Malicious PDF — malware analysis report

Static analysis result for SHA-256 0943063b0d944498…

MALICIOUS

PDF

42.2 KB Created: 2020-08-13 22:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f32321dd52dffbe14e7260d664c07e60 SHA-1: 6df440261da0c1a8152a7a3b66c96093094b5574 SHA-256: 0943063b0d94449873d46ad97a15f30c6ec25969de372ab02fc233719ce36506
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on what appears to be SEO link farm infrastructure. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.ru/pify?keyword=hypertension+treatment+guidelines+during+pregnancy`, which is also present in the document body. This suggests the document is designed to redirect users to malicious content under the guise of providing information or downloads.

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=hypertension+treatment+guidelines+during+pregnancy In PDF document text
    • http://taxowudox.marozniashop.com/uploads/1/3/2/6/132681670/8859795.pdfIn PDF document text
    • http://files.theback40museum.com/uploads/1/3/1/4/131438510/c717b321.pdfIn PDF document text
    • http://pigeta.christchapelmaine.org/uploads/1/3/1/4/131407406/sowezomuzazovu.pdfIn PDF document text
    • http://files.torontowolverines.ca/uploads/1/3/0/7/130775921/9687790.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/1/0434/0521/3847/files/closers_survival_guide_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1153/8072/files/bu_jhansi_exam_time_table_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69696378660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/squeeze_theorem_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/90878965197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/21473797758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/befuronaguxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/58316307712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/atmega32_datasheet_download.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 2

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_off00006741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6741 5456 bytes
SHA-256: 03448e121000608b7d37d19d6740e3d00c7d45088fe9833359f8160566da0660
font_01_sfnt_off000079b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B9 10064 bytes
SHA-256: a9bc189734842f0aee25a226514ff2bdbaf73738d7285addf28fa8d39cbcc485

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