Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c40a39edb9de4d7…

MALICIOUS

PDF

45.6 KB Created: 2020-10-13 21:07:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: abd5299771af92837368489399ba55d9 SHA-1: 423ca3b2577247f31bad1ab082ab75fb151bd0d1 SHA-256: 0c40a39edb9de4d78a462f26d9c5f13f78368c9d92e8bb315e15f87c66e9d49d
194 Risk Score

Malware Insights

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

This PDF file contains a link farm designed to appear as search results for 'guided snowshoeing near me'. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links.

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://cctraff.ru/strik?keyword=guided+snowshoeing+near+me In PDF document text
    • https://site-1038844.mozfiles.com/files/1038844/dobepevatelibasu.pdfIn PDF document text
    • https://site-1039456.mozfiles.com/files/1039456/14241254296.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/tebavu_mofevuz_punoxibera_gijipomole.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/pejajofedaxevaw_kozadesupuke.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lulodegoner.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e83c03f-d13c-4927-b00c-f4c7cde70060/futixomekoroxawurufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75c750d1-1f99-41d3-911d-ecff696027ef/17069527231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/598c309b-703f-4b86-b9c6-83dc9865f138/74989169367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38580059-a1fb-4dc1-a412-aa4cb77e1359/rifukapobebadawawokuviwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/563d3624-accb-4842-ac33-6c7c5c55a4c5/janovijatuxofeneso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0825/6923/files/dajanogibujenexavisiduf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/9748/3173/files/rerotozodidujisifivutif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1549/6092/files/call_of_duty_zombies_2d_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5435/3570/files/19762174276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5335/8999/files/guxusu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000737d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737D 5332 bytes
SHA-256: 38cbfc736203459823b955a64c9b03824812985fda94b920439146fb707b8dc5
font_01_sfnt_off00008581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8581 10652 bytes
SHA-256: 3b10b2bfc3b211c035d9b1a1abb90665fbfac0eca2089e4238ef62b8a4d9b132