Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3ad30ce58c858c…

MALICIOUS

PDF

14.9 KB Created: 2019-04-29 23:26:13 +01:00 Authoring application: mPDF 5.7
MD5: 99b175b0de6d9049b765d0cef0f8baaf SHA-1: 0b0d84971199d49de94e448b6bc9d34a4e3e64dd SHA-256: fd3ad30ce58c858c33cbc95028bd66fdb2c73e0f44f02dc3925c24e0de99c779
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier with high confidence and also triggered a critical heuristic for containing a mass external link farm. The embedded links, such as http://muicuiu.dumb1.com/3a04a07a01a08/Midnight-Warriors-The-New-Prophecy-1-by-Erin-Hunter.pdf, likely serve as a lure to download further malicious content or redirect users to phishing pages. The document body was unreadable, but the link farm heuristic strongly suggests a malicious intent.

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/3a04a07a01a08/Midnight-Warriors-The-New-Prophecy-1-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/9a01a04a06a04a08/Mondschein-Warriors-The-New-Prophecy-2-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a00a03a03a08a05/Sunset-Warriors-The-New-Prophecy-6-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a04a03a01a05a04/Sunset-Warriors-The-New-Prophecy-6-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/8a07a01a04a05/Twilight-amp-Sunset-Warriors-The-New-Prophecy-5-and-6-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/8a09a00a04a05/Dawn-and-Starlight-Warriors-The-New-Prophecy-3-amp-4-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a04a04a03a02/Bluestar-s-Prophecy-Warriors-Super-Edition-2-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/2a02a02a06a06a08/A-Dangerous-Path-Warriors-Series-5-by-Erin-Hunter-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/4a04a00a06a02a03/Warriors-Cats-of-the-Clans-Warriors-Field-Guide-2-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/7a09a00a09a09/Warriors-Cats-of-the-Clans-Warriors-Field-Guide-2-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/4a06a01a00a02a03/Into-the-Wild-Warriors-1-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a02a07a08a01/Into-the-Wild-Warriors-1-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a04a02a07a06/Rising-Storm-Warriors-4-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a04a00a05a02/Forest-of-Secrets-Warriors-3-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a03a04a00a09a07/Warriors-Power-of-Three-Box-Set-Books-1-3-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/3a08a06a03a04/Dark-River-Warriors-Power-of-Three-2-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/1a01a01a06a01a00/Warriors-Volume-4-The-Rise-of-Scourge-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/2a03a01a00a05a08/Long-Shadows-Warriors-Power-of-Three-5-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/1a01a02a01a02a07/Goosefeather-s-Curse-Warriors-Novellas-by-Erin-Hunter.pdf
    • http://muicuiu.dumb1.com/4a01a00a06a01/Warriors-Tigerstar-and-Sasha-1-Into-the-Woods-by-Erin-Hunter.pdf

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