Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb404394420b73b5…

MALICIOUS

PDF

25.9 KB Created: 2020-10-04 09:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 0231e4f767661c3f921f626c886ade86 SHA-1: cdd2eea1f3e236c60f1bed39acd441989885b314 SHA-256: bb404394420b73b5645a88184ed38b91691ad6ae5497e265091599011e9045ab
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm and a direct link to a known malicious redirector. The primary malicious URL identified is https://cctraff.ru/strik?keyword=la+photo+qui+tue+texte+int%25C3%25A9gral. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure the user to malicious infrastructure. The presence of numerous links to other PDFs hosted on platforms like Strikingly and Shopify indicates a potential SEO poisoning or link farm strategy to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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.
  • 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=la+photo+qui+tue+texte+int%25C3%25A9gral In PDF document text
    • http://files.bridgetsboldbelievers.com/uploads/1/3/2/7/132712302/6092663.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2696ee41-47b1-4915-b5f4-30c796b88b73/94497692227.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20e23937-a5da-4558-9889-259e336ceb4f/32473050142.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c24dadbf-f4c0-4db7-95b0-80d2ede872c1/wapal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd97b4e-9a99-4760-998c-7f778a42b6a1/wudekibovojezoxinuwonema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9638/5957/files/zogoxoriwirogumuwedete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/energy_institute_high_school_pto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7448/2076/files/32_inch_smart_tv_with_built_in_wifi_currys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0999/3635/files/leadership_theory_and_practice_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/sustantivo_y_adjetivo_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/a_midsummer_nights_dream.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6179/files/kingdom_rush_frontiers_unblocked_tyrone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/4794/8966/files/pufukosaresajilisokuniki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9120/0674/files/zegegiduriwazux.pdfIn PDF document text

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