Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2196a08dc2842e…

MALICIOUS

PDF

35.9 KB Created: 2020-08-19 03:17:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e431e33eae611e38fd5ed7dd79b28e15 SHA-1: ac34253fba4d5f6b2d02de14b9842c45626d73a9 SHA-256: 3b2196a08dc2842ebcc211a9abeab5352aedff3aa7163e2e8901f2ad77a9ade8
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to various PDF documents, many hosted on Shopify. This pattern is indicative of a link farm, potentially for SEO manipulation or to distribute further malicious content. Crucially, one of the embedded links, 'https://ttraff.ru/pify?keyword=bhojpuri+video+film', is identified as a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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=bhojpuri+video+film In PDF document text
    • http://files.mariescott.net/uploads/1/3/0/7/130738637/7299360.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/boolean_algebra_mcq_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1852/5599/files/mla_format_website_citation_multiple_authors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2012/3285/files/bamufunatuxena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/jinedafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8150/4670/files/ece_interview_questions_and_answers_for_freshers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/87233754860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/80866811411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2682/4863/files/67887789394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/razenusuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/gapebenakekajobadun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9697/files/15548657671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43FD 4776 bytes
SHA-256: fb1f94d1c46721ecf18cea10418cbb62d5da5fa947912b2a54f95963734d4782
font_01_sfnt_off00005442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5442 9568 bytes
SHA-256: a5d07a32bae8f64c2e74a8237b0ab79b32b95854e05ccf23c3a9832f4eafa4ec
font_02_sfnt_off00007509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7509 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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