Malicious PDF — malware analysis report

Static analysis result for SHA-256 797cd0a50026f145…

MALICIOUS

PDF

38.8 KB Created: 2020-08-16 19:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b209991656c3802d26d0a86a1a2e4d43 SHA-1: 116ec4d98d2a8b6285175f8e39d14993e3cd9fee SHA-256: 797cd0a50026f145d6ccbd1945d9cf3c5e6167d44322d4c2a2fd462e7864d947
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.com/pify?keyword=aisatsana+aphex+twin+sheet+music, which is likely used to obscure the final malicious destination. The document's structure and link farm suggest a phishing or scam attempt, masquerading as legitimate content to trick users into clicking malicious links.

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=aisatsana+aphex+twin+sheet+music In PDF document text
    • http://files.bestdayeverevents.nl/uploads/1/3/0/9/130969053/mosanera.pdfIn PDF document text
    • http://files.tradewatercandles.com/uploads/1/3/1/4/131438268/de2b8a.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/1/0429/9672/7961/files/nufifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepikopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0542/5310/files/62657530136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2686/6599/files/37278903204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/francis_carey_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3431/files/kotupifuwevivilexewemasaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/joputativufej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/96790860931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/baixar_capitaes_de_areia_em_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/notes_of_chemistry_class_10_chapter_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6749/0975/files/55826384765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/fetapatejitulomuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/14009677504.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 5

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_off00004bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFB 5196 bytes
SHA-256: 1c2e6a53a0ffedff211289bb106c22c4c4129a21cefd7d471a322f4f396c1a69
font_01_sfnt_off00005d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8A 14872 bytes
SHA-256: 6b287c7c5772db72d27311f1073d01e81987b5cb370c99a2a636cef8d7d17e19

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