Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be2ed05464c2a8e…

MALICIOUS

PDF

44.1 KB Created: 2020-10-17 08:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ffd3f01252bcaa693eaf2b9b3e8bb8c7 SHA-1: efaf23281b8d4dfa1b506b8da5705f9c49abce8d SHA-256: 3be2ed05464c2a8ebc091d8a82324ec4237b04d83f48c64e7130fc26cf46cb31
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/strik?keyword=netball+coaching+manuals In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375908/normal_5f8a111617682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_5f893388485a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366982/normal_5f8917e137b24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373776/normal_5f8915ddd0ef0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368962/normal_5f8996f0282d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371553/normal_5f8a6d099ffcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366399/normal_5f8780b2cfec8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_5f89f2894ca94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f874b9b7c104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379230/normal_5f8a5527545aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_5f87be4e5b580.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f8a674dab5d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f8750462d8fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f871ab25ce81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365662/normal_5f8715ad0f29b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f89b812755a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5f895917c785f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367275/normal_5f8a3d741dda8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367921/normal_5f89d0a247bb2.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/3baa5e39-d3d3-4bcf-94d6-edd4be8417be/97385745234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dc8e791-a32e-4f3d-8eb6-5adb65378ad0/temababejodokugekigez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/754750cf-7485-4f33-b5dc-d41ec3b48cd9/2462515884.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f304681-69c1-416b-a551-4addea917c6d/16119900566.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_off00006c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C79 5228 bytes
SHA-256: 92fe0888178e2895641d059b08955f799d66193620f50976573954f62563a971
font_01_sfnt_off00007e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E13 11004 bytes
SHA-256: 2b313f9b8f55541f59e984d26a13f0f24e026929e4ae33d11e0d0d70fc505608