Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec084a73e6867ca…

MALICIOUS

PDF

40.2 KB Created: 2020-08-12 08:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2faa447ef0eeb85bcfb2671b87fe4e96 SHA-1: 411522f5b11ff99bbda4a26055ad6bc959a16377 SHA-256: 0ec084a73e6867ca50d636394567541841a5ed1e3bdf54ddf42d639251b33f82
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector URL, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The primary redirector URL is https://ttraff.cc/pify?keyword=frecuencia+cardiaca+pdf, which is flagged as malicious. The document's content and structure indicate a phishing or scam attempt, likely using the "Frecuencia cardiaca pdf" lure to entice clicks. No scripts were extracted, but the presence of numerous malicious links is a strong indicator of malicious intent.

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=frecuencia+cardiaca+pdf In PDF document text
    • http://files.kerikeriguitar.com/uploads/1/3/0/9/130969322/wugigenoxisoxebaj.pdfIn PDF document text
    • http://files.roadhogwillysbbq.com/uploads/1/3/1/0/131070294/5483344.pdfIn PDF document text
    • http://files.fairgreenoutreach.com/uploads/1/3/0/9/130969708/kilunan-bideradenoledob-fezafexivadad-zagufep.pdfIn PDF document text
    • http://files.katshelter.com/uploads/1/3/1/4/131407469/8872337.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/1/0433/2240/9125/files/nunoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/butiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9206/6975/files/19636586553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/63457610179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/10000_days_to_years.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1779/5741/files/vuwisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7190/4673/files/majalivune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/36464282606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/75060352659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4189/7110/files/3917060721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/97454009062.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 8

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_off00005c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C42 4896 bytes
SHA-256: f96ba89cb3b3f07e532cbb235ace03cbc7eb619db77e1b362b97356aafe08f3e
font_01_sfnt_off00006cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF3 11744 bytes
SHA-256: 57aa6c9d8faaa0d09ea9a8f2066a8f589ff5861c1e26f687f8c2e6e48e8a5a3f

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