Malicious PDF — malware analysis report

Static analysis result for SHA-256 02be352cb7c85b52…

MALICIOUS

PDF

24.9 KB Created: 2020-04-16 22:57:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3277d5195a7872f6811ce28eb4f68be4 SHA-1: 2e6fd810fc536f91c5b8f84fbd21dd425e299f73 SHA-256: 02be352cb7c85b5299c9e7b3e57ae8ac771d9d55d552ff1ee50caf5a3e8f0aca
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, indicating a link farm or redirection scheme, likely intended to manipulate search engine results or lead users to malicious content. The ML classifier strongly suggests malicious intent, and the presence of external URIs points towards a phishing or content-luring attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://calgarybrokerageproposal.com/uploads/1/3/1/1/131163836/131163836.html#bullworker+classic+manual
    • http://shopsnootyowl.com/uploads/1/3/1/3/131380741/jajosenolodefa-farusojituvefo-lulitoxapiti-dowogogafakal.pdf
    • http://fuerschbachpublishing.com/uploads/1/3/1/0/131070829/8226816.pdf
    • http://andreajclphotography.com/uploads/1/3/0/4/130436145/9440200.pdf
    • http://bmyguestnow.com/uploads/1/3/1/4/131453352/c60d449f914.pdf
    • http://thepavercleaners.com/uploads/1/3/1/0/131071209/zepunudowa.pdf
    • http://levanto.surf/uploads/1/3/0/6/130620603/aa24bdb4d6a.pdf
    • http://innoflompoc.com/uploads/1/3/0/9/130969862/raziponig-votej-bizubelofu-jukasol.pdf
    • http://tetheredteas.com/uploads/1/3/1/4/131438329/2147991.pdf
    • http://angelawilliamsconsulting.com/uploads/1/3/1/4/131406387/xexoke.pdf
    • http://lzremodeling.com/uploads/1/3/0/6/130604635/xesekigokutibisogi.pdf

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