Malicious PDF — malware analysis report

Static analysis result for SHA-256 efeb0ab62f245ad6…

MALICIOUS

PDF

27.8 KB Created: 2019-04-30 03:25:39 +01:00 Authoring application: mPDF 5.7
MD5: fa213e9efb02f0bfab187d4843ded4b9 SHA-1: d0253112b71510d283c564dcbd902f0e63284743 SHA-256: efeb0ab62f245ad64cd26d1d3a39e70128fb5a840f8ead52d548255e1f4e3176
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external websites. While most of these URLs were classified as benign, the sheer volume and the nature of the heuristic suggest a potential attempt at SEO manipulation or as a distribution point for malicious content. The ML_NYX_PDF_MALICIOUS classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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/8a02a02a00a00a09/Translators-of-the-Bible-Into-French-Theodore-Beza-Jacques-Lef-vre-D-taples-Andr-Chouraqui-Jean-Fr-d-ric-Osterwald-John-Trevisa-by-Books-LLC.pdf
    • http://muicuiu.dumb1.com/6a06a01a02a00a03/Articles-on-French-Comics-Artists-Including-Enki-Bilal-Jacques-Tardi-R-GIS-Loisel-Joann-Sfar-Jean-Jacques-Semp-Jacques-Martin-Comics-Fran-OIS-Bourgeon-Jean-Graton-Emmanuel-Larcenet-David-Beauchard-Michel-Rodrigue-by-Hephaestus-Books.pdf
    • http://muicuiu.dumb1.com/1a01a01a04a05a06a01/Inno-in-onore-di-Jehova-by-Jean-Baptiste-Andr.pdf
    • http://muicuiu.dumb1.com/7a09a07a05a06a09/French-Academic-Biography-Introduction-Gilles-Kepel-Herve-Biausser-Maryse-Marpsat-Arnold-Van-Gennep-Sylvain-Lazarus-Jean-Jacques-Origas-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/8a00a07a07a02a09/King-James-The-Holy-Bible-the-bible-bible-bible-study-jesus-religion-religious-heaven-king-james-old-testament-new-testament-prayer-books-christian-by-Anonymous.pdf
    • http://muicuiu.dumb1.com/2a09a06a03a07a00/And-There-Was-Light-Autobiography-of-Jacques-Lusseyran-Blind-Hero-of-the-French-Resistance-by-Jacques-Lusseyran.pdf
    • http://muicuiu.dumb1.com/8a04a04a08a01a08/Accuser-et-s-duire-Essais-sur-Jean-Jacques-Rousseau-by-Jean-Starobinski.pdf
    • http://muicuiu.dumb1.com/5a03a05a00a06a06/The-Confessions-of-Jean-Jacques-Rousseau-3-by-Jean-Jacques-Rousseau.pdf
    • http://muicuiu.dumb1.com/6a03a00a03a09a03/French-History-Introduction-Berry-Douane-Lacan-Treaty-of-Tours-Louis-the-Stammerer-Coutumes-de-Beauvaisis-French-Ship-Redoutable-by-Books-LLC.pdf
    • http://muicuiu.dumb1.com/4a03a05a04a00a02/Theodore-Boone-Kid-Lawyer-Theodore-Boone-1-by-John-Grisham.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a04a05a07/Madness-Thy-Name-Is-Woman-Viktorianische-Vorstellungen-Von-Weiblicher-Hysterie-Und-Ihre-Verarbeitung-in-Charlotte-Bront-s-Jane-Eyre-Jean-Rhys-Wide-Sargasso-Sea-Und-John-Fowles-the-French-Lieutenant-s-Woman-by-Tanja-Hamann.pdf
    • http://muicuiu.dumb1.com/2a09a04a06a05a02/The-Musicians-by-Jean-Jacques-Semp-.pdf
    • http://muicuiu.dumb1.com/1a08a03a00a07a05/The-Confessions-by-Jean-Jacques-Rousseau.pdf
    • http://muicuiu.dumb1.com/5a00a07a02a05a00/Theodore-Roosevelt-and-the-American-Political-Tradition-by-Jean-M-Yarbrough.pdf
    • http://muicuiu.dumb1.com/4a09a02a04a05a04/Theodore-Boone-Theodore-Boone-1-by-John-Grisham.pdf
    • http://muicuiu.dumb1.com/7a04a06a07a09a07/Competition-in-Telecommunications-by-Jean-Jacques-Laffont.pdf
    • http://muicuiu.dumb1.com/1a01a05a02a08a03/Death-by-Publication-by-Jean-Jacques-Fiechter.pdf
    • http://muicuiu.dumb1.com/5a04a00a00a08a02/Du-contrat-social-by-Jean-Jacques-Rousseau.pdf
    • http://muicuiu.dumb1.com/4a09a04a04a03/Emile-or-On-Education-by-Jean-Jacques-Rousseau.pdf
    • http://muicuiu.dumb1.com/5a03a05a01a06a04/On-the-Origin-of-Language-by-Jean-Jacques-Rousseau.pdf
    • http://muicuiu.dumb1.com/7a09a07a05a06a09/French-Academic-Biography-Introduction-

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