Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d27ebb2f2f705b…

MALICIOUS

PDF

26.7 KB Created: 2019-05-02 18:46:35 +01:00 Authoring application: mPDF 5.7
MD5: 5abede3d7d06518809c25d01f7d2dad3 SHA-1: a17dff28d3a174e211a74509495696a5145eddd0 SHA-256: b5d27ebb2f2f705b177046358be8a79459a4342d2ea9210d0c9cb123e7191166
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external resources. The ML_NYX_PDF_MALICIOUS classifier also strongly indicated maliciousness. The embedded URLs, while appearing to link to historical documents, are part of a link farm designed to redirect users to potentially malicious content, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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://cmeinasaoo.duckdns.org/4b22b20b29b21b23/The-New-Country-A-Social-History-of-the-American-Frontier-1776-1890-by-Richard-A-Bartlett.pdf
    • http://cmeinasaoo.duckdns.org/8b22b25b28b25b20/Our-Lives-Our-Fortunes-and-Our-Sacred-Honor-The-Forging-of-American-Independence-1774-1776-by-Richard-Beeman.pdf
    • http://cmeinasaoo.duckdns.org/8b23b20b29b23b28/The-Frontier-in-American-History-by-Frederick-Jackson-Turner.pdf
    • http://cmeinasaoo.duckdns.org/2b23b23b24b29/A-History-of-the-American-Frontier-1763-1893-by-Frederic-L-Paxson.pdf
    • http://cmeinasaoo.duckdns.org/5b24b20b25b20b26/Bleed-Blister-and-Purge-A-History-of-Medicine-on-the-American-Frontier-by-Volney-Steele.pdf
    • http://cmeinasaoo.duckdns.org/9b24b27b29b28b20/American-Dreams-American-Realities-An-Introduction-to-the-Uses-of-History-by-Richard-C-Frucht.pdf
    • http://cmeinasaoo.duckdns.org/3b28b21b27b29b26/A-Social-History-of-the-Third-Reich-by-Richard-Grunberger.pdf
    • http://cmeinasaoo.duckdns.org/1b21b27b28b28b27b20/American-needlework-1776-1976-Needlepoint-and-crewel-patterns-adapted-from-historic-American-images-by-Leslie-Tillett.pdf
    • http://cmeinasaoo.duckdns.org/5b20b24b25b24/Our-Virtuous-Republic-The-Forgotten-Clause-in-the-American-Social-Contract-by-Richard-D-Baris.pdf
    • http://cmeinasaoo.duckdns.org/5b21b26b20b20b28/The-Building-of-Renaissance-Florence-An-Economic-and-Social-History-by-Richard-A-Goldthwaite.pdf
    • http://cmeinasaoo.duckdns.org/4b24b27b27b21b23/Discovering-The-News-A-Social-History-Of-American-Newspapers-by-Michael-Schudson.pdf
    • http://cmeinasaoo.duckdns.org/5b22b20b26b21b21/Made-in-America-A-Social-History-of-American-Culture-and-Character-by-Claude-S-Fischer.pdf
    • http://cmeinasaoo.duckdns.org/2b23b21b27b28/The-Greenback-Era-A-Social-and-Political-History-of-American-Finance-1865-1879-by-Irwin-Unger.pdf
    • http://cmeinasaoo.duckdns.org/6b26b21b21b21b27/Spreading-the-American-Dream-American-Economic-and-Cultural-Expansion-1890-1945-by-Emily-S-Rosenberg.pdf
    • http://cmeinasaoo.duckdns.org/4b28b22b22b26/The-Social-Origins-of-Private-Life-A-History-of-American-Families-1600-1900-by-Stephanie-Coontz.pdf
    • http://cmeinasaoo.duckdns.org/4b24b26b27b28b27/For-God-Country-and-Coca-Cola-The-Definitive-History-of-the-Great-American-Soft-Drink-and-the-Company-That-Makes-It-by-Mark-Pendergrast.pdf
    • http://cmeinasaoo.duckdns.org/1b25b28b25b26/The-Creation-of-the-American-Republic-1776-1787-by-Gordon-S-Wood.pdf
    • http://cmeinasaoo.duckdns.org/5b21b23b26b28b29/Re-imagining-the-Modern-American-West-A-Century-of-Fiction-History-and-Art-by-Richard-W-Etulain.pdf
    • http://cmeinasaoo.duckdns.org/4b29b20b20b27/No-Duty-to-Retreat-Violence-and-Values-in-American-History-and-Society-by-Richard-Maxwell-Brown.pdf
    • http://cmeinasaoo.duckdns.org/5b22b22b29b26b22/Workers-and-Nationalism-Czech-and-German-Social-Democracy-in-Habsburg-Austria-1890-1918-by-Jakub-S-Bene-.pdf
    • http://cmeinasaoo.duckdns.org/9b24b27b29b28b20/American-Dreams-American-Realities-An-Introduction-to-the-Uses-of

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