Malicious PDF — malware analysis report

Static analysis result for SHA-256 b35f537eaf77ed24…

MALICIOUS

PDF

38.8 KB Created: 2020-08-18 21:59:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 535b819839c339b2ed68a4245ac3c141 SHA-1: 5fa08f04b775d4b1e77d78058354918d6dd3998b SHA-256: b35f537eaf77ed246827a8413bd4b4e5534fcc7ade24683307107020b54142c7
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised with keywords related to an NFL injury report. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify. The primary malicious link is https://ttraff.ru/pify?keyword=injury+report+nfl+week+1+2018, which is a critical finding indicating redirection to malicious infrastructure. The presence of multiple external links suggests a potential attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes.

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=injury+report+nfl+week+1+2018 In PDF document text
    • http://files.redlinefishing.nz/uploads/1/3/1/4/131482953/lanoxo_mesaxogapo.pdfIn PDF document text
    • http://files.stmartinoftoursomaha.com/uploads/1/3/1/4/131406403/ludinusifebafim-xofisetas-sudido-logekaz.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/1/0432/0939/2285/files/tewedupisuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5158/0568/files/mikilopuwagibejofoteka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4143/9400/files/gre_probability_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/mewaburide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3759/7591/files/manajemen_sumber_daya_manusia_simamora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6361/4369/files/5059499969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5497/3606/files/after_effects_title_animation_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/paletipir.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 1

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_off00005954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5954 5300 bytes
SHA-256: c89ca8e407c5611526f9db9bbbddc3817b1d20b6519d0ab62ef48c7b50a1707c
font_01_sfnt_off00006b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B98 10252 bytes
SHA-256: be4109c837c540e15e877404c8741491706fb1daa0b08c88b6a8375210d48b55

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