Malicious PDF — malware analysis report

Static analysis result for SHA-256 7822b72c9ce183f2…

MALICIOUS

PDF

46.9 KB Created: 2020-10-09 06:35:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: f020c43398b390d09a5b142f2943983f SHA-1: df4c327597918f522b0bcd283648f3acea1e8d5e SHA-256: 7822b72c9ce183f21e032efbe1321dfe5afc0f9e42e962c977fb05dcede27c2e
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://gettraff.ru/strik?keyword=cargo+damage+report+sample In PDF document text
    • http://files.columbiadentcenter.com/uploads/1/3/0/9/130969907/438eb0.pdfIn PDF document text
    • http://files.myindependentkids.com/uploads/1/3/0/7/130776035/8537413.pdfIn PDF document text
    • http://files.justjanetministries.com/uploads/1/3/1/3/131379844/lusiz-xumerabepiwoje.pdfIn PDF document text
    • http://files.dallastlc.org/uploads/1/3/1/4/131482996/6802879.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/952576f2-a59c-466a-8c08-4e91348d9955/48753417855.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9770c8e3-0d4a-4cf9-95b2-942fab7cd380/kamerekugoniturinuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4bd37ce-f663-4a36-8d23-29b2bc7934b5/58251477210.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dc6806b-be76-4063-875e-55000aa0c7d7/8367589127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4c0a898-4e9d-41b3-bd00-3aed9dc2c2a2/mefixefenorowabivorido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8096/1186/files/digitigrade_vs_plantigrade_fursuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3071/9895/files/rexurada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/5539/1135/files/westmoreland_county_prothonotary_docket_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3896/6438/files/45370426831.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_off00007a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A72 5184 bytes
SHA-256: 36c40461f2d334250ded8b624701ffd20ed5d39419617e782c4a34021c646a05
font_01_sfnt_off00008bf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF5 10376 bytes
SHA-256: 4dfb3fd4811df63227ed9fa42e3150565df8c10558975f044858ec03b66221c1

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