Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5a819915e8e438b…

MALICIOUS

PDF

13.4 KB Created: 2019-04-30 23:23:52 +01:00 Authoring application: mPDF 5.7
MD5: 8d27a2edca77a8cfe2e7537ab8d5ec19 SHA-1: 45314d274479a1fb3e551b66c9a248335e89f17d SHA-256: f5a819915e8e438b2dc6be264aded6b731330a2e169d53d485d024cf3747327a
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified as a PDF SEO link farm. While the URLs themselves are currently marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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://loaminoo.linkpc.net/7094098094093094/Big-Book-of-The-Hamptons-The-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098091094094/The-Big-Book-of-the-Hamptons-by-Assouline.pdf
    • http://loaminoo.linkpc.net/3093096096097091/It-Happens-in-the-Hamptons-by-Holly-Peterson.pdf
    • http://loaminoo.linkpc.net/4097091092095092/Summer-Sins-Hot-in-the-Hamptons-3-by-Jennifer-Probst.pdf
    • http://loaminoo.linkpc.net/8091099099096/Trolls-in-the-Hamptons-Willow-Tate-1-by-Celia-Jerome.pdf
    • http://loaminoo.linkpc.net/9095094094096098/Savoring-the-Hamptons-Discovering-the-Food-and-Wine-of-Long-Island-s-East-End-by-Silvia-Lehrer.pdf
    • http://loaminoo.linkpc.net/7094098094093092/Art-amp-Design-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098092097095/Les-Must-de-Cartier-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098094092094/Leather-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098094090094/Fashion-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098092097090/Cadillac-110-Years-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098091094090/Inspired-Styles-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098094094092/Nigel-Goes-to-France-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098092097099/Cabinet-de-Curiosites-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098094093093/Paper-Library-Candle-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098095092098/Dior-Jewelry-by-Assouline-Publishing.pdf
    • http://loaminoo.linkpc.net/7094098093099095/Bon-Voyage-Travel-Suitcase-by-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098095093091/Dior-Perfume-by-Assouline-Publishing.pdf
    • http://loaminoo.linkpc.net/5095098097090097/Simenon-A-Biography-by-Pierre-Assouline.pdf
    • http://loaminoo.linkpc.net/7094098091094096/Parsons-Designers-The-School-of-Fashion-by-Assouline.pdf
    • http://loaminoo.linkpc.net/709

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