Malicious PDF — malware analysis report

Static analysis result for SHA-256 34eac69f6c591919…

MALICIOUS

PDF

20.0 KB Created: 2019-04-30 04:04:16 +01:00 Authoring application: mPDF 5.7
MD5: 86a37c20031513b41862775709a1de24 SHA-1: 9403840162c596f2d05ec3447cd88dbf07625edc SHA-256: 34eac69f6c591919260fdd74ce192b753d10cb62cd51822afb01e55e7db22ece
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for containing a mass external link farm, directing users to a domain with a suspicious structure. While the ML classifier also flagged it as malicious, the specific intent appears to be driving traffic to a large number of external PDF documents, rather than executing a direct payload from this file. The URLs themselves are long and appear to be book titles, but the domain and the sheer number of links suggest a malicious intent, possibly for SEO manipulation or to host further malicious content.

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://muicuiu.dumb1.com/1a00a00a02a04a01a08/The-Princess-and-the-Goblin-by-George-MacDonald-Children-s-Fantasy-Novel-Illustrated-by-Jessie-Willcox-Smith-September-6-1863---May-3-1935-Was-One-of-the-Most-Prominent-Female-Illustrators-in-the-United-States-During-the-Golden-Age-of-American-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/1a02a09a08a07a08/Lilith-in-a-New-Light-Essays-on-the-George-MacDonald-Fantasy-Novel-by-Lucas-H-Harriman.pdf
    • http://muicuiu.dumb1.com/1a02a06a05a06a00/The-Light-Princess-and-Other-Fairy-Stories-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a00a00/3000-Quotations-from-the-Writings-of-George-MacDonald-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a03a06a03a04a04/The-George-MacDonald-Omnibus-The-Princess-and-the-Goblin-The-Princess-and-Curdie-At-the-Back-of-the-North-Wind-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a03a09a09a04a04/The-George-MacDonald-Treasury-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/6a07a06a04a00a08/The-Wolf-of-Dorian-Gray-The-Wolf-of-Dorian-Gray-1-by-Brian-S-Ference.pdf
    • http://muicuiu.dumb1.com/4a01a01a03a04a04/Pale-Gray-For-Guilt-by-John-D-MacDonald.pdf
    • http://muicuiu.dumb1.com/1a09a03a02a06a06/Phantastes-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/3a08a00a08a08/Phantastes-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/9a00a08a05a06a06/Phantastes-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/1a08a00a05a06a09/The-Princess-and-Curdie-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a00a06/Phantastes-Lilith-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a03a06a04a09a09/The-Light-Princess-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/3a02a03a08a01a03/The-Marquis-Secret-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/8a03a01a01a01/The-Laird-s-Inheritance-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/7a09a05a03a04/The-Light-Princess-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a00a02a08a04a04/The-Light-Princess-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/8a06a06a02a00/The-Baron-s-Apprenticeship-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a00a02a09a07a07/The-Day-Boy-and-the-Night-Girl-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/2a03a06a03a04a04/The-George-MacDonald-Omnibus-The-Princess-and-the-Goblin-The-Princess-and-Curdie-At-the-Back-of