Malicious PDF — malware analysis report

Static analysis result for SHA-256 b56a8aa2b35975c3…

MALICIOUS

PDF

17.7 KB Created: 2019-05-05 15:56:42 +01:00 Authoring application: mPDF 5.7
MD5: cb451434773dc3e1e1edc109fe9ec9f6 SHA-1: c345fe1350645c15a4243871befd667ecc64b512 SHA-256: b56a8aa2b35975c3ef1c000ead30d2380014180bce5aecf20608159f9e29a9a1
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 URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. While most of these URLs are marked as confirmed benign, the sheer volume and the ML_NYX_PDF_MALICIOUS classification suggest a malicious intent, likely for SEO spam or to redirect users to malicious content. No scripts were extracted from this sample, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3a06a00a08a04a05/Midnight-Promises-Men-of-Midnight-2-by-Lisa-Marie-Rice.pdf
    • http://muicuiu.dumb1.com/1a04a08a07a06a01/Midnight-Run-Midnight-2-by-Lisa-Marie-Rice.pdf
    • http://muicuiu.dumb1.com/4a07a03a00a01/Midnight-Man-Midnight-1-by-Lisa-Marie-Rice.pdf
    • http://muicuiu.dumb1.com/4a04a04a01a07a09/The-Dark-Warrior-Series-The-Complete-Collection-Contains-Midnight-s-Master-Midnight-s-Lover-Midnight-s-Seduction-Midnight-s-Warrior-Midnight-s-Kiss-Surrender-novella-Dark-Warriors-by-Donna-Grant.pdf
    • http://muicuiu.dumb1.com/2a04a06a07a03a05/Meet-the-Earl-at-Midnight-Midnight-Meetings-1-by-Gina-Conkle.pdf
    • http://muicuiu.dumb1.com/6a09a04a05a03a04/13-Ways-to-Midnight-Book-One-A-Reverse-Harem-Young-Adult-Paranormal-Romance-The-Midnight-Saga-by-Rue-Volley.pdf
    • http://muicuiu.dumb1.com/2a04a05a00a00a01/Kiss-of-Midnight-Midnight-Breed-1-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/5a07a05a07a04/Midnight-Crossroad-Midnight-Texas-1-by-Charlaine-Harris.pdf
    • http://muicuiu.dumb1.com/8a01a01a09a05a05/The-Marquis-At-Midnight-Midnight-Masquerade-1-by-Kate-Harper.pdf
    • http://muicuiu.dumb1.com/2a08a04a07a04a07/Darker-After-Midnight-Midnight-Breed-10-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/6a04a00a04a03a02/The-Midnight-Society-Midnight-Chronicles-1-by-Rhonda-Sermon.pdf
    • http://muicuiu.dumb1.com/3a05a07a04a03a07/Midnight-Rising-Midnight-Breed-4-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/3a01a05a04a08a02/Veil-of-Midnight-Midnight-Breed-5-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/3a04a04a09a08/Veil-of-Midnight-Midnight-Breed-5-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/2a00a06a02a05a06/The-Midnight-Hunt-Midnight-Hunters-1-by-L-L-Raand.pdf
    • http://muicuiu.dumb1.com/4a02a07a00a09a09/Midnight-Surrender-Wolves-of-Midnight-1-by-Mia-Petrova.pdf
    • http://muicuiu.dumb1.com/4a08a00a01a07a00/Taken-by-Midnight-Midnight-Breed-8-by-Lara-Adrian.pdf
    • http://muicuiu.dumb1.com/4a08a01a00a00/Midnight-s-Master-Midnight-3-by-Cynthia-Eden.pdf
    • http://muicuiu.dumb1.com/9a02a06a08a01a01/Midnight-Betrayal-Midnight-3-by-Melinda-Leigh.pdf
    • http://muicuiu.dumb1.com/3a03a09a02a03/The-Other-Side-of-Midnight-Midnight-1-by-Sidney-Sheldon.pdf
    • http://muicuiu.dumb1.com/2a04a06a07

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