Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa6ff90fa2f2d69e…

MALICIOUS

PDF

63.2 KB Created: 2020-08-05 01:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee36ae6484c294d53e69db99e13c1cbb SHA-1: 854b64bf6bcd5890f2b23f9b67b2bc3c118d9082 SHA-256: fa6ff90fa2f2d69e0ddec3d8813b506df2acced4f97bff336f9c389ee4d79145
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm or SEO manipulation scheme. It contains a high number of embedded URLs, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=acuerdo+de+ginebra+1954+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to Shopify-hosted PDFs, suggesting an attempt to distribute or obscure malicious content through a large number of seemingly benign links.

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.ru/pify?keyword=acuerdo+de+ginebra+1954+pdf In PDF document text
    • http://files.presbyteryoflothian.org.uk/uploads/1/3/1/0/131070572/wafibotesemasazer.pdfIn PDF document text
    • http://files.dofloristry.com/uploads/1/3/0/9/130969434/rudevunebisavidi.pdfIn PDF document text
    • http://files.pikespenplace.com/uploads/1/3/0/7/130775045/2beb372f206db19.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/1/0431/2439/2087/files/74457714495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/6734139396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/3298326147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/lonusamigodofazab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6246/0577/files/logapixajadorevovolexap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1933/2766/files/libro_apologetica_catolica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/netopetalatilufababup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/67529218800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/fasuvaxapozizuviwi.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 6

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_off0000b5e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E3 5664 bytes
SHA-256: 87fe67f00238fd64bedbf601d0740db3982022a04bdd1a636f4baad88e9f55f1
font_01_sfnt_off0000c944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC944 11592 bytes
SHA-256: 8bb4ee83b797eabdfb95d750e1c403348e0bb62464096ba9572b1a1d38bd8900

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