Malicious PDF — malware analysis report

Static analysis result for SHA-256 41c74b3881275f53…

MALICIOUS

PDF

32.7 KB Created: 2019-04-29 23:21:02 +01:00 Authoring application: mPDF 5.7
MD5: 3c9022c53573ffe10efa6eaada6e916a SHA-1: 508d302c39e7761cb57c71a62ce668f2c61c192b SHA-256: 41c74b3881275f5360a2f1f37629915fd909f57518afb6e95fd11b446ecbf7c3
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 poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent, likely to drive traffic to a compromised or malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9689

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/6a08a09a08a00a05/Niagara-to-the-Sea-Thousand-Islands-Rapids-Montreal-Quebec-Saguenay-River-by-Richelieu-and-Ontario-Navigation-Company.pdf
    • http://muicuiu.dumb1.com/6a08a09a08a01a05/R-and-O-Hotels-Manoir-Richelieu-Tadousac-Hotel-the-Lower-St-Lawrence-and-the-Saguenay-by-Richelieu-and-Ontario-Navigation-Co.pdf
    • http://muicuiu.dumb1.com/6a08a09a08a01a06/Historical-Sketch-of-the-Saguenay-Souvenir-of-the-Ontario-and-Quebec-Press-Excursion-to-Chicoutimi-Grand-Brule-and-St-Alphonse-on-the-9th-August-1883-by-Anonymous.pdf
    • http://muicuiu.dumb1.com/6a08a09a07a07a04/Carte-Des-Gites-Mineraux-Du-Quebec-Region-de-Laurentie-Saguenay-by-Quebec.pdf
    • http://muicuiu.dumb1.com/6a08a09a06a05a09/Report-of-the-Chief-Engineer-On-the-Survey-of-the-Line-for-the-Quebec-Saguenay-Railway-by-Unknown.pdf
    • http://muicuiu.dumb1.com/6a05a06a03a06a03/Statutes-of-the-Province-of-Ontario-Passed-in-the-Session-Held-in-the-Fifty-Second-Year-of-the-Reign-of-Her-Majesty-Queen-Victoria-Being-the-Third-Session-of-the-Sixth-Legislature-of-Ontario-Begun-and-Holden-at-Toronto-on-the-Twenty-Fourth-Day-of-Janua-by-Ontario-Ontario.pdf
    • http://muicuiu.dumb1.com/5a03a04a09a03a00/Frommer-s-Montreal-amp-Quebec-City-by-Patricia-Gajo.pdf
    • http://muicuiu.dumb1.com/5a03a05a00a05a00/Fodor-s-Montreal-and-Quebec-City-2008-by-Rachel-Klein.pdf
    • http://muicuiu.dumb1.com/8a04a01a05a06a04/The-Falls-of-Niagara-or-Tourist-s-Guide-to-This-Wonder-of-Nature-Including-Notices-of-the-Whirlpool-Islands-amp-c-and-a-Complete-Guide-Thro-the-Canadas-by-S-De-Veaux.pdf
    • http://muicuiu.dumb1.com/6a08a09a05a09a09/A-Tour-to-the-River-Saguenay-in-Lower-Canada-by-Charles-Lanman.pdf
    • http://muicuiu.dumb1.com/6a08a09a05a09a06/A-Tour-to-the-River-Saguenay-in-Lower-Canada-by-Charles-Lanman.pdf
    • http://muicuiu.dumb1.com/8a04a01a06a05a08/The-falls-of-Niagara-or-Tourist-s-guide-to-this-wonder-of-nature-including-notices-of-the-whirlpool-islands-amp-c-and-a-complete-guide-thro-the-Canadas-by-Samuel-De-Veaux.pdf
    • http://muicuiu.dumb1.com/8a02a06a06a00a00/Our-Volunteer-Army-Fact-and-Figures-42-000-Native-Born-Recruits-in-Ontario-25-000-the-Logical-Proportion-for-Quebec-December-14th-1916-by-La-Presse.pdf
    • http://muicuiu.dumb1.com/5a01a08a00a05a07/The-King-of-the-Thousand-Islands-by-Claude-Aubry.pdf
    • http://muicuiu.dumb1.com/6a08a09a06a05a08/Amassing-Power-J-B-Duke-and-the-Saguenay-River-1897-1927-by-David-Massell.pdf
    • http://muicuiu.dumb1.com/6a08a09a06a00a02/Amassing-Power-J-B-Duke-and-the-Saguenay-River-1897-1927-by-David-Massell.pdf
    • http://muicuiu.dumb1.com/7a09a02a09a06a07/French-Legends-The-Life-and-Legacy-of-Cardinal-Richelieu-by-Charles-River-Editors.pdf
    • http://muicuiu.dumb1.com/6a05a06a03a06a08/Statutes-of-the-Province-of-Ontario-Passed-in-the-Session-Held-in-the-Forty-Ninth-Year-of-the-Reign-of-Her-Majesty-Queen-Victoria-Being-the-Third-Session-of-the-Fifth-Legislature-of-Ontario-Begun-and-Holden-at-Toronto-on-the-Twenty-Eighth-Day-of-Janua-by-Ontario-Legislature.pdf
    • http://muicuiu.dumb1.com/5a05a04a06a00a02/Report-of-the-Ontario-Commission-on-the-Dehorning-of-Cattle-by-Ontario-Ontario-Commission-on-the-Dehor.pdf
    • http://muicuiu.dumb1.com/6a00a08a06a03a07/Rivers-of-Norfolk-River-Yare-River-Bure-River-Waveney-River-Nene-River-Ant-River-Thurne-North-Walsham-amp-Dilham-Canal-River-Wensum-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/6a08a09a07a07a04/Carte-Des-Gites-Mineraux-Du-Quebec-Region-de-Laurentie-Saguenay-b

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