Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6b6c2a5c26e351…

MALICIOUS

PDF

45.5 KB Created: 2020-10-05 00:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 4b3be696f0f381c0ff118f1aaceb56c3 SHA-1: 64f03a2f8ca26504e9cbddf77b779a19ac8c17b3 SHA-256: 2b6b6c2a5c26e3517ef791a20bae37532cdb51b52ec39cdd940d8e6a83fa193b
194 Risk Score

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://ggtraff.ru/strik?keyword=bru%25C3%25B1ido+procesos+de+fabricacion In PDF document text
    • https://site-1038414.mozfiles.com/files/1038414/15988688218.pdfIn PDF document text
    • https://site-1039903.mozfiles.com/files/1039903/34461189709.pdfIn PDF document text
    • https://site-1039838.mozfiles.com/files/1039838/zuzosotanurur.pdfIn PDF document text
    • https://site-1044301.mozfiles.com/files/1044301/fewuri.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/1/0484/7897/8210/files/nawaselupax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9451/6930/files/71421564723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/94001924322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/85840294444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/1274/3080/files/35899424779.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2573e510-de93-4596-b913-7c9750296caa/96082973140.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5398d7c-fd73-44a2-bcdd-f0ce53f5a1fa/56532549020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d08426b1-a5f0-4922-a87d-c7c25d435e89/gotarojaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78929dfe-d06c-4f10-b10b-4bd161cf90a8/90481707256.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf49cef9-83f7-4dff-ad5e-778876365ae9/28800886939.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b15cb2e-1490-4268-8fe4-8c675e64b842/68612934217.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_off00006eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EED 5516 bytes
SHA-256: 3af0693f3531e7891d15030ecdcb87929865527e18c66c634c62ce1cf9510393
font_01_sfnt_off00008174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8174 11656 bytes
SHA-256: 9a23d22fa30a98e6d712bcc10e57b1f5d588421acb2578cd7d61b9f7cbfd4d3a