Malicious PDF — malware analysis report

Static analysis result for SHA-256 296f4f5789124e1d…

MALICIOUS

PDF

53.4 KB Created: 2020-08-14 00:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49f78d5ed1036b39318a0ccf4a90b70e SHA-1: 91a6fd1738f3782968b78d73a2f794483620f7d4 SHA-256: 296f4f5789124e1dd0f7b2691256abc8e658cd790a39d155c8fe4ae79ab150ac
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=benign+positional+vertigo%2528+bppv+pdf. While many other links point to benign Shopify domains, the presence of the redirector suggests an attempt to obscure the final malicious destination, likely for phishing or malware distribution.

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=benign+positional+vertigo%2528+bppv+pdf In PDF document text
    • http://liwewal.episcopalyouthcamp.org/uploads/1/3/1/3/131380429/8509820.pdfIn PDF document text
    • http://files.pharmavetsa.com/uploads/1/3/2/8/132814276/9259902.pdfIn PDF document text
    • http://files.danawensley.com/uploads/1/3/1/4/131483153/9e5f3.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/1/0433/9105/8083/files/canon_rebel_g.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6544/1430/files/bidurolobiwajufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/83022187298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/18125764360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/fipovoxepisaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/tununulagidolaxewajuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/neet_chemistry_formula_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3263/files/1749109066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/55879329354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/wejafobesudukawogonomudoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/fibutiliwodemevamuvud.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_off00009216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9216 5536 bytes
SHA-256: bfb6f88d8cb4201e705d783b254b166c554dfc2e21cb602773661ed07ec5cdf9
font_01_sfnt_off0000a500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA500 10404 bytes
SHA-256: ff98b9b2fb6331aaa70345ef42026f234fd09d1faa21fa334ab4eb38aadd5362

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