Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a9d2048c8d2084f…

MALICIOUS

PDF

36.4 KB Created: 2020-08-02 05:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 811e5af7a3d835e21826552a64c451e3 SHA-1: afcfdee9272cbbd4538d9e4a1b0d5254fe3c7c4c SHA-256: 5a9d2048c8d2084f13c1063cbe300d6e5ec6bf79d5f4e34de2c6dc4b9b1ff836
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.ru'. The heuristic firings indicate a malicious redirector and a link farm designed for SEO manipulation, suggesting a phishing or malware distribution lure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=hotel+vendome+towels', reinforcing the malicious intent. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=hotel+vendome+towels In PDF document text
    • http://files.scallowaymuseum.org/uploads/1/3/1/3/131379042/nigij.pdfIn PDF document text
    • http://files.theanatomistfix.com/uploads/1/3/1/4/131438899/zoziwisosivadivojeg.pdfIn PDF document text
    • http://files.hayonpark.com/uploads/1/3/0/7/130740513/a21f543e29d4fe.pdfIn PDF document text
    • http://files.thesbkshop.com/uploads/1/3/0/7/130775698/8450251.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/1/0434/6858/7174/files/us_stock_market_holiday_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/mutuwozupagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/jibuxifasiwiwek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/34688828586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/4741216720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/62515425366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/69420246052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/72129709553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/veraluxiwowekidujiwamis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/namujos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/26213681137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2598/9785/files/37960082940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/relinebidexoganakimepil.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_off00004f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4E 4780 bytes
SHA-256: 5723652f70b01158453f46afcaa1723044c6ba351d481a1c3c405a26a91c1ca5
font_01_sfnt_off00005f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8E 10976 bytes
SHA-256: def2071d4896938cb05a7345a368db3713ff749b1440d1ad4e217a6843392830

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