Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c1f3666ef48c2a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-06 20:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52374d45e3b1fca89436f0f16549eff5 SHA-1: 4e3294daf96da870c461fb344e6bd6bc9e369afa SHA-256: 84c1f3666ef48c2ad12f217ada9d1ca12a80092002558df8b1b332874b5dd837
194 Risk Score

Malware Insights

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

This PDF document contains numerous links to external PDFs, masquerading as a free download resource. The primary link, 'https://ttraff.cc/pify?keyword=feudalismo+capitalismo+y+socialismo+pdf', is identified as a malicious redirector, indicating a phishing or scam attempt. The document's structure and the presence of many links suggest it is part of a link farm designed to distribute malicious content or generate ad revenue.

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.cc/pify?keyword=feudalismo+capitalismo+y+socialismo+pdf In PDF document text
    • http://files.centurioncabinets.com.au/uploads/1/3/1/4/131438150/redijakinapusidav.pdfIn PDF document text
    • http://files.stmarysdecatur.org/uploads/1/3/0/8/130813317/6657509a4a.pdfIn PDF document text
    • http://files.ailustre.com/uploads/1/3/0/7/130739076/kenunagi-guwixekeseg.pdfIn PDF document text
    • http://files.youngchaelee.com/uploads/1/3/2/6/132681992/4623363.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/1/0427/9664/6556/files/88544418508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0815/files/java_programming_exercises_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4652/files/26363788976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7165/9414/files/sitevapidibevizizam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9119/0167/files/pdf_books_download_quora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/4774/3651/files/chemistry_and_chemical_reactivity_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1733/8005/files/81098689530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2503/8497/files/kusipebunexelamogetirex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9741/files/nuvemukam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.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 7

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_off000063d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5260 bytes
SHA-256: 18a16a629a3920394d8795fac4dad69c7ad68e08b6d281665d16a51ae9d923ea
font_01_sfnt_off000075bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BB 10896 bytes
SHA-256: 5c6d590dc57f87b65d47fdf052f3a13ebc707f0326f2941ca3bea2f9846d04b0

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