Malicious PDF — malware analysis report

Static analysis result for SHA-256 118341cc90ede216…

MALICIOUS

PDF

57.7 KB Created: 2020-07-30 13:31:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5ed78c7cb9d330e20fed009df073e7b SHA-1: f2d0e29c7871d88c3092fb2ea30c9ba3ddde7214 SHA-256: 118341cc90ede2161e8a6cf5c1343ab0bcea2813bff6f36eed564a76867044a7
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector infrastructure. The primary malicious link identified is https://ttraff.ru/pify?keyword=english+alphabet+cursive+pdf, which is flagged as a malicious redirector. This suggests the document is part of a link farm or phishing campaign designed to lead users to malicious sites.

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=english+alphabet+cursive+pdf In PDF document text
    • http://files.ronsgameroom.com/uploads/1/3/0/7/130738740/fb4f72f4f0a.pdfIn PDF document text
    • http://files.coffeebythekeyboard.com/uploads/1/3/2/6/132696233/naxug-numijuvafi-tumudixirogun.pdfIn PDF document text
    • http://files.midlanddjs.com/uploads/1/3/1/3/131398250/2300611.pdfIn PDF document text
    • http://files.giorgioceccottidesign.com/uploads/1/3/1/4/131483020/gerijeda.pdfIn PDF document text
    • http://files.markchristophergarrett.com/uploads/1/3/1/1/131163931/5856514.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/1/0428/8957/6601/files/47887698910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1452/0995/files/kotofumagimarum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/28571212844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0412/4571/files/solavewuvonagenate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87960197539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/lefitabamovojofojifon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9206/files/malevosipikalokekigugise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/sedinodadaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/xoxavam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/falalezuguteper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/92475095450.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_off0000a447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA447 5348 bytes
SHA-256: 919f122d818378a7db39830d22e381541db528072f4d6c00acc236816b054af3
font_01_sfnt_off0000b66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB66C 10236 bytes
SHA-256: 8d17da18f6a498968b1a2bb37d4be7999253c9502299d702ae68fea55f62f370

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