Malicious PDF — malware analysis report

Static analysis result for SHA-256 d411874d75ed61c6…

MALICIOUS

PDF

17.8 KB Created: 2019-04-30 04:22:26 +01:00 Authoring application: mPDF 5.7
MD5: e9a68d029afd0362e96b5adb89ea7026 SHA-1: f24ba7c61aec4c5b7e1131e43466e5025c464ef2 SHA-256: d411874d75ed61c6f303caaa27778dd1710c19ccb12214cab3fa4544d15043ef
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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.d
    • http://muicuiu.dumb1.com/1a01a01a02a05a05a07/The-Utility-Player-The-Des-Hasler-Story-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/4a00a09a06a03a05/Schindler-s-Ark-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/3a07a01a09a05a09/Schindler-s-Ark-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/3a02a01a09a00a07/Confederates-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/4a06a02a05a08a02/Crimes-of-the-Father-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/1a06a06a01a09a04/The-Daughters-of-Mars-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/1a04a04a03a07a00/Three-Cheers-for-the-Paraclete-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/3a02a02a08a05a09/A-River-Town-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/6a00a03a06a02a01/La-Qu-te-de-Schindler-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/4a03a06a02a09a02/Searching-for-Schindler-A-Memoir-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/9a03a07a04a05a04/The-Great-Shame-And-the-Triumph-of-the-Irish-in-the-English-Speaking-World-by-Thomas-Keneally.pdf
    • http://muicuiu.dumb1.com/1a01a01a02a07a07a00/Julie-Hasler-s-Cross-Stitch-Projects-65-Quick-and-Easy-Designs-Perfect-for-Home-Children-and-Special-Occasions-by-Julie-Hasler.pdf
    • http://muicuiu.dumb1.com/1a01a01a02a05a05a01/Julie-Hasler-s-Fantasy-Cross-Stitch-by-Julie-Hasler.pdf
    • http://muicuiu.dumb1.com/4a02a08a02a08a07/My-Story-The-Duchess-Of-York-Her-Father-And-Me-by-Lesley-Player.pdf
    • http://muicuiu.dumb1.com/5a02a09a04a06a08/Player-one-Ready-Player-One-by-Ernest-Cline.pdf
    • http://muicuiu.dumb1.com/1a04a01a03a05a04/Shakespeare-and-Co-Christopher-Marlowe-Thomas-Dekker-Ben-Jonson-Thomas-Middleton-John-Fletcher-and-the-Other-Players-in-His-Story-by-Stanley-Wells.pdf
    • http://muicuiu.dumb1.com/4a03a04a03a08a06/The-Player-s-Club-Scott-The-Player-s-Club-1-by-Cathy-Yardley.pdf
    • http://muicuiu.dumb1.com/4a02a06a07a07a05/The-Utility-of-Boredom-Baseball-Essays-by-Andrew-Forbes.pdf
    • http://muicuiu.dumb1.com/1a07a01a08a08a01/The-Player-The-Player-1-by-K-Bromberg.pdf
    • http://muicuiu.dumb1.com/5a03a03a00a03/Ready-Player-One-Ready-Player-One-1-by-Ernest-Cline.pdf

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