Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb4db3b8a6470ebb…

MALICIOUS

PDF

54.6 KB Created: 2021-01-15 06:37:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 50d7d9beeb7676959703cff9fd184776 SHA-1: d6407034e6e57494002a568fec93ff58365663e8 SHA-256: bb4db3b8a6470ebb6be721cdc70d050e72acc9c3278fc8e1569c4e2787fdec35
152 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Mac os mojave beta free'. The presence of multiple PDF links and a redirector indicates an attempt to drive traffic to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6294

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/aws?utm_term=mac+os+mojave+beta++free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4371265/normal_5f8c9ca99ca00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495973/normal_5fd674d04f827.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486775/normal_5fe02a41c51fa.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/fieF7qr/teduxizugelidodexekuz.pdfIn PDF document text
    • https://japowubameke.weebly.com/uploads/1/3/1/4/131483598/genunu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423462/normal_5fadc44097aee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366947/normal_5fc93cb5d3725.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416811/normal_5fe1560d98f90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378160/normal_5ff86e96e1666.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371514/normal_5fb5f56c54b2f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450043/normal_5ff569f24d6b0.pdfIn PDF document text
    • https://negozikazaseju.weebly.com/uploads/1/3/4/5/134587396/bokitisodifagiboma.pdfIn PDF document text

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