Malicious PDF — malware analysis report

Static analysis result for SHA-256 8542139d13c5472b…

MALICIOUS

PDF

12.4 KB Created: 2019-04-30 09:44:45 +01:00 Authoring application: mPDF 5.7
MD5: 205ec5b0a16af07a097c96437b28d873 SHA-1: ac2bb2baee1fe9d3d39aa70d378fafb52880742c SHA-256: 8542139d13c5472b390a3b50b4ce0fdacc672f25fc2fa0426f09b7196488e2c9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm with 32 external PDF links, suggesting a SEO poisoning or spamming campaign. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely used to redirect users to malicious content or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/3093098095094094/Easy-Virtue-Virtue-1-by-Mia-Asher.pdf In PDF document text
    • http://loaminoo.linkpc.net/3091091092/Sweetest-Venom-Virtue-2-by-Mia-Asher.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1096093090090092/Virtue-by-Amanda-Hocking.pdfIn PDF document text
    • http://loaminoo.linkpc.net/4099097098094099/Virtue-by-Gordon-Loud.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2090094097095/Real-Virtue-by-Katy-Lee.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3099095090096097/Virtue-V-2-by-Jane-Feather.pdfIn PDF document text
    • http://loaminoo.linkpc.net/9099093092099093/Virtue-by-Amanda-Hocking.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1090098096097090090/A-Paragon-of-Virtue-by-Christian-von-Ditfurth.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3095090098095091/Virtue-and-Vice-by-Kimberly-Brody.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2097094095095090/Virtue-and-Terror-by-Maximilien-Robespierre.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091093094094092093/Goethe-And-The-Fourth-Virtue-by-E-E-Papst.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1095092095098098/Solomon-s-Angels-by-Doreen-Virtue.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2097093090096091/Charity-Virtue-3-by-Deneane-Clark.pdfIn PDF document text
    • http://loaminoo.linkpc.net/8093090090090092/Nutrition-for-Intuition-by-Doreen-Virtue.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7096091090095/Messages-from-Your-Angels-by-Doreen-Virtue.pdfIn PDF document text
    • http://loaminoo.linkpc.net/5092096095095098/Machiavelli-s-Virtue-by-Harvey-Mansfield.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091091095098092099/Trust-Men-of-Virtue-5-by-Cait-Forester.pdfIn PDF document text
    • http://loaminoo.linkpc.net/6097095098091094/The-Crystal-Children-by-Doreen-Virtue.pdfIn PDF document text
    • http://loaminoo.linkpc.net/5091097091097095/The-Republic-of-Virtue-by-Paul-Lake.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2096093092093092/Ravenous-Virtue-by-Tracy-St-John.pdfIn PDF document text

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