Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee2994e046aa72f…

MALICIOUS

PDF

17.1 KB Created: 2019-04-30 03:28:40 +01:00 Authoring application: mPDF 5.7
MD5: 64939936af0554185d0665297f3c3430 SHA-1: 4f3adff7dfef1508e4fe701592d484b774261ac1 SHA-256: 3ee2994e046aa72f36117cbf21ae8b01967cc5c47d089046b51fe89f61fe3275
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, forming a link farm. The heuristic PDF_SEO_LINK_FARM indicates this is a technique to artificially inflate search engine rankings or to distribute malicious content. While the specific URLs extracted were classified as benign, the sheer volume and the nature of the heuristic suggest a malicious intent to redirect users. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/8a06a04a09a03a01/Vlad-III-Dracula-The-Life-and-Times-of-the-Historical-Dracula-by-Kurt-W-Treptow.pdf
    • http://muicuiu.dumb1.com/4a07a06a06a03a07/Dracula-Prince-of-Many-Faces-His-Life-and-His-Times-by-Radu-Florescu.pdf
    • http://muicuiu.dumb1.com/8a06a04a08a01a04/Vlad-Dracula-The-Dragon-Prince-by-Michael-Augustyn.pdf
    • http://muicuiu.dumb1.com/4a08a02a00a05a07/Vlad-the-Impaler-In-Search-of-the-Real-Dracula-by-M-J-Trow.pdf
    • http://muicuiu.dumb1.com/8a06a04a09a04a00/Dracula-s-Wars-Vlad-the-Impaler-and-His-Rivals-by-James-Waterson.pdf
    • http://muicuiu.dumb1.com/2a01a08a06a02a09/The-Dracula-Tape-Dracula-Series-1-by-Fred-Saberhagen.pdf
    • http://muicuiu.dumb1.com/7a04a03a01a06a07/Countess-Dracula-The-Life-and-Times-of-Elisabeth-Bathory-the-Blood-Countess-by-Tony-Thorne.pdf
    • http://muicuiu.dumb1.com/4a01a00a04a04a01/Dracula-Returns-Dracula-1-by-Robert-Lory.pdf
    • http://muicuiu.dumb1.com/8a06a04a09a01a02/The-Carpathian-Assignment-The-True-History-of-the-Apprehension-and-Death-of-Dracula-Vlad-Tepes-Count-and-Voivode-of-the-Principality-of-Transylvania-by-Chip-Wagar.pdf
    • http://muicuiu.dumb1.com/5a09a05a00a06a05/Dracula-Cha-Cha-Cha-Anno-Dracula-3-by-Kim-Newman.pdf
    • http://muicuiu.dumb1.com/2a04a05a05a07a03/Judgment-of-Tears-Anno-Dracula-1959-Anno-Dracula-3-by-Kim-Newman.pdf
    • http://muicuiu.dumb1.com/7a03a07a00a07a01/Anno-Dracula-1923-Vampire-Romance-Anno-Dracula-2-5-by-Kim-Newman.pdf
    • http://muicuiu.dumb1.com/4a01a06a02a03a09/Princess-Dracula-Princess-Dracula-1-by-John-Patrick-Kennedy.pdf
    • http://muicuiu.dumb1.com/9a06a03a00a09/Las-Lugosi-s-Dracula-The-Cradle-of-Evil-Dracula-2-by-Las-Lugosi.pdf
    • http://muicuiu.dumb1.com/2a01a08a06a05a01/The-Secret-Life-Of-Laszlo-Count-Dracula-by-Roderick-Anscombe.pdf
    • http://muicuiu.dumb1.com/5a09a05a00a06a06/Stoker-Day-One-by-Dracula.pdf
    • http://muicuiu.dumb1.com/7a01a06a07a03a04/Dracula-by-Bram-Stoker.pdf
    • http://muicuiu.dumb1.com/2a05a00a07a09a06/Dracula-by-Bram-Stoker.pdf
    • http://muicuiu.dumb1.com/7a00a07a08a06a08/Dracula-by-Bram-Stoker.pdf
    • http://muicuiu.dumb1.com/2a07a06a08a00a08/Dracula-by-Bram-Stoker.pdf
    • http://muicuiu.dumb1.com/4a01a00a04a04a01/

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