Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b110a5f9579b32d…

MALICIOUS

PDF

42.2 KB Created: 2020-08-16 18:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1ddf7d6804ac6c184e92fdfcece4457 SHA-1: 604dc7e693f8b28b2b6bb35fe504e3adebac6e24 SHA-256: 5b110a5f9579b32de421d48995d84614bad19677a859738a384ad7d5070152a8
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a known malicious redirector at `https://ttraff.ru/pify?keyword=aumento+de+labios+de+forma+natural`. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam lure. The presence of many links to Shopify-hosted PDFs indicates a link farm designed to improve search engine ranking for malicious content.

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=aumento+de+labios+de+forma+natural In PDF document text
    • http://files.allensinor.com/uploads/1/3/1/8/131856574/0662143d1f.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/1/0430/4614/2114/files/95441091266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2231/0811/files/petesamesudajelagubaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/catalogo_cable_belden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/gomozigeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/95239763151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3846/2372/files/ready_player_one_online_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/little_league_baseball_score_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9345/0134/files/piluzofamisinozanatumixat.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_off000065fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FC 5184 bytes
SHA-256: 45e9273905246604678feaa9c14f47869131f3be73368a7797e9e865592c4fca
font_01_sfnt_off0000777e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 10912 bytes
SHA-256: 59a01361c9336cbfdf08b323b3d0c4689ccfc0fa6384a32ef23f6f23842c41c6

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