Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8bc5fe37022240b…

MALICIOUS

PDF

15.0 KB Created: 2019-04-30 05:36:56 +01:00 Authoring application: mPDF 5.7
MD5: d5c9a148daed21fdbb5c951c3cedb571 SHA-1: 9c56accef3bf635fae0f9c240a5e7a39d172e449 SHA-256: d8bc5fe37022240b9989780e427a0815094592baf20f0d6e7c8955329ca5988e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. This technique is often used to direct users to malicious websites for further exploitation or phishing. The ML classifier also flagged this PDF as malicious with high confidence. 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/3a06a00a08a01a01/How-to-Ruin-Halloween-for-the-Grim-Reaper-How-to-Ruin-1-by-Crymsyn-Hart.pdf
    • http://muicuiu.dumb1.com/4a05a07a07a00/How-to-Ruin-Your-Boyfriend-s-Reputation-How-to-Ruin-3-by-Simone-Elkeles.pdf
    • http://muicuiu.dumb1.com/4a02a09a08a08a06/How-to-Ruin-a-Summer-Vacation-How-To-Ruin-1-by-Simone-Elkeles.pdf
    • http://muicuiu.dumb1.com/4a05a02a05a03a01/The-Ruin-Series-Boxed-Set-Ruin-1-2-by-Rachel-Van-Dyken.pdf
    • http://muicuiu.dumb1.com/3a05a00a07a02/Ruin-Ruin-1-by-Rachel-Van-Dyken.pdf
    • http://muicuiu.dumb1.com/3a04a01a03a08/Rot-amp-Ruin-Rot-amp-Ruin-1-by-Jonathan-Maberry.pdf
    • http://muicuiu.dumb1.com/2a09a02a01a04a04/Violent-Things-Chaos-amp-Ruin-1-by-Callie-Hart.pdf
    • http://muicuiu.dumb1.com/3a00a06a08a08a08/Savage-Things-Chaos-amp-Ruin-2-by-Callie-Hart.pdf
    • http://muicuiu.dumb1.com/2a03a05a07a06a06/A-Song-of-Wraiths-and-Ruin-A-Song-of-Wraiths-and-Ruin-1-by-Roseanne-A-Brown.pdf
    • http://muicuiu.dumb1.com/1a00a00a00a05a02a04/Krampus-to-the-Rescue-by-Crymsyn-Hart.pdf
    • http://muicuiu.dumb1.com/2a09a04a07a01a08/Kim-Reaper-Vol-1-Grim-Beginnings-by-Sarah-Graley.pdf
    • http://muicuiu.dumb1.com/4a09a03a03a09/Grim-Reaper-End-of-Days-by-Steve-Alten.pdf
    • http://muicuiu.dumb1.com/4a00a06a08a09a09/Reaper-s-Deliverance-Grim-Alliance-1-by-Miranda-Stork.pdf
    • http://muicuiu.dumb1.com/8a07a06a06a06a07/Flowers-for-Her-Grave-Grim-Reaper-Mystery-3-by-Judy-Clemens.pdf
    • http://muicuiu.dumb1.com/9a00a03a01a03a08/The-Grim-Reaper-Crowner-John-Mystery-6-by-Bernard-Knight.pdf
    • http://muicuiu.dumb1.com/3a09a02a01a06a02/He-Will-Be-My-Ruin-by-K-A-Tucker.pdf
    • http://muicuiu.dumb1.com/7a06a09a08a05a04/Ruin-by-N-M-Martinez.pdf
    • http://muicuiu.dumb1.com/2a00a08a02a04a06/Wrack-and-Ruin-by-Don-Lee.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a09a01/Beyond-Ruin-Beyond-7-by-Kit-Rocha.pdf
    • http://muicuiu.dumb1.com/2a06a08a01a02a03/After-the-Ruin-by-Harriet-Goodchild.pdf

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