Malicious PDF — malware analysis report

Static analysis result for SHA-256 567b1b95d98b26a9…

MALICIOUS

PDF

44.8 KB Created: 2020-08-13 03:04:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 601329d14de2d586ddf4c6e6a30950f6 SHA-1: 023c5fc79b3db49628e22f1d0748b53350d6367a SHA-256: 567b1b95d98b26a99f5afcf2e5fbcceeb43ff42ac400ad8738b0be475f23457c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.ru/. The document body, though partially corrupted, contains the same URL and a title related to logarithms, suggesting a lure to disguise malicious intent. The presence of a link farm heuristic further indicates this PDF is part of a larger SEO poisoning or malicious redirection scheme.

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/wb?keyword=how%20to%20use%20logarithm%20and%20antilogarithm%20table%20pdf In PDF document text
    • http://files.drjasonwilliams.com/uploads/1/3/0/7/130740510/finapu.pdfIn PDF document text
    • http://files.standrewscathedral.ca/uploads/1/3/1/8/131857756/4fa7c783.pdfIn PDF document text
    • http://wofatipa.excaliburvoices.co.uk/uploads/1/3/2/7/132740435/95e29a8b.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/1/0429/6297/6921/files/fipidezemotutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8683/4851/files/laviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/27722383827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2582/3904/files/vizovavemazipejaxoter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3720/2344/files/55123449467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/spices_name_with_picture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7623/6950/files/27853966582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8644/4696/files/castrol_power_1_20w50.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/brimonidine_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/diccionario_biblico_reina_valera_1960_descargar.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_off00006fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE6 5648 bytes
SHA-256: 6eaf02cfabb68880b698f1443fc23c574e299be9fa33657d71c8dfc3f5363716
font_01_sfnt_off000082fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 10332 bytes
SHA-256: 91195cabf622d3446d21c7fe33ee61b1d038ed3e13699dc4fce9050412eecf6c

Open this report in the interactive analyzer, or submit your own file for analysis.