Malicious PDF — malware analysis report

Static analysis result for SHA-256 52e6bd09cd6e8050…

MALICIOUS

PDF

17.1 KB Created: 2020-01-02 06:05:14 +00:00 Authoring application: mPDF 5.7
MD5: 0ce9abfac787a44a31999a1404ddf0b9 SHA-1: 8d449b6687276bf43e3d05963c54e2f4ecb3c8bc SHA-256: 52e6bd09cd6e8050b1cd55a38d2f61225aecea613adf5a5c1c9aa2c8d52b4985
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links, identified as a PDF SEO link farm. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent, possibly to manipulate search engine rankings or redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no further context.

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/9732737730732735/Diary-of-Anne-Frank-in-Dari-Persian-or-Farsi-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/5735734735730734/The-Diary-of-Anne-Frank-The-Revised-Critical-Edition-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/1739731733737739/Anne-Frank-The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/8731737733730737/Anne-Frank-The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/1730735730733738/Anne-Frank-s-Tales-from-the-Secret-Annex-A-Collection-of-Her-Short-Stories-Fables-and-Lesser-Known-Writings-Revised-Edition-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/5739734734733733/The-Diary-of-Anne-Frank-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/9738733732731/The-Frank-Diary-of-Anne-by-Dan-Dillard.pdf
    • http://cefasfese.4pu.com/9734732737739/The-Diary-of-a-Young-Girl-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/5734739738739737/The-Diary-of-Anne-Frank-by-Charles-Nicholas.pdf
    • http://cefasfese.4pu.com/2732738739730730/The-Diary-of-Anne-Frank-The-Play-by-Frances-Goodrich.pdf
    • http://cefasfese.4pu.com/6732734731732731/The-Diary-of-a-Young-Girl-for-Class-10-Term-I-amp-II-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/2732739734734737/Anne-Frank-The-Diary-of-a-Young-Girl-Literature-Guide-Grades-4-8-by-Scholastic-Inc-.pdf
    • http://cefasfese.4pu.com/4730739730732/Anne-Frank-Remembered-The-Story-of-the-Woman-Who-Helped-to-Hide-the-Frank-Family-by-Miep-Gies.pdf
    • http://cefasfese.4pu.com/2732739733733733/Inside-Anne-Frank-s-House-An-Illustrated-Journey-Through-Anne-s-World-by-Hans-Westra.pdf
    • http://cefasfese.4pu.com/5735732732739739/The-Works-of-Anne-Frank-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/6738730731734730/El-diario-de-Ana-Frank-Biling-e-by-Anne-Frank.pdf
    • http://cefasfese.4pu.com/2732739732733731/My-Name-Is-Anne-She-Said-Anne-Frank-by-Jacqueline-van-Maarsen.pdf
    • http://cefasfese.4pu.com/2732733731731734/Anne-Frank-by-Susanna-Davidson.pdf
    • http://cefasfese.4pu.com/1730735739739738/Anne-Frank-and-the-Children-of-the-Holocaust-by-Carol-Ann-Lee.pdf
    • http://cefasfese.4pu.com/2732739733732739/Anne-Frank-a-Portrait-in-Courage-by-Ernst-Schnabel.pdf

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