Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e16ebcc3d83eb5a…

MALICIOUS

PDF

16.8 KB Created: 2019-04-29 23:03:57 +01:00 Authoring application: mPDF 5.7
MD5: 2004dc7fdf6335951f20dc29e7550f2c SHA-1: 0dffea49ce16fe89640257447a75717555ec0a9c SHA-256: 9e16ebcc3d83eb5a11c1a5c4ea1bc810e1c0e6f2149c170155b488683c5411d0
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. While the specific intent of the links is unclear due to their benign reputation, the sheer volume and the ML classification suggest a malicious purpose, potentially related to driving traffic or hosting malware. 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://loaminoo.linkpc.net/6095099091094098/Worst-Case-Scenarios-by-Cass-R-Sunstein.pdf
    • http://loaminoo.linkpc.net/4090097093090094/Bulletproof-Web-Design-Improving-flexibility-and-protecting-against-worst-case-scenarios-with-XHTML-and-CSS-by-Dan-Cederholm.pdf
    • http://loaminoo.linkpc.net/5091094097091093/Democracy-and-the-Problem-of-Free-Speech-by-Cass-R-Sunstein.pdf
    • http://loaminoo.linkpc.net/1090092093096097098/Animal-Rights-Current-Debates-and-New-Directions-by-Cass-R-Sunstein.pdf
    • http://loaminoo.linkpc.net/1095098098093099/The-Worst-Case-Scenario-Cookery-Club-by-Chrissie-Manby.pdf
    • http://loaminoo.linkpc.net/6095099092090097/The-Worst-Case-Scenario-Almanac-Politics-by-David-Borgenicht.pdf
    • http://loaminoo.linkpc.net/5090092098094097/The-Worst-case-Scenario-Survival-Handbook-Christmas-by-Joshua-Piven.pdf
    • http://loaminoo.linkpc.net/6095099092090092/The-Worst-Case-Scenario-Survival-Handbook-Paranormal-by-David-Borgenicht.pdf
    • http://loaminoo.linkpc.net/1096092092095093/Worst-Case-Scenario-Ultimate-Adventure-2-Mars-by-Hena-Kahn.pdf
    • http://loaminoo.linkpc.net/6095099092096099/The-Worst-Case-Scenario-Survival-Handbook-Golf-by-Joshua-Piven.pdf
    • http://loaminoo.linkpc.net/6095099092096098/The-Worst-Case-Scenario-Survival-Handbook-Junior-Edition-by-David-Borgenicht.pdf
    • http://loaminoo.linkpc.net/6095099092090098/The-Worst-Case-Scenario-Survival-Handbook-Middle-School-by-David-Borgenicht.pdf
    • http://loaminoo.linkpc.net/8090099094094098/Life-Hacks-Handbook-How-to-Deal-with-the-Worst-Case-Situations-of-the-21st-Century-by-Hugo-Villabona.pdf
    • http://loaminoo.linkpc.net/6095099091094091/The-Worst-Case-Scenario-Survival-Handbook-Life-Life-by-Joshua-Piven.pdf
    • http://loaminoo.linkpc.net/3097094099092092/The-Worst-Witch-Saves-The-Day-Worst-Witch-Book-5-by-Jill-Murphy.pdf
    • http://loaminoo.linkpc.net/4092096092095097/The-Worst-Witch-to-the-Rescue-Worst-Witch-6-by-Jill-Murphy.pdf
    • http://loaminoo.linkpc.net/9090098099097/The-Worst-Witch-Strikes-Again-Worst-Witch-2-by-Jill-Murphy.pdf
    • http://loaminoo.linkpc.net/6095099092093097/The-Marriage-Scenarios-by-Ingmar-Bergman.pdf
    • http://loaminoo.linkpc.net/6095099091094097/Dare-to-Be-Different-Scenarios-1-2-by-Nicole-O-39-Dell.pdf
    • http://loaminoo.linkpc.net/6095099092090090/Futurevision-Scenarios-for-the-world-in-2040-by-Richard-Watson.pdf
    • http://loaminoo.linkpc.net/6095099092096099/The-Worst-Case-Scenario-Survival-Handbook-Golf-by

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