Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b63de493c626750…

MALICIOUS

PDF

48.7 KB Created: 2020-10-10 01:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 666fb6cd3e1787eb2880b53e06391f0d SHA-1: bf04f5a04de06756f96476091e0eaa667364948b SHA-256: 2b63de493c6267507cae4e4d4c927bbf3cc5ba679473d267c929f1162ef0cdc7
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=chipotle+swot+analysis+2012 In PDF document text
    • http://dulon.supportmanteau.com/uploads/1/3/1/4/131406717/90307e22f.pdfIn PDF document text
    • http://gipirak.caroline-bell-art.org/uploads/1/3/1/1/131163908/suxasapavikuxap.pdfIn PDF document text
    • http://files.fibrosisinstitute.com/uploads/1/3/0/8/130874189/7264a52b6bee.pdfIn PDF document text
    • http://files.phoenixyouthfc.com/uploads/1/3/1/0/131070483/jupesu_zabidar_sekelodaf_nataveta.pdfIn PDF document text
    • http://bobuxog.dkluxehair.com/uploads/1/3/2/8/132814930/d3bca.pdfIn PDF document text
    • http://files.popculturetragic.com/uploads/1/3/0/7/130775002/3e0840.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/b7765d1f-826b-44a8-812c-daab3f86dd1f/25162364025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3be06d48-8d72-4069-9766-3747410f6ac2/12672081689.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ea084e0-0d48-424f-9709-0bd2137a9a20/57742504580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb6539a5-e3c6-4c02-bd85-9ef2ec926df2/naselof.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_off00008010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8010 5236 bytes
SHA-256: 03bd5044eda038074ba87f85b998c05c3a59a9c6087cfc54b382395e283df240
font_01_sfnt_off000091f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F6 10580 bytes
SHA-256: ff5060640e2870d1d9dfb8bced3b81e7f7d261a8396e80c109d2260debc8a296