Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ff503a229372fb7…

MALICIOUS

PDF

41.3 KB Created: 2020-08-22 16:38:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f371fd1073de2c210ebc4e21c9a18754 SHA-1: c1c78b85036447be042b12cace50789f78b0219a SHA-256: 6ff503a229372fb746a7adf164a1ebcf1bd6330f73d073246c41bde863d2e576
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to an SEO redirector, which in turn points to malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=ondansetron%2528+zofran+davis+pdf, which is designed to lure victims with search engine optimized content. The document body itself contains obfuscated text and references to the redirector URL, indicating an attempt to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=ondansetron%2528+zofran+davis+pdf In PDF document text
    • http://fatorobaj.gypsygirlsportfishing.com/uploads/1/3/0/8/130874457/xevopoxojuza.pdfIn PDF document text
    • http://files.artoftragedy.com/uploads/1/3/1/3/131384145/8608770.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/1/0427/4189/1238/files/rokivixuvipolafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/wujojifulumorilexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8289/9871/files/16570012478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/bertrand_russell_the_conquest_of_happiness_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/bump_bot_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/62400381360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/nokaguzaseviduru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8587/9713/files/34989530739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/write_a_note_on_conceptual_vs_empirical_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1579/7916/files/vijupefigonemuxafitexer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/nuwefebuvadizum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/benim_hocam_tyt_video_ders_notlar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6563/8050/files/5th_grade_math_book.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 3

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_off0000635c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 5216 bytes
SHA-256: 6e87687fa750132a0336e65b3c18498ed1da73eee6160123b54f75164ca884ec
font_01_sfnt_off00007544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7544 10304 bytes
SHA-256: 224bf034c70c7fef0d096a0b507026d1cb4b5324afcd47bcdf3b5936e933b78b

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