Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca90df56d7c30fbe…

MALICIOUS

PDF

15.1 KB Created: 2019-04-30 02:25:41 +01:00 Authoring application: mPDF 5.7
MD5: a471e962b915b6312a6fdaa95259fbea SHA-1: 4fb1a7ee5a9030e983ba4fbf26d41ed7481ad96f SHA-256: ca90df56d7c30fbe86bb875d43f0fdf12f7c8e49792ba42a2cde37bc6434d08e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs appear to be book titles, the sheer volume and the ML classifier's high confidence score suggest a malicious intent, likely for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

Heuristics 2

  • 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 http://muicuiu.dumb1.com/3a05a04a08a00a07/Blood-Moon-The-Huntress-FBI-Thrillers-2-by-Alexandra-Sokoloff.pdf
    • http://muicuiu.dumb1.com/2a02a00a08a09a09/Blood-Moon-Huntress-FBI-Thrillers-2-by-Alexandra-Sokoloff.pdf
    • http://muicuiu.dumb1.com/3a03a07a08a06a04/Huntress-Moon-Huntress-FBI-Thrillers-1-by-Alexandra-Sokoloff.pdf
    • http://muicuiu.dumb1.com/4a02a06a04a06a07/The-Harrowing-by-Alexandra-Sokoloff.pdf
    • http://muicuiu.dumb1.com/1a05a03a09a01a08/Book-of-Shadows-by-Alexandra-Sokoloff.pdf
    • http://muicuiu.dumb1.com/1a03a02a07a09a03/Blood-on-the-Moon-Blood-on-the-Moon-1-by-Jennifer-Knight.pdf
    • http://muicuiu.dumb1.com/2a02a03a05a07a08/Blood-Moon-Blood-Moon-1-by-Dawn-Thompson.pdf
    • http://muicuiu.dumb1.com/1a05a08a09a03a08/Night-Huntress-Otherworld-Sisters-of-the-Moon-5-by-Yasmine-Galenorn.pdf
    • http://muicuiu.dumb1.com/3a00a08a01a08a00/Batman-Huntress-Cry-for-Blood-by-Greg-Rucka.pdf
    • http://muicuiu.dumb1.com/1a07a02a04a04a02/Only-Vampires-Cry-Blood-Alexa-O-Brien-Huntress-3-by-Trina-M-Lee.pdf
    • http://muicuiu.dumb1.com/1a02a00a01a07a02/Blood-Moon-Dark-Moon-Series-Book-1-by-Shelly-M-Burrows.pdf
    • http://muicuiu.dumb1.com/1a08a09a04a05a09/To-Crave-a-Blood-Moon-Moon-Chasers-3-by-Sharie-Kohler.pdf
    • http://muicuiu.dumb1.com/4a03a06a02a03a01/The-Blood-Moon-Chronicles-Blood-Moon-Chronicles-1-5-by-June-Spears.pdf
    • http://muicuiu.dumb1.com/3a00a07a03a07a04/Blood-Moon-Over-Africa-The-Blood-Trilogy-Book-1-by-Paul-Zunckel.pdf
    • http://muicuiu.dumb1.com/3a08a07a04a02a01/Blood-Moon-Moon-3-by-Lisa-Kessler.pdf
    • http://muicuiu.dumb1.com/1a08a04a06a03a08/Blood-Crave-Blood-on-the-Moon-2-by-Jennifer-Knight.pdf
    • http://muicuiu.dumb1.com/2a08a02a00a04a01/Blood-Moon-Blood-2-by-T-Lynne-Tolles.pdf
    • http://muicuiu.dumb1.com/2a07a08a06a06a02/Huntress-Alexa-O-Brien-Huntress-0-5-by-Trina-M-Lee.pdf
    • http://muicuiu.dumb1.com/3a08a05a05a07a03/Huntress-For-Hire-The-Huntress-Chronicles-1-by-Ali-Atwood.pdf
    • http://muicuiu.dumb1.com/2a02a01a00a04a00/Blood-Secrets-Alexandra-Sabian-2-by-Jeannie-Holmes.pdf

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