Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ce7a04c31d5879…

MALICIOUS

PDF

17.3 KB Created: 2019-05-03 05:07:48 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-13
MD5: 2c597d4cff75405c375939c9c07214c1 SHA-1: 4b902787f089176db06c1838396414630401fda6 SHA-256: 93ce7a04c31d58791ad23788cf10d8454cbcef2a15fcceae1710d785be2933c6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. These URLs point to external PDF files, suggesting a tactic to manipulate search engine results or to host further malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/2735739731731/Best-New-Horror-1-The-Mammoth-Book-of-Best-New-Horror-1-by-Stephen-Jones.pdf In PDF document text
    • http://cefasfese.4pu.com/4730738732733736/Best-New-Horror-23-The-Mammoth-Book-of-Best-New-Horror-23-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/9735737732739/Best-New-Horror-18-The-Mammoth-Book-of-Best-New-Horror-18-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/4730738734730730/Best-New-Horror-22-The-Mammoth-Book-of-Best-New-Horror-22-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/2738735737737737/Best-New-Horror-20-The-Mammoth-Book-of-Best-New-Horror-20-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/9735737732735/Best-New-Horror-19-The-Mammoth-Book-of-Best-New-Horror-19-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/3736737737737732/Best-New-Horror-16-The-Mammoth-Book-of-Best-New-Horror-16-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/9735737735734/Dark-Voices-The-Pan-Book-of-Horror-5-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/2736732735732/Dark-Terrors-v-1-The-Gollancz-Book-of-Horror-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/3737735733732/Horror-Another-100-Best-Books-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/4730738734733736/The-Mammoth-Book-of-Monsters-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/2739731738734733/The-Mammoth-Book-of-Werewolves-by-Stephen-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/9731739739735739/Horror-Stories-Classic-Tales-from-Hoffmann-to-Hodgson-by-Darryl-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/6738733731734737/Night-Shift-Excursions-into-Horror-by-the-Author-of-Carrie-and-The-Shining-by-Stephen-King.pdfIn PDF document text
    • http://cefasfese.4pu.com/5731731737731737/The-Body-Horror-Book-by-Claire-Fitzpatrick.pdfIn PDF document text
    • http://cefasfese.4pu.com/5730733732737733/The-Book-Splash-Horror-Story-by-Cassia-Brightmore.pdfIn PDF document text
    • http://cefasfese.4pu.com/2736733732737/Dark-Voices-2-The-Pan-Book-of-Horror-by-David-Sutton.pdfIn PDF document text
    • http://cefasfese.4pu.com/3734730739739737/The-Stephen-King-Universe-A-Guide-to-the-Worlds-of-the-King-of-Horror-by-Stanley-Wiater.pdfIn PDF document text
    • http://cefasfese.4pu.com/9735737731735/Back-from-the-Dead-The-Legacy-of-the-Pan-Book-of-Horror-Stories-by-Johnny-Mains.pdfIn PDF document text
    • http://cefasfese.4pu.com/9731737738734738/Das-gro-e-Horror-Lesebuch-Die-Nacht-der-lebenden-Toten-Book-of-the-Dead-1-by-John-Skipp.pdfIn PDF document text

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