Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b697f40803b43d8…

MALICIOUS

PDF

16.2 KB Created: 2019-04-30 18:01:37 +01:00 Authoring application: mPDF 5.7
MD5: 28d7efc55bc06b4d6646b531f69d64c1 SHA-1: f2b739a39c8ad6088739ad046a69cfba660a89dd SHA-256: 3b697f40803b43d80c167b7db2183f7f969840fe385f6cc3d2da7640b961684e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, constituting a link farm. This is indicative of a social engineering tactic to direct users to potentially malicious content or to manipulate search engine rankings. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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://loaminoo.linkpc.net/6092090099093096/Towards-a-Visual-Culture-Educating-Through-Television-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092090099092094/Notes-on-the-Gattegno-Approach-to-Math-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091091090097/Eight-Tales-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090094097/Can-I-Be-Creative-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090099099/The-Adolescent-and-His-Will-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090095090/On-Being-Freer-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090095092/A-Thousand-Sentences-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092090099096099/Short-Passages-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090093096/Evolution-and-Memory-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090093097/Algebricks-Exercise-Workbooks-1-6-Set-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090095091/Know-Your-Children-as-They-Are-A-Book-for-Parents-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091091091092/Mathematics-with-Numbers-in-Colour-Book-VI-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092090099092098/Teaching-Foreign-Languages-in-Schools-the-Silent-Way-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090099093/Science-of-Education-PT-Iib-Chapters-10-12-The-Awareness-of-Mathematization-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/6092091090094095/Awareness-of-Awareness-by-Caleb-Gattegno.pdf
    • http://loaminoo.linkpc.net/4096098098093093/Rocking-Around-the-Clock-Music-Television-Post-Modernism-and-Consumer-Culture-by-E-Ann-Kaplan.pdf
    • http://loaminoo.linkpc.net/5098092095095097/Shakespeare-and-Visual-Culture-by-Armelle-Sabatier.pdf
    • http://loaminoo.linkpc.net/4098095096097099/Genshiken-The-Society-for-the-Study-of-Modern-Visual-Culture-Vol-7-by-Shimoku-Kio.pdf
    • http://loaminoo.linkpc.net/4098095097090097/Genshiken-The-Society-for-the-Study-of-Modern-Visual-Culture-Vol-9-by-Shimoku-Kio.pdf
    • http://loaminoo.linkpc.net/2090093096097098/Genshiken-The-Society-for-the-Study-of-Modern-Visual-Culture-Vol-1-by-Shimoku-Kio.pdf
    • http://loaminoo.linkpc.net/6092091091091092/Mathematics-with-Numbers-in-Colour-Book-VI-by-Cale

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