Malicious PDF — malware analysis report

Static analysis result for SHA-256 427814f8c01ca592…

MALICIOUS

PDF

46.9 KB Created: 2020-08-28 13:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24f9f00867aa6cd2a330e55b7db598af SHA-1: 8a64bd57ba5ed3b236e5509cd38a17241e660e16 SHA-256: 427814f8c01ca59207765397525dba0cb55c59a88fbaf78893a2f5f91846056e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm pattern, with numerous links hosted on 'cdn.shopify.com', suggesting an attempt to generate traffic or distribute content. The ML classifier strongly flagged this PDF as malicious. The document body contains text related to 'radial nerve entrapment' and a URL that appears to be the same as the redirector.

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=exercises+for+radial+nerve+entrapmen In PDF document text
    • http://files.theeimersfoundation.com/uploads/1/3/0/9/130969472/7701445.pdfIn PDF document text
    • http://files.thenaturalgrind.com/uploads/1/3/0/7/130776327/tafude_nowumopev_dunaxavi.pdfIn PDF document text
    • http://sefakowu.frciola.com/uploads/1/3/0/7/130740074/limajifubix.pdfIn PDF document text
    • http://votivu.australian-spirit.com/uploads/1/3/2/6/132680835/2dfadd8dfe30.pdfIn PDF document text
    • http://files.ovhealthcenter.org/uploads/1/3/1/0/131069934/wudujo.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/1/0431/5453/8656/files/shakespeare_the_sonnets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8838/0058/files/kisuxilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5777/3725/files/kufaxudomazodokevimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/pajevimumetusawudoputewul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/kezumituburaruje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6343/files/hydrant_flow_test_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/78491908366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/9182/9412/files/76191681507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1817/0018/files/13837856395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9034/9975/files/60509253128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/40810750538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4017/7314/files/21321461720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3412/3160/files/secret_path_shawl.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_off00007917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7917 5384 bytes
SHA-256: fcf929590aeeee9d33e6cf743bd4770bb0622c7e1bc788b1d62f5f3fb98fa9ac
font_01_sfnt_off00008b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B58 10192 bytes
SHA-256: 2a87ee7c2774e6a85234a9ab1676bc1f839e7459c455caabfe13c8423ded68e1

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