Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d124036cd19472b…

MALICIOUS

PDF

12.9 KB Created: 2019-05-02 06:07:06 +01:00 Authoring application: mPDF 5.7
MD5: d307250f80ab03fe3a766defbba24ffc SHA-1: 0bc841bafc74f03548c471921d7b7663efec66ae SHA-256: 1d124036cd19472bd4106f1aaa9a4260c4a1ab6be3eae41117c1cc04a58395ae
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, hosted on the domain 'cefasfese.4pu.com'. This technique is often used for SEO poisoning or to redirect users to malicious content. While the specific intent beyond linking is unclear due to the lack of executable scripts, the sheer volume and nature of the links suggest a malicious distribution or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9631

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://cefasfese.4pu.com/7731730733733/The-Complete-Short-Stories-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/9738735738731738/The-Letters-Of-Evelyn-Waugh-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/6735736738735/Scoop-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/1737732732730739/The-Loved-One-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/1739733737735736/The-Loved-One-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/2732737738730738/The-Loved-One-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/2739732739730735/Helena-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/2739732735738736/A-Handful-of-Dust-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/1730734731730739/Officers-and-Gentlemen-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/3735735734733739/Brideshead-Revisited-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/8732731732734/A-Handful-of-Dust-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/3731739736732730/Brideshead-Revisited-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/3735733736734734/A-Handful-of-Dust-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/5730734735739732/Decline-and-Fall-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/3730734736730734/Brideshead-Revisited-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/4733739730730733/A-Handful-Of-Dust-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/4730731731732730/Brideshead-Revisited-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/1737732731737735/Brideshead-Revisited-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/7733737730732/Vile-Bodies-by-Evelyn-Waugh.pdf
    • http://cefasfese.4pu.com/9738735739735733/Evelyn-Waugh-A-Biography-by-Christopher-Sykes.pdf
    • http://cefasfese.4pu.com/3730734736730

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