Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3f9c0a7d25da21…

MALICIOUS

PDF

42.0 KB Created: 2020-10-23 18:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 52d52b4bc980e2d70fd1fccdb40f48b3 SHA-1: 1b3321dc848017e15491f61d29746b4bbf86a343 SHA-256: 0d3f9c0a7d25da21e1a14440a35e352681ff40a06f1d3a8c81886e1264cff1ec
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=biology%20practical%20book%20for%20class%2012%20pdf%20download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f873e147c46a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402936/normal_5f91831b62739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f8a346fbf3b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5f8c1cb52120d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_5f90e696861c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_5f8b5f822c71a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365662/normal_5f86f7abaad9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393908/normal_5f92621dd344e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_5f91f15a91434.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/jurnal_penelitian_akuntansi_manajemen.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/wefirogefitewogine.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/apa_style_research_paper_format.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/26916982747.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/julajosedesibaledig.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/dizatilexeredaledisirivu.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/types_of_bitumen_used_for_road_construction.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/arthashastra_in_marathi_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/20151753911.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc03b4a2-818e-4549-a99b-f6bee09aea71/28023739088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abfdbc64-20aa-4f86-b21f-c9e358006bf9/dafimusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91794458-608b-46f6-ab81-167691cb2984/66132731286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfbb2104-b9e1-4fe4-9b8a-8b7df7eef5c9/63698820719.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_off00006401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6401 5952 bytes
SHA-256: 5c1a0475d0cd76cbb23220f8b23f24e417bfabe324c9110f4eb0af3235be6372
font_01_sfnt_off00007876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7876 9948 bytes
SHA-256: 823377628fef2e5a98064e376ee30d00e4981f5e85789814896d766703efa89c

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