Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c677da5b76d908…

MALICIOUS

PDF

26.0 KB Created: 2019-05-03 06:00:59 +01:00 Authoring application: mPDF 5.7
MD5: db7d57e3953bba004f64d1fccbc459bd SHA-1: 36c4486c7e6650b38405b2411935658ed4a155ce SHA-256: e3c677da5b76d9087713bf64cfa89a1290ab37dbe6dd150f8d1cf7ebe0ddf199
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains URLs that are part of this link farm. The primary attack pattern appears to be a link farm designed to drive traffic to other documents, likely for SEO manipulation or to host malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://muicuiu.dumb1.com/1a00a00a09a02a09a01/Social-Media-Im-Unternehmen-Ruhm-Oder-Ruin-Erfahrungslandkarte-Einer-Expedition-in-Die-Social-Media-Welt-by-Bert-Stach.pdf
    • http://muicuiu.dumb1.com/1a09a07a01a03a07/Social-Media-Marketing-Risk-Management-for-Safety-amp-Profit-How-to-Make-More-Money-Cut-Costs-amp-Mitigate-Your-Social-Media-Marketing-Risks-Now-Before-It-s-Too-Late-Shocking-Social-Media-Marketing-Safety-Security-Privacy-amp-Reputation-Threats-on-Soci-by-Anthony-D-Col-n.pdf
    • http://muicuiu.dumb1.com/9a08a03a05a06a09/Social-Media-For-Bloggers-Learn-How-To-Drive-Hoards-Of-Social-Media-Traffic-To-Your-Blog-by-Liudas-Butkus.pdf
    • http://muicuiu.dumb1.com/5a07a03a09a06a02/Social-Media-Roi-Managing-and-Measuring-Social-Media-Efforts-in-Your-Organization-by-Olivier-A-Blanchard.pdf
    • http://muicuiu.dumb1.com/9a06a02a01a01/Empowered-Women-of-Social-Media-Finding-Global-Unity-in-Social-Communities-by-Carla-Wynn-Hall.pdf
    • http://muicuiu.dumb1.com/6a04a02a01a09a02/The-Dragonfly-Effect-Quick-Effective-and-Powerful-Ways-to-Use-Social-Media-to-Drive-Social-Change-by-Jennifer-Aaker.pdf
    • http://muicuiu.dumb1.com/1a07a01a06a03a03/Like-Social-Media-2-by-J-A-Huss.pdf
    • http://muicuiu.dumb1.com/2a06a07a07a06a00/Status-Social-Media-4-by-J-A-Huss.pdf
    • http://muicuiu.dumb1.com/2a06a07a07a07a04/Profile-Social-Media-5-by-J-A-Huss.pdf
    • http://muicuiu.dumb1.com/9a08a05a01a06/Social-Media-for-the-Executive-by-Brian-E-Boyd-Sr-.pdf
    • http://muicuiu.dumb1.com/2a03a00a09/Follow-Me-Social-Media-Murders-1-by-Angela-Clarke.pdf
    • http://muicuiu.dumb1.com/2a07a05a02a09a04/We-Are-Not-Alone-The-Writer-s-Guide-to-Social-Media-by-Kristen-Lamb.pdf
    • http://muicuiu.dumb1.com/2a06a08a04a08a04/Ten-Arguments-For-Deleting-Your-Social-Media-Accounts-Right-Now-by-Jaron-Lanier.pdf
    • http://muicuiu.dumb1.com/1a01a01a05a04a03a09/Branding-Yourself-How-to-Use-Social-Media-to-Invent-or-Reinvent-Yourself-by-Erik-Deckers.pdf
    • http://muicuiu.dumb1.com/7a07a05a01a09a06/Web-of-Deceit-Misinformation-and-Manipulation-in-the-Age-of-Social-Media-by-Anne-P-Mintz.pdf
    • http://muicuiu.dumb1.com/1a01a00a09a06a03a08/Gaming-in-Social-Locative-and-Mobile-Media-by-Larissa-Hjorth.pdf
    • http://muicuiu.dumb1.com/1a00a04a09a05a07a09/Buffalo-Heads-Media-Study-Media-Practice-Media-Pioneers-1973-1990-by-Peter-Weibel.pdf
    • http://muicuiu.dumb1.com/2a07a04a05/American-Girls-Social-Media-and-the-Secret-Lives-of-Teenagers-by-Nancy-Jo-Sales.pdf
    • http://muicuiu.dumb1.com/1a09a07a02a07a09/Inbound-Marketing-Get-Found-Using-Google-Social-Media-and-Blogs-by-Brian-Halligan.pdf
    • http://muicuiu.dumb1.com/9a07a09a02a07a09/Handbook-of-Research-on-Effective-Advertising-Strategies-in-the-Social-Media-Age-by-Nurdan-Oncel-Ta-K-Ran.pdf
    • http://muicuiu.dumb1.com/5a07a03a09a06a02/Social