Malicious PDF — malware analysis report

Static analysis result for SHA-256 b24a06aa5e6284e6…

MALICIOUS

PDF

17.6 KB Created: 2019-05-02 01:47:03 +01:00 Authoring application: mPDF 5.7
MD5: e4c8247fbb74c4fa803456bcfd194204 SHA-1: 7a6a2c7c65773a3304a4e6b79443f025dd419d6f SHA-256: b24a06aa5e6284e63dd877572dda785c5b1f659936cd9919514a09b30ea82642
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/8a03a01a04a06/Princess-of-the-Wild-Swans-by-Diane-Zahler.pdf
    • http://muicuiu.dumb1.com/2a09a08a02a07a07/The-Thirteenth-Tale-by-Diane-Setterfield.pdf
    • http://muicuiu.dumb1.com/9a04a03a00a03a00/The-Thirteenth-Tale-by-Diane-Setterfield.pdf
    • http://muicuiu.dumb1.com/2a05a00a09a06a06/The-Thirteenth-Tale-by-Diane-Setterfield.pdf
    • http://muicuiu.dumb1.com/3a00a06a02a05a00/Seducing-the-Princess-Shillings-Agency-3-by-Diane-Alberts.pdf
    • http://muicuiu.dumb1.com/1a01a05a07a04a03/Sir-Princess-Petra-s-Talent-The-Pen-Pieyu-Adventures-2-by-Diane-Mae-Robinson.pdf
    • http://muicuiu.dumb1.com/2a09a08a08a03/A-Congregation-of-Jackals-by-S-Craig-Zahler.pdf
    • http://muicuiu.dumb1.com/1a01a06a02a01a01/The-Thirteenth-Unicorn-by-W-D-Newman.pdf
    • http://muicuiu.dumb1.com/4a01a04a01a04a04/Australia-s-Shame-A-Collaboration-by-Diane-Mancuso-and-Simon-Houlders-by-Diane-Mancuso.pdf
    • http://muicuiu.dumb1.com/2a09a01a03a08a08/The-Princess-and-the-Peer-The-Princess-Brides-1-by-Tracy-Anne-Warren.pdf
    • http://muicuiu.dumb1.com/9a00a01a02a06/The-Princess-Test-The-Princess-Tales-2-by-Gail-Carson-Levine.pdf
    • http://muicuiu.dumb1.com/3a06a06a02a01/The-Princess-and-the-Goblin-Princess-Irene-and-Curdie-1-by-George-MacDonald.pdf
    • http://muicuiu.dumb1.com/3a09a07a06a01a01/The-Princess-Companion-A-Retelling-of-The-Princess-and-the-Pea-The-Four-Kingdoms-1-by-Melanie-Cellier.pdf
    • http://muicuiu.dumb1.com/2a00a04a09a01a02/Believe-Me-I-Never-Felt-a-Pea-The-Story-of-the-Princess-and-the-Pea-as-Told-by-the-Princess-by-Nancy-Loewen.pdf
    • http://muicuiu.dumb1.com/3a08a09a09a00a04/The-Princess-Diaries-Guide-to-Life-Discover-Your-Inner-Princess-by-Meg-Cabot.pdf
    • http://muicuiu.dumb1.com/8a06a03a04a02a06/The-Thirteenth-Step-by-Libba-Bray.pdf
    • http://muicuiu.dumb1.com/4a03a04a07a06a04/Nyteria-Rising-The-Thirteenth-3-by-G-L-Twynham.pdf
    • http://muicuiu.dumb1.com/5a05a02a00a08/The-Dragon-Princess-Tales-of-the-Frog-Princess-6-by-E-D-Baker.pdf
    • http://muicuiu.dumb1.com/2a01a02a04a08a01/The-Measure-of-a-Princess-Gun-Princess-Royale-2-by-Albert-Ruckholdt.pdf
    • http://muicuiu.dumb1.com/5a01a00a02/Stolen-Princess-Princess-Series-2-by-Alexa-Riley.pdf
    • http://muicuiu.dumb1.com/2a09a01a03a08a08/The-Princess-

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