Malicious PDF — malware analysis report

Static analysis result for SHA-256 19186d1bb9caa24f…

MALICIOUS

PDF

46.2 KB Created: 2020-10-30 05:48:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: a62f948a04d8e490b28a8d14a56c7ad4 SHA-1: 81334b5f7ef6233233f87a974d5dd115c2b641c4 SHA-256: 19186d1bb9caa24f739e5baeac78dcf2fdc4a67663dabc9a9afca2619b672a86
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://cctraff.ru/wb?keyword=lg%20direct%20drive%20washing%20machine%207kg%20user%20manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365661/normal_5f87137e7b47b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373998/normal_5f8c67f17a938.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/sobosinono-zegemule.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380876/normal_5f98e4236ee6a.pdfIn PDF document text
    • https://nukubutoti.weebly.com/uploads/1/3/2/3/132302768/5378404.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/07a1fbab-ba79-46f0-9759-fd3bef175ff3/40353639146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db5b35fa-16c2-426e-b82f-7cddc17ff91b/98275187562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a250708b-6279-436e-8e55-379e78479bd4/6146102504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c719ffe-8b38-4f54-9fca-07cc1c39aab8/zusenatajugosa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02ff727f-2b31-4e50-9ec8-1ad4699eea0e/dibosasulexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dad4b3b-a528-4ae5-a8ee-540b7aabc53f/dados_das_conejas_de_juliaca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6c2e2c6-8a81-4f4c-aa32-51ce53b36a72/55226365854.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a41688e-02aa-4453-8745-c006597b25b9/22304452017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fa245ed-e650-428c-90d2-0b8b22ca8e7f/69732910796.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_off000073fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FC 5588 bytes
SHA-256: 51be3d6db43d7d91a82580f132dd98103e45c9913b5b8607c8eaafeab1681aa0
font_01_sfnt_off000086f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F4 10832 bytes
SHA-256: c8bc2170945263f6a8fb1330e76746642c1770d49c464f5c4c5f6ab02ac50fad

Open this report in the interactive analyzer, or submit your own file for analysis.