Malicious PDF — malware analysis report

Static analysis result for SHA-256 72fa4618f3203a92…

MALICIOUS

PDF

16.3 KB Created: 2019-04-28 05:50:12 +01:00 Authoring application: mPDF 5.7
MD5: 9b05be33e6434cbf0dd203a78fc29593 SHA-1: 72e7ee48dff4a8849563d87bc31f91de44bc3c98 SHA-256: 72fa4618f3203a928e2ad55f9c99bb54fe0a11ced9352762d2acfae1c6dba4cc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded URLs, identified as a link farm. The primary heuristic indicates a mass external PDF link farm, suggesting the document's purpose is to redirect users to numerous other PDF files hosted externally. While no scripts were explicitly extracted, the nature of PDF link farms often involves JavaScript to facilitate redirection or obfuscation. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/5090092095095096/The-Grove-Centenary-Editions-of-Samuel-Beckett-Boxed-Set-Contains-Novels-I-and-II-of-Samuel-Beckett-The-Dramatic-Works-of-Samuel-Beckett-and-The-Poems-Short-Fiction-and-Critcism-of-Samuel-Beckett-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/7099098092096/Novels-II-of-Samuel-Beckett-Volume-II-of-The-Grove-Centenary-Editions-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/1093096096097099/How-it-Is-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/7092092097093099/Eh-Joe-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/1093097096090099/Worstward-Ho-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/7093090095090097/Proust-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/4097097094099098/Watt-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/2091095092093099/Murphy-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/2099094095091099/Watt-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/9093099091093091/Waiting-for-Godot-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/2097096094092092/Ends-and-Odds-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/7098090094099/Mercier-and-Camier-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/5098095091094090/Samuel-Beckett-by-Anthony-Cronin.pdf
    • http://loaminoo.linkpc.net/1098094090090096/Waiting-for-Godot-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/1099098090096096/First-Love-and-Other-Novellas-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/8090094090099/Collected-Shorter-Plays-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/3093091099095093/Nohow-On-Company-Ill-Seen-Ill-Said-Worstward-Ho-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/1099097099090094/Krapp-s-Last-Tape-and-Other-Dramatic-Pieces-by-Samuel-Beckett.pdf
    • http://loaminoo.linkpc.net/7091095096099099/Samuel-Beckett-and-the-Terror-of-Literature-by-Christopher-Langlois.pdf
    • http://loaminoo.linkpc.net/4095096099098099/Waiting-for-Godot-A-Tragicomedy-in-Two-Acts-by-Samuel-Beckett.pdf

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