655/6320/files/dicionario_caldas_aulete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/juluwatad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/pigodijoguzarev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3603/2674/files/tiganepufubaluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/99201950610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/81843139110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/what_is._ds_store_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/88322689117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4570/0262/files/baseball_card_price_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7620/5209/files/wepemadaxukowokubajaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/gigimav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4041/files/livasu.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_off000074bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BC 4932 bytes
SHA-256: 1c36f09ce5fde226e8aacc0df4721ad6939626f64392bb9c19602d8f116cbbb4
font_01_sfnt_off00008599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8599 10192 bytes
SHA-256: 9e8a02f0941197fd53bef1f494e06f13045c5455bfdc4fc45ce7210b27dd9b65

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