Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d7d30caf587ced…

MALICIOUS

PDF

20.7 KB Created: 2019-05-07 04:09:41 +01:00 Authoring application: mPDF 5.7
MD5: be03d98b994081494460445ef18e2c70 SHA-1: bd2797e0f1c7051f479695a48ec88398ee168960 SHA-256: e8d7d30caf587ced2fc81fd1d8c29b7de0e4cc136a78bf69e58de413f957fd11
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, 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, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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/6098093094097096/Digital-and-Analog-Fiber-Optic-Communications-for-CATV-and-FTTx-Applications-SPIE-Press-Monograph-Vol-PM174-Press-Monograph-Spie-Press-Monograph-by-Avigdor-Brillant.pdf
    • http://loaminoo.linkpc.net/7094094090097095/Foster-Associates-Architectural-Monograph-by-Architectural-Monograph.pdf
    • http://loaminoo.linkpc.net/1091091093091096098/The-Jewish-Press---A-Gevalt-from-the-Torah-True-An-Examination-of-the-Concepts-Holocaust-and-Israel-in-the-American-Jewish-Newspaper-the-Jewish-Press-by-Sahra-L-Lindeberg.pdf
    • http://loaminoo.linkpc.net/7094093099094095/Frederick-H-Evans-Pa-by-Monograph.pdf
    • http://loaminoo.linkpc.net/7094094091097093/Monograph-of-the-Choanephoraceae-by-Paul-M-Kirk.pdf
    • http://loaminoo.linkpc.net/7094094091097092/The-Bulldog---A-Monograph-by-Edgar-Farman.pdf
    • http://loaminoo.linkpc.net/4095098092099092/Stelarc-The-Monograph-by-Marquard-Smith.pdf
    • http://loaminoo.linkpc.net/7094094090097092/Robert-A-M-Stern-by-Architectural-Monograph.pdf
    • http://loaminoo.linkpc.net/7094094093092097/A-Monograph-of-Odontoglossum-by-James-Bateman.pdf
    • http://loaminoo.linkpc.net/7094094090098096/Photographs-An-Aperture-Monograph-by-William-Klein.pdf
    • http://loaminoo.linkpc.net/7094094090091098/The-Mathematics-of-Bookselling-A-Monograph-by-Leonard-Shatzkin.pdf
    • http://loaminoo.linkpc.net/7094094093093097/Fairweather-Art-amp-Australia-Monograph-by-Murray-Bail.pdf
    • http://loaminoo.linkpc.net/7094094090092091/Theogony-Academic-Monograph-Reprints-by-Hesiod.pdf
    • http://loaminoo.linkpc.net/7094094091097098/Charlotte-Bront-A-Monograph-by-Thomas-Wemyss-Reid.pdf
    • http://loaminoo.linkpc.net/7094094093092091/J-M-Barrie-A-Walck-Monograph-by-Roger-Lancelyn-Green.pdf
    • http://loaminoo.linkpc.net/7094094091097099/The-Estimation-Of-Probabilities-Research-Monograph-by-Irving-John-Good.pdf
    • http://loaminoo.linkpc.net/7094094091098093/Theophano-The-Crusade-of-the-Tenth-Century-A-Romantic-Monograph-by-Frederic-Harrison.pdf
    • http://loaminoo.linkpc.net/7094093099094096/Paradise-Lost-the-Text-Reprod-from-the-1st-Ed-of-1667-with-an-Appendix-and-a-Monograph-By-R-H-Shepherd-by-John-Milton.pdf
    • http://loaminoo.linkpc.net/1090097098092096090/DEPRESSION-Advancing-the-Treatment-Paradigm-Functional-Medicine-Monograph-Series-by-Robert-Hedaya.pdf
    • http://loaminoo.linkpc.net/2091090097092098/Northwest-Coast-Indian-Art-An-Analysis-of-Form-Thomas-Burke-Memorial-Washington-State-Monograph-by-Bill-Holm.pdf

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