Malicious PDF — malware analysis report

Static analysis result for SHA-256 17dde43321adca3b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 19:41:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2e8c8ec755a4929ade5040cb4ad68de SHA-1: 172f6b197c8431d2a92f469ec257a7e6402b6f96 SHA-256: 17dde43321adca3be1ffafc5402785054cda761364a4c3ce9b793998f76767c1
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though partially corrupted, contains text related to 'Las reformas borbonicas' and includes the malicious redirector URL, suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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=las+reformas+borbonicas+cuales+fueron In PDF document text
    • http://zekinila.dudleysafes.com/uploads/1/3/1/3/131380005/25c8baad520.pdfIn PDF document text
    • http://files.shop-at-revived.com/uploads/1/3/0/7/130775760/9420624.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/1/0428/5648/0935/files/sopewikazigobuvudabof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/systems_understanding_aid_9th_edition_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/84659469279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/41996986552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/boulder_county_election_results.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/94555185674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/16386112523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5298/8566/files/56459034567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9408/1687/files/affirmative_tu_commands_spanish_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4231/4152/files/habit_burger_grill_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/physical_science_grade_11_platinum_textbook.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 5

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_off000065b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B5 5108 bytes
SHA-256: 20b9c093d609f3115e8497eaff49e8338809a176d43f8832d3b350947dc45843
font_01_sfnt_off00007704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 11184 bytes
SHA-256: ad4016a0d0f5ba28fc2566061e73cf2d04e50444a2cad7994c9534c3babbbefc

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