Malicious PDF — malware analysis report

Static analysis result for SHA-256 fef64b5af0a66a6a…

MALICIOUS

PDF

19.0 KB Created: 2019-05-03 06:07:01 +01:00 Authoring application: mPDF 5.7
MD5: 00a1df81283c155b2843f2ae0879087a SHA-1: 8936890ab1a5cdb956d81f942d927b37ee2b634e SHA-256: fef64b5af0a66a6aa5d946cbfb97a4fed2258eceb73a0fd116037eb6dc02920e
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently classified as benign, the sheer volume and the critical heuristic firing suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample, limiting further analysis of its behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/9a07a03a00a00a05/Asaria-s-Story-Part-2-The-Pen-Pal-Series-by-Rayven-Skyy.pdf
    • http://muicuiu.dumb1.com/9a07a03a00a01a02/If-My-Bed-Could-Talk-by-Rayven-Skyy.pdf
    • http://muicuiu.dumb1.com/9a07a03a01a04a06/Confessions-of-a-Sex-Fiend-series-by-Rayven-Godchild.pdf
    • http://muicuiu.dumb1.com/9a07a03a00a01a01/Starcrossed-the-Complete-Series-Bad-Romeo-Broken-Juliet-Wicked-Heart-by-Leisa-Rayven.pdf
    • http://muicuiu.dumb1.com/1a04a05a06a03a00/Moonlight-a-Melanie-King-Affair-4-Part-Mini-Series---Part-1-by-Lisa-Sumil.pdf
    • http://muicuiu.dumb1.com/9a07a03a05a00a08/Pikcanon-Not---Canon-Treasures-Ancient-Ad-Series-Ancient-Secrets-Series-Blast-from-the-Past-Series-Cook-s-Arsenal-Series-Crystallized-Emotions-Series-Dream-Series-Explorer-s-Friend-Series-Frigid-Series-Gourmet-Series-Husband-s-Tears-Series-Mass-by-Source-Wikia.pdf
    • http://muicuiu.dumb1.com/3a07a08a00a08a07/Crossroads-by-Skyy.pdf
    • http://muicuiu.dumb1.com/2a06a05a06a05a04/Full-Circle-by-Skyy.pdf
    • http://muicuiu.dumb1.com/1a04a06a00a06a06/Blush-Part-1-The-Governor-Series-by-D-M-Lee.pdf
    • http://muicuiu.dumb1.com/1a05a05a03a04a07/The-Crossing-Part-II-of-the-Origins-Series-by-S-E-Meyer.pdf
    • http://muicuiu.dumb1.com/8a07a04a08a02a00/Squirm-Part-1-of-the-E-E-T-Series-by-Justin-Lindner.pdf
    • http://muicuiu.dumb1.com/1a04a06a05a02a05/One-To-See-Me-The-ONE-Series-Part-1-Book-2-by-Alicia-Maxwell.pdf
    • http://muicuiu.dumb1.com/8a05a04a03a05a02/The-Mansion-House-Series-Part-I-by-Marilou-Johansson.pdf
    • http://muicuiu.dumb1.com/9a03a07a09a06a07/CONSUMED-Part-Two-The-Hot-Studs-Series-Book-2-by-Cee-Cee-Houston.pdf
    • http://muicuiu.dumb1.com/8a05a09a01a00a01/Unbreakable-Part-1-Precaution-Series-by-Christin-Lovell.pdf
    • http://muicuiu.dumb1.com/7a05a09a01a04a00/Chromozone-Part-Two-The-Sinister-Series-by-Paul-D-Roberts.pdf
    • http://muicuiu.dumb1.com/1a04a06a01a02a00/One-To-Watch-Me-The-ONE-Series-Part-1-Book-1-by-Alicia-Maxwell.pdf
    • http://muicuiu.dumb1.com/8a05a09a01a00a03/Unbreakable-Part-2-Precaution-Series-by-Christin-Lovell.pdf
    • http://muicuiu.dumb1.com/2a06a00a07a04a06/The-Story-Part-I-by-Samuel-Livingston.pdf
    • http://muicuiu.dumb1.com/2a05a05a01a00a04/My-Fianc-s-Brother-Part-2-The-Guilty-Series-2-by-Odette-Stone.pdf

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