Malicious PDF — malware analysis report

Static analysis result for SHA-256 756664e11c45676a…

MALICIOUS

PDF

46.2 KB Created: 2020-08-23 21:55:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8ef2ff373b892a6776c618ce5d11d6a SHA-1: 0ea00d170b80292bae2742375add52539c9c8679 SHA-256: 756664e11c45676aa3cebbf36f887f051e2d6ce08f062e82e9a8882b61085d5d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at `https://ttraff.cc/pify?keyword=all+star+driver+education+book+answers`. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The document body, though heavily obfuscated, also contains references to this URL and other Shopify links, suggesting a link farm or phishing attempt.

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=all+star+driver+education+book+answers In PDF document text
    • http://files.oakmesapta.com/uploads/1/3/0/8/130813906/285d4b.pdfIn PDF document text
    • http://files.bigbrowndogflorals.com/uploads/1/3/2/6/132695387/jesegoxugavudunab.pdfIn PDF document text
    • http://files.jiigulets.com/uploads/1/3/1/4/131454065/miboxorasevif_temubesubokojop_mugov.pdfIn PDF document text
    • http://files.freshsenses.ca/uploads/1/3/1/4/131438055/4188298.pdfIn PDF document text
    • http://files.plants-paintings.studio/uploads/1/3/2/6/132682868/tatomamenolokox_wobumubo_wujawexagu_miruwiri.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/1/0433/9472/8103/files/68909076142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6290/2438/files/13852733999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/petopika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4560/files/36703153964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/interview_questions_on_c_c_and_java_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/wakesitobizawajowuxofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/praxis_ii_math_5161_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/nodat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7358/9663/files/bhakta_kannappa_movie_naa_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4700/0983/files/1453419347.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 5

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_off00007631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7631 5280 bytes
SHA-256: 5d57754e8b15cf1db04ee6aa7e8efec2907547131859dd3b14cbacc1f53c3180
font_01_sfnt_off0000883a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883A 10316 bytes
SHA-256: 3e1d4f0e43c8882319d80b1e2d2ce81577e4d0c36c3cba5690d5e91f64f4be45

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