Malicious PDF — malware analysis report

Static analysis result for SHA-256 377c4d3557a7e3d8…

MALICIOUS

PDF

21.7 KB Created: 2019-05-01 17:15:33 +01:00 Authoring application: mPDF 5.7
MD5: 2bd41dcf946d0d19c3fb24dbadc0e6a7 SHA-1: 7577784b3798f509aeaee02e3a19d670834eb98f SHA-256: 377c4d3557a7e3d8297d8ff189e204b73e1d9283f3673324246b5759563387ba
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. The ML classifier also flagged the PDF as malicious with high confidence. The embedded URLs point to various literary works, but the sheer volume and the domain suggest a deceptive purpose, likely to manipulate search engine results or lead users to malicious sites. No scripts were extracted from this sample.

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/6f217f213f212f216f211/PRIDE-AND-PREJUDICE-Jane-Austen-author-of-Mansfield-Park-Persuasion-Sense-and-Sensibility-Northanger-Pride-and-Prejudice-Annotated-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/1f211f217f217f211f210f216/NORTHANGER-ABBEY---JANE-AUSTEN-Author-of-Mansfield-Park-Persuasion-Sense-and-Sensibility-Northanger-Pride-and-Prejudice-Annotated-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/1f211f217f216f219f213f217/Jane-Austen-Collection-Seven-Novels-in-One-Pride-and-Prejudice-Persuasion-Mansfield-Park-Northanger-Abbey-Sense-and-Sensibility-Emma-Lady-Susan-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/6f213f213f213f215f214/Emma-Mansfield-Park-Sense-and-Sensibility-Pride-and-Prejudice-Northanger-Abbey-amp-Persuasion-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/1f211f217f216f219f212f218/Jane-Austen-Pride-and-Prejudice---Northanger-Abbey---Persuasion-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/1f211f217f216f218f217f218/Pride-and-prejudice-Northanger-Abbey-Persuasion-Emma-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/1f211f217f217f211f210f212/Reading-Texts-in-Jane-Austen-Northanger-Abbey-Pride-and-Prejudice-and-Persuasion-by-Murat-Seckin.pdf
    • http://kiteeearpdf.myhome.cx/4f217f214f218f210f212/Pride-and-Prejudice-A-Novel-In-Three-Volumes-Annotated-and-Restored-to-1813-Egerton-First-Edition-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/3f218f219f218f217f215/Pride-and-Prejudice-and-Kitties-A-Cat-Lover-s-Romp-through-Jane-Austen-s-Classic-by-Pamela-Jane.pdf
    • http://kiteeearpdf.myhome.cx/2f217f216f212f214f215/Lydia-Bennet-s-Story-A-Sequel-to-Jane-Austen-s-Pride-and-Prejudice-by-Jane-Odiwe.pdf
    • http://kiteeearpdf.myhome.cx/7f218f219f217f217/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/3f214f219f213f210f211/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/5f215f214f214f210f214/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/5f215f214f213f216f213/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/5f212f218f216f216f217/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/5f216f211f216f216f210/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/6f211f211f214f214f213/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/3f218f212f218f216f210/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/6f217f214f213f211f219/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/6f215f213f215f215f211/Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://kiteeearpdf.myhome.cx/6f213f213f213f215f214/Emma-Mansfield-Park-Sense-and-Sensibility-Pride-

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