Malicious PDF — malware analysis report

Static analysis result for SHA-256 41814a93bbf79a3b…

MALICIOUS

PDF

24.5 KB Created: 2019-04-30 02:36:00 +01:00 Authoring application: mPDF 5.7
MD5: 99257ae045b87885d1d8edac21afc74d SHA-1: 2ab44904b60ae7677c863d7bb4eab69a9d17ebaa SHA-256: 41814a93bbf79a3ba0ce9df87d5bf4d5b58aa647dcaacc1e909d13fda45c68de
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 pointing to external PDF files on the domain 'muicuiu.dumb1.com'. This pattern is indicative of a link farm or SEO poisoning technique, designed to drive traffic or manipulate search engine rankings. The ML classifier also flagged this document as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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/2a06a07a07a07a04/Profile-Social-Media-5-by-J-A-Huss.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/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/1a00a00a09a02a09a01/Social-Media-Im-Unternehmen-Ruhm-Oder-Ruin-Erfahrungslandkarte-Einer-Expedition-in-Die-Social-Media-Welt-by-Bert-Stach.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/2a05a06a09a07a07/Social-Stratification-in-the-United-States-The-American-Profile-Poster-by-Stephen-J-Rose.pdf
    • http://muicuiu.dumb1.com/9a08a05a01a06/Social-Media-for-the-Executive-by-Brian-E-Boyd-Sr-.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/2a03a00a09/Follow-Me-Social-Media-Murders-1-by-Angela-Clarke.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/2a06a08a04a08a04/Ten-Arguments-For-Deleting-Your-Social-Media-Accounts-Right-Now-by-Jaron-Lanier.pdf
    • http://muicuiu.dumb1.com/3a03a08a00a07a07/Profile-of-Evil-Profile-1-by-Alexa-Grace.pdf
    • http://muicuiu.dumb1.com/4a06a07a04a00a00/Profile-of-Fear-Profile-4-by-Alexa-Grace.pdf
    • http://muicuiu.dumb1.com/1a00a04a09a05a07a09/Buffalo-Heads-Media-Study-Media-Practice-Media-Pioneers-1973-1990-by-Peter-Weibel.pdf
    • http://muicuiu.dumb1.com/9a08a03a05a06a09/Social-Media-For-Bloggers-Learn-How-To-Drive-Hoards-Of-Social-Media-Traffic-To-Your-Blog-by-Liudas-Butku