Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d119c6a94bdb68…

MALICIOUS

PDF

15.6 KB Created: 2019-05-04 14:22:51 +01:00 Authoring application: mPDF 5.7
MD5: e81b8677cf2dec95cbb6c3111e5cd5b4 SHA-1: 94d5b159a3ecfef936b4cfeaa9c4f3a51ad1410f SHA-256: b5d119c6a94bdb683dffbeca949e4bc1afc0361263bbb9be598f7801bf143ccd
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/1099099095096097/Circus-of-the-Darned-Ben-and-Fran-2-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/1090097090096097/Got-Fangs-Ben-and-Fran-1-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/7092094090098/Confessions-of-a-Vampire-s-Girlfriend-Ben-and-Fran-1-2-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/1091092097095094/The-Year-My-Life-Went-Down-the-Loo-Emily-1-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/3098095097099099/They-Wear-WHAT-Under-Their-Kilts-Emily-2-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/2095094090093/Life-Love-and-the-Pursuit-of-Hotties-Emily-5-by-Katie-Maxwell.pdf
    • http://loaminoo.linkpc.net/4095095097090098/Circus-of-the-Scars-The-True-Inside-Odyssey-of-a-Modern-Circus-Sideshow-by-Jan-T-Gregor.pdf
    • http://loaminoo.linkpc.net/1092098090093091/Circus-Summer-Circus-of-Curiosities-1-by-Kailin-Gow.pdf
    • http://loaminoo.linkpc.net/1091095092090098098/Maxwell-The-Rise-and-Fall-of-Robert-Maxwell-and-His-Empire-by-Roy-Greenslade.pdf
    • http://loaminoo.linkpc.net/7093099098095/The-Maxwell-Leadership-Bible-by-John-C-Maxwell.pdf
    • http://loaminoo.linkpc.net/4090094090091099/Ned-s-Circus-of-Marvels-Ned-s-Circus-of-Marvels-1-by-Justin-Fisher.pdf
    • http://loaminoo.linkpc.net/9098094095/Chocolate-Covered-Katie-Over-80-Delicious-Recipes-That-Are-Secretly-Good-for-You-by-Katie-Higgins.pdf
    • http://loaminoo.linkpc.net/3097096092095098/Katie-s-Hellion-amp-Katie-s-Hope-Rhyn-Trilogy-1-2-by-Lizzy-Ford.pdf
    • http://loaminoo.linkpc.net/2093094098095099/The-Fran-Lebowitz-Reader-by-Fran-Lebowitz.pdf
    • http://loaminoo.linkpc.net/3091095093094099/Katie-and-the-Mustang-Book-1-Hoofbeats-Katie-and-the-Mustang-1-by-Kathleen-Duey.pdf
    • http://loaminoo.linkpc.net/1090099096092093097/Katie-and-the-Mustang-Hoofbeats-Katie-and-the-Mustang-4-by-Kathleen-Duey.pdf
    • http://loaminoo.linkpc.net/1090099096091098093/Katie-and-the-Mustang-2-Hoofbeats-Katie-and-the-Mustang-2-by-Kathleen-Duey.pdf
    • http://loaminoo.linkpc.net/1091093099092097091/Der-Skandal-by-Fran-Ray.pdf
    • http://loaminoo.linkpc.net/4095090092095095/Out-of-Her-Dreams-by-Fran-Lee.pdf
    • http://loaminoo.linkpc.net/1097097095092093/Uncertainly-Yours-by-Fran-Lee.pdf
    • http://loaminoo.linkpc.net/7093099098095/The-Maxwell-Leadership-Bib

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