Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf9069814b1da594…

MALICIOUS

PDF

48.0 KB Created: 2020-08-07 18:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46e9c928fed19f90a7fd3b024990c91c SHA-1: 404797aa6eb4d0966cd23466f14aa1c396f431a9 SHA-256: bf9069814b1da594a74f1fdea053b50abc351be394ad02956f741964a5a00bd8
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, many of which point to PDF files hosted on various domains. One of these links, 'https://ttraff.com/pify?keyword=conus+medullaris+syndrome+pdf', is identified as a malicious redirector. The document body contains garbled text but also includes the same URL, suggesting it's the primary lure. The presence of a link farm and a malicious redirector indicates a phishing or scam attempt.

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=conus+medullaris+syndrome+pdf In PDF document text
    • http://files.power4lifenow.com/uploads/1/3/2/7/132712225/6540855.pdfIn PDF document text
    • http://files.thechristmasfarm.org/uploads/1/3/1/8/131871850/zaxufepiba-wafotulodamaduz.pdfIn PDF document text
    • http://files.simeoncogswell.com/uploads/1/3/1/8/131856009/2cb79a.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/1/0434/2274/4741/files/45742347294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/mepodiserofumawozilizubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7872/9374/files/38548119165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4374/7990/files/zefevodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/77806620213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2056/files/64873380122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/79470549010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1073/5780/files/12328969554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3773/6603/files/50359420842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4982/5942/files/quantitative_aptitude_questions_with_answers_for_interview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/category_management_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/83492306079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/narexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/algebra_2_prentice_hall_answers.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 3

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_off00007cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFE 5196 bytes
SHA-256: 5872d31bc67f8fe36007e95aff2eca2ef73cc1c63ff2d16ce52c7e21e307a01a
font_01_sfnt_off00008e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E92 10620 bytes
SHA-256: d78533e856b0d1ad1729041c8dfa592fe7ae278b13f3765e16b0ac4567a4803d

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