Malicious PDF — malware analysis report

Static analysis result for SHA-256 3996064c4dc67e05…

MALICIOUS

PDF

19.4 KB Created: 2019-05-02 17:19:18 +01:00 Authoring application: mPDF 5.7
MD5: 7a46b7b57368e006df09b68f2dc197e3 SHA-1: 577ce72565abee2c60631bf8bd5d465d1e8b5ac5 SHA-256: 3996064c4dc67e0531632a32955204172fab05b20cd06e23fcabc597c869dbfd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious File: User Execution: Malicious Link

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted from this sample, but the link farm itself is sufficient evidence of a potentially harmful intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://kiteeearpdf.myhome.cx/6f218f211f215f217f212/Selected-Letters-of-A-M-A-Blanchet-Bishop-of-Walla-Walla-and-Nesqualy-1846-1879-by-Roberta-Stringham-Brown.pdf
    • http://kiteeearpdf.myhome.cx/1f214f219f216f212f219/The-River-of-Kings-by-Taylor-Brown.pdf
    • http://kiteeearpdf.myhome.cx/4f216f215f210f218f215/Fallen-Land-by-Taylor-Brown.pdf
    • http://kiteeearpdf.myhome.cx/8f216f212f218f219f213/Comedy-and-the-Feminine-Middlebrow-Novel-Elizabeth-Von-Arnim-and-Elizabeth-Taylor-by-Erica-Brown.pdf
    • http://kiteeearpdf.myhome.cx/2f210f211f212f218f215/The-Reinvention-of-Chastity-by-Eve-Vaughn.pdf
    • http://kiteeearpdf.myhome.cx/2f212f215f218/The-Age-of-Reinvention-by-Karine-Tuil.pdf
    • http://kiteeearpdf.myhome.cx/1f213f212f218f211/The-Reinvention-of-Moxie-Roosevelt-by-Elizabeth-Cody-Kimmel.pdf
    • http://kiteeearpdf.myhome.cx/8f216f212f219f219f216/Panther-Baby-A-Life-of-Rebellion-and-Reinvention-by-Jamal-Joseph.pdf
    • http://kiteeearpdf.myhome.cx/3f215f210f210f218f213/Radical-Reinvention-An-Unlikely-Return-to-the-Catholic-Church-by-Kaya-Oakes.pdf
    • http://kiteeearpdf.myhome.cx/8f214f211f218f214f215/The-Collapse-Of-Globalism-And-The-Reinvention-Of-The-World-by-John-Ralston-Saul.pdf
    • http://kiteeearpdf.myhome.cx/3f214f217f216f212/Simians-Cyborgs-and-Women-The-Reinvention-of-Nature-by-Donna-J-Haraway.pdf
    • http://kiteeearpdf.myhome.cx/6f215f213f218f213f216/Eye-of-the-Beholder-Johannes-Vermeer-Antoni-van-Leeuwenhoek-and-the-Reinvention-of-Seeing-by-Laura-J-Snyder.pdf
    • http://kiteeearpdf.myhome.cx/1f219f216f218f210f212/Enlightenment-in-Dispute-The-Reinvention-of-Chan-Buddhism-in-Seventeenth-Century-China-by-Jiang-Wu.pdf
    • http://kiteeearpdf.myhome.cx/7f215f215f211f212f213/Clockwork-Futures-The-Science-of-Steampunk-and-the-Reinvention-of-the-Modern-World-by-Brandy-Schillace.pdf
    • http://kiteeearpdf.myhome.cx/3f210f212f214f218f212/The-Reinvention-of-Mimi-Finnegan-The-Mimi-Chronicles-1-by-Whitney-Dineen.pdf
    • http://kiteeearpdf.myhome.cx/5f216f213f215f214f218/The-Brown-Driver-Briggs-Hebrew-and-English-Lexicon-by-Francis-Brown.pdf
    • http://kiteeearpdf.myhome.cx/5f219f218f217f219f210/Ten-After-Midnight-Vol-3-by-Roberta-Anglaise.pdf
    • http://kiteeearpdf.myhome.cx/4f210f211f210f218f216/The-Value-of-Vulnerability-by-Roberta-Pearce.pdf
    • http://kiteeearpdf.myhome.cx/2f211f216f217f215f215/The-Value-of-Vulnerability-by-Roberta-Pearce.pdf
    • http://kiteeearpdf.myhome.cx/5f216f217f213f214f210/This-Is-a-Hospital-Not-a-Zoo-by-Roberta-Karim.pdf
    • http://kiteeearpdf.myhome.cx/3f215f210f210f218f213/Radical-Reinvention-An-Unlikely-Return-to-the-Cathol