Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebc3f32c14eeb534…

MALICIOUS

PDF

38.1 KB Created: 2020-08-08 05:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63ec6d5fec4d76998d8afd9cdd9ef676 SHA-1: ae8f10eb3c4cb9209a1702c56144d2107904c310 SHA-256: ebc3f32c14eeb534a33645263de5b3fb6d98c67e311ee1793ba995899bf32be8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=catalogo+natura+ciclo+14+2020+pdf`. This indicates a social engineering attempt to trick the user into clicking the link. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on `cdn.shopify.com` and various other domains, suggesting a link farm or distribution mechanism for malicious content. No scripts were extracted from this sample.

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=catalogo+natura+ciclo+14+2020+pdf In PDF document text
    • http://ponejabes.thinkinenglish.org/uploads/1/3/0/8/130874038/kokawodus.pdfIn PDF document text
    • http://files.metroeastinterfaith.org/uploads/1/3/0/9/130970009/linuwanewopa.pdfIn PDF document text
    • http://files.epathletichalloffame.org/uploads/1/3/1/4/131438324/df990e994.pdfIn PDF document text
    • http://files.mymythiclife.com/uploads/1/3/1/6/131636692/922807.pdfIn PDF document text
    • http://vurazo.joanneeve.com/uploads/1/3/0/8/130874478/xazekukukov-zagubologog-nosizo.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/1/0434/3798/1852/files/u_bahn_berlin_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/pesozukijab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/veseguvokararewedeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5080/2081/files/85330743884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/98262485510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4341/files/88670647312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/fegukakaragupur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8801/files/belurek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/92464879635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5385/files/miramamolepesowufosuves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7687/7478/files/best_barbarian_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/zonasejibufovuma.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_off0000555a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x555A 5464 bytes
SHA-256: a3b798ed49ac4460f1c2a772c35dae7d90f60e53eedfde641cd21bc1be71bf1d
font_01_sfnt_off00006807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6807 10792 bytes
SHA-256: 10689406fe45e20ff93085471c83d3de332efa0fca097d7ed13b705b3edac8f1

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