Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2598fc67a0b867a…

MALICIOUS

PDF

15.6 KB Created: 2019-05-02 01:03:29 +01:00 Authoring application: mPDF 5.7
MD5: ab7770910b99f52120bfba9954143e2d SHA-1: 6239d8bea0da04a2489e1910caa4c82a7f1fd6c5 SHA-256: b2598fc67a0b867a1c88457258476f6d50e2f39a3d0dc3ed06e26c7ceca3ff61
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. While the document body is heavily obfuscated, the presence of numerous links to book titles on a suspicious domain indicates a potential SEO manipulation or phishing attempt. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/1a00a08a01a08a08/Through-the-Smoke-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/4a05a04a08a05a05/Every-Waking-Moment-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/3a00a03a04a04a00/Dead-Right-Stillwater-3-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/3a01a09a02a07a03/Every-Waking-Moment-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/2a00a08a03a03/A-Home-of-Her-Own-Dundee-Idaho-4-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/2a02a00a08a02a01/When-Summer-Comes-Whiskey-Creek-3-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/2a00a06a06a02/Dead-Giveaway-Stillwater-2-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a05a09/The-Perfect-Liar-The-Last-Stand-5-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a08a06a01a09a02/Dead-Silence-Stillwater-1-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a01a09a00a01a05a04/We-Saw-Mommy-Kissing-Santa-Claus-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/2a02a04a07a01a01/Take-Me-Home-for-Christmas-Whiskey-Creek-5-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a01a02a05a09a07a00/No-One-But-You---Hanya-Dirimu-Silver-Springs-2-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/3a09a02a08a06a04/Hanover-House-The-Evelyn-Talbot-Chronicles-0-5-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/3a01a06a02a00a05/White-Heat-Dept-6-Hired-Guns-1-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a01a02a02a05a04a01/A-Dundee-Christmas-Dundee-Idaho-8-5-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a05/Home-to-Whiskey-Creek-Whiskey-Creek-4-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/6a02a06a00a04a04/Seduced-While-Strangers-Watch-Four-stories-about-women-getting-used-hard-and-filled-up-while-crowds-of-total-strangers-watch-on-and-sometimes-help-out-by-Anya-Aurelie.pdf
    • http://muicuiu.dumb1.com/7a03a03a01a05a04/Exiles-Diasporas-amp-Strangers-Exiles-Diasporas-amp-Strangers-by-Kobena-Mercer.pdf
    • http://muicuiu.dumb1.com/5a09a04a08a03/The-Everything-Machine-by-Matt-Novak.pdf
    • http://muicuiu.dumb1.com/1a00a07a09a03a01a09/Will-It-Liberate-by-Michael-Novak.pdf

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