Malicious PDF — malware analysis report

Static analysis result for SHA-256 7323ca58238761b9…

MALICIOUS

PDF

14.1 KB Created: 2019-04-30 05:28:16 +01:00 Authoring application: mPDF 5.7
MD5: 2ea7acf8ccca2980bb073a65f150e822 SHA-1: f1cea37c47b1f9cbd98951dd21f49f297df908b3 SHA-256: 7323ca58238761b9b567ee9570513bb7a53e54620e10e25c68c6f9d69136b801
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9200

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/3092095093097094/Screenplays-by-Stephen-King-Rose-Red-Kingdom-Hospital-Creepshow-the-Stand-Children-of-the-Corn-Cat-s-Eye-Pet-Sematary-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/1091095098098095090/STEPHEN-KING-NEW-COVER-SERIES-No-10-JOYLAND-ILLUSTRATED---1-500-by-Stephen-King-based-on-a-book-by-.pdf
    • http://loaminoo.linkpc.net/6092092091092099/Dolores-Claiborne-Nightmares-and-Dreamscapes-Stephen-King-11-2-boxed-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4092091090094099/Stephen-King-Goes-to-the-Movies-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/6097094094093091/King-Goes-to-the-Movies-Vijf-verfilmde-verhalen-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/1093094093094096/Sunset-Rising-Sunset-Vampire-5-by-Jaz-Primo.pdf
    • http://loaminoo.linkpc.net/3096099097092094/Chasing-Sunset-Sunset-1-by-Sami-Lee.pdf
    • http://loaminoo.linkpc.net/2096093098093/It-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4094091099094/11-22-63-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/7091091095098097/It-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4096094093095099/11-22-63-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4096095092093/UR-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4095094097098096/It-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/4099090094091096/UR-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/9096092096/11-22-63-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/8094097099091/11-22-63-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/2093090091097091/Pet-Sematary-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/7096099099092/Cell-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/1099093097098090/Pet-Sematary-by-Stephen-King.pdf
    • http://loaminoo.linkpc.net/3096091095098097/Cell-by-Stephen-King.pdf

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