Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e48b99e67a93599…

MALICIOUS

PDF

18.5 KB Created: 2019-04-30 02:33:41 +01:00 Authoring application: mPDF 5.7
MD5: 033425a1534b8c4ccda6e1498615be95 SHA-1: 068ae7b4d6916cc714da3bdbad2aa331ea8a00a4 SHA-256: 1e48b99e67a93599e89fb6cef1e6e07ddb484c7c13aadf91b52ae94b34810391
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific intent beyond link distribution is unclear due to the obfuscated document body, the sheer volume of links suggests a malicious distribution or traffic-generation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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/7a08a02a09a03a09/Dwight-D-Eisenhower-The-American-Presidents-34-by-Tom-Wicker.pdf
    • http://muicuiu.dumb1.com/7a08a03a00a07a06/The-Presidency-of-Dwight-D-Eisenhower-by-Chester-J-Pach-Jr-.pdf
    • http://muicuiu.dumb1.com/7a08a03a00a01a07/Dwight-D-Eisenhower-Soldier-and-President-by-Jeff-Young.pdf
    • http://muicuiu.dumb1.com/7a08a03a00a02a04/Past-Forgetting-My-Love-Affair-With-Dwight-D-Eisenhower-by-Kay-Summersby-Morgan.pdf
    • http://muicuiu.dumb1.com/7a08a02a09a05a05/Partners-in-Command-George-Marshall-amp-Dwight-Eisenhower-in-War-amp-Peace-by-Mark-Perry.pdf
    • http://muicuiu.dumb1.com/4a09a07a07a05a07/Masscult-and-Midcult-Essays-Against-the-American-Grain-by-Dwight-Macdonald.pdf
    • http://muicuiu.dumb1.com/4a02a02a04a09a05/To-the-Best-of-My-Ability-The-American-Presidents-by-James-M-McPherson.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a09a07/Theodore-Roosevelt-The-American-Presidents-26-by-Louis-Auchincloss.pdf
    • http://muicuiu.dumb1.com/9a02a03a09a08a06/Herbert-Hoover-The-American-Presidents-31-by-William-E-Leuchtenburg.pdf
    • http://muicuiu.dumb1.com/2a03a09a03a08a04/Crazy-Sh-t-Presidents-Said-The-Most-Surprising-Shocking-and-Stupid-Statements-Ever-Made-by-U-S-Presidents-from-George-Washington-to-Barack-Obama-by-Robert-Schnakenberg.pdf
    • http://muicuiu.dumb1.com/4a06a02a09a08a07/One-Nation-Under-Sex-How-the-Private-Lives-of-Presidents-First-Ladies-and-Their-Lovers-Changed-the-Course-of-American-History-by-Larry-Flynt.pdf
    • http://muicuiu.dumb1.com/5a01a00a00a04a02/Haywire-Hearts-and-Slide-Trombones-Stories-by-Dwight-Yates-by-Dwight-Yates.pdf
    • http://muicuiu.dumb1.com/7a08a02a09a06a00/Dwight-Swain-Master-Writing-Teacher-by-Dwight-V-Swain.pdf
    • http://muicuiu.dumb1.com/3a06a08a02a01a05/Eisenhower-by-Geoffrey-Perret.pdf
    • http://muicuiu.dumb1.com/3a07a02a01a09/Mr-Wicker-by-Maria-Alexander.pdf
    • http://muicuiu.dumb1.com/2a01a09a05a01a02/The-Wicker-King-by-K-Ancrum.pdf
    • http://muicuiu.dumb1.com/4a08a03a07a05a08/The-Wicker-King-by-K-Ancrum.pdf
    • http://muicuiu.dumb1.com/5a01a04a07a01/Fractured-Immortal-by-E-L-Wicker.pdf
    • http://muicuiu.dumb1.com/1a09a04a08a02a02/Dark-Lightning-by-Bethany-Wicker.pdf
    • http://muicuiu.dumb1.com/9a07a06a08a08/Eisenhower-in-War-and-Peace-by-Jean-Edward-Smith.pdf

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