Malicious PDF — malware analysis report

Static analysis result for SHA-256 1198f54477169f84…

MALICIOUS

PDF

19.8 KB Created: 2019-05-01 17:16:11 +01:00 Authoring application: mPDF 5.7
MD5: 4e0a8915ab6db177556b63a89840a965 SHA-1: 82d13bfff5512edff98f5300e08f64f67b5e8377 SHA-256: 1198f54477169f84f6936f3a8fd6dc5b0cec86c984f3f5f34e806a390edeb6de
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a critical heuristic for containing a mass external PDF link farm, with numerous links pointing to external resources. While the document body is unreadable, the presence of 24 external links suggests an attempt to manipulate search engine results or distribute further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://xiixmcuin.linkpc.net/5207204204200209/The-Choice-of-the-People-Debating-the-Electoral-College-by-Thomas-E-Cronin.pdf
    • http://xiixmcuin.linkpc.net/5207204203209209/The-Electoral-College-by-Lucius-Wilmerding.pdf
    • http://xiixmcuin.linkpc.net/5207204204203202/The-Electoral-College-by-Michael-Burgan.pdf
    • http://xiixmcuin.linkpc.net/5207204203205205/Taming-the-Electoral-College-by-Robert-Bennett.pdf
    • http://xiixmcuin.linkpc.net/5207204203202206/Why-the-Electoral-College-Is-Bad-for-America-by-George-C-Edwards-III.pdf
    • http://xiixmcuin.linkpc.net/5207204205201202/Understanding-the-Electoral-College-by-Catherine-McGrew-Jaime.pdf
    • http://xiixmcuin.linkpc.net/5207204203204207/Understanding-the-Electoral-College-by-Catherine-McGrew-Jaime.pdf
    • http://xiixmcuin.linkpc.net/5207204203205207/Securing-Democracy-Why-We-Have-An-Electoral-College-by-Gary-L-Gregg-II.pdf
    • http://xiixmcuin.linkpc.net/5207204204204203/Fixing-the-Orient-An-Improved-Philippine-Electoral-System-by-Thomas-Hodge.pdf
    • http://xiixmcuin.linkpc.net/5207204203205208/Political-Parties-and-Electoral-Change-Party-Responses-to-Electoral-Markets-by-Peter-Mair.pdf
    • http://xiixmcuin.linkpc.net/2203203200201/The-People-s-Choice-From-Washington-to-Harding-A-Study-in-Democracy-by-Herbert-Agar.pdf
    • http://xiixmcuin.linkpc.net/4207201205200205/How-to-Get-College-Scholarships---Online-Resources-and-Tips-Report-by-Thomas-Neville.pdf
    • http://xiixmcuin.linkpc.net/8206209209203/Thomas-s-Choice-Scanguards-Vampires-8-by-Tina-Folsom.pdf
    • http://xiixmcuin.linkpc.net/1208204206200201/Cronin-s-Key-Cronin-s-Key-1-by-N-R-Walker.pdf
    • http://xiixmcuin.linkpc.net/9200206201200205/Good-Choice---Ein-Milliard-r-nach-meinem-Geschmack-by-Thomas-Kredelbach.pdf
    • http://xiixmcuin.linkpc.net/5205203209203207/The-Formation-of-College-English-Rhetoric-and-Belles-Lettres-in-the-British-Cultural-Provinces-by-Thomas-P-Miller.pdf
    • http://xiixmcuin.linkpc.net/8201206207205202/Wolfson-College-Cambridge-Alumni-of-Wolfson-College-Cambridge-Fellows-of-Wolfson-College-Cambridge-Presidents-of-Wolfson-College-by-Source-Wikipedia.pdf
    • http://xiixmcuin.linkpc.net/9205202206201204/An-Address-Delivered-in-the-Senate-Chamber-of-Maryland-Before-the-Association-of-the-Theta-Delta-Phi-of-St-John-s-College-4th-July-1837-by-Thomas-Holme-Hagner.pdf
    • http://xiixmcuin.linkpc.net/5206200200207206/ADHD-The-College-Experience-how-to-make-it-through-college-and-reach-your-potential-by-embracing-your-unique-strengths-by-Arash-Zaghi.pdf
    • http://xiixmcuin.linkpc.net/2202207208203209/Why-People-Die-by-Suicide-by-Thomas-E-Joiner.pdf