Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d0e623148372422…

MALICIOUS

PDF

48.1 KB Created: 2020-08-15 00:41:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddd4a3f0f1d827e47bba85a3c2299f44 SHA-1: bc7f7b16449f0ef3d5360791508ef63c6ff6e9d1 SHA-256: 4d0e623148372422aa7804617d3c8d7c3de32ad505674d623e5860ed59112239
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a link farm with numerous external PDF links, many hosted on Shopify, suggesting an attempt to artificially inflate search engine rankings or distribute content. The ML classifier also strongly indicated maliciousness. The presence of the URL https://ttraff.ru/pify?keyword=cci+de+bayonne+formation is a high-priority indicator of malicious intent, likely serving as a gateway to further malicious content or phishing pages.

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=cci+de+bayonne+formation In PDF document text
    • http://files.shynelleagaran.com/uploads/1/3/0/8/130814907/a319b6923e659.pdfIn PDF document text
    • http://files.hopeforhispaniola.org/uploads/1/3/0/7/130775384/wozeminibanogojepuwi.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/1/0431/9825/1165/files/23025448370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1510/8765/files/nutemulago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8453/0343/files/mp3_player_juice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/82732085577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4439/7468/files/39277492627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/9822312003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/35524137478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6256/5795/files/jarikewoxosopubavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/24466691126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/adam_sandler_ode_to_my_car.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/calineczka_test.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 6

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_off0000787c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x787C 5104 bytes
SHA-256: f4b9f005e78179e0afb9b034afac2f7c43c9dc1c259f57a4e4792091a68f79ef
font_01_sfnt_off000089b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B8 13000 bytes
SHA-256: c47e41f5e75244daebef799bdf5d6df8eef90e4ccce8578b4c2f97b31b2b4c1b

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