Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc6b127d07d22116…

MALICIOUS

PDF

19.4 KB Created: 2019-05-22 20:01:42 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-04
MD5: 7ed406b1e3c146c3a0dd23f737da7b42 SHA-1: d376635afd914c28214a61bec66c314cb745cee8 SHA-256: fc6b127d07d2211640b7f6cbe8250700876b4e928d3cd57ecc6901c611eb0e6f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, identified as a link farm. This suggests the document's primary purpose is to drive traffic to these external resources, likely for SEO manipulation or to host malicious content indirectly. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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/4734732734732733/The-Left-Hand-of-God-by-Paul-Hoffman.pdf In PDF document text
    • http://cefasfese.4pu.com/3739730736738736/The-Last-Four-Things-The-Left-Hand-of-God-2-by-Paul-Hoffman.pdfIn PDF document text
    • http://cefasfese.4pu.com/4734738737738/The-Last-Four-Things-The-Left-Hand-of-God-2-by-Paul-Hoffman.pdfIn PDF document text
    • http://cefasfese.4pu.com/4738735731735734/The-Left-Hand-of-God-by-Hugh-Holton.pdfIn PDF document text
    • http://cefasfese.4pu.com/3730737733735733/The-Left-Hand-of-Darkness-by-Ursula-K-Le-Guin.pdfIn PDF document text
    • http://cefasfese.4pu.com/9739730732736733/The-Left-Hand-of-Destiny-Book-One-by-J-G-Hertzler.pdfIn PDF document text
    • http://cefasfese.4pu.com/2737732737734736/The-Left-Hand-of-Darkness-by-Ursula-K-Le-Guin.pdfIn PDF document text
    • http://cefasfese.4pu.com/3738731739736737/The-Left-Hand-of-the-Electron-by-Isaac-Asimov.pdfIn PDF document text
    • http://cefasfese.4pu.com/7737739731735/Aghora-At-the-Left-Hand-of-God-by-Robert-E-Svoboda.pdfIn PDF document text
    • http://cefasfese.4pu.com/4738736738732737/The-Left-Hand-Of-Darkness-by-Ursula-K-Le-Guin.pdfIn PDF document text
    • http://cefasfese.4pu.com/4730735737732738/Demons-of-the-Flesh-The-Complete-Guide-to-Left-Hand-Path-Sex-Magic-by-Nikolas-Schreck.pdfIn PDF document text
    • http://cefasfese.4pu.com/1736733738733731/Rocannon-s-World-Planet-of-Exile-City-of-Illusions-The-Left-Hand-of-Darkness-by-Ursula-K-Le-Guin.pdfIn PDF document text
    • http://cefasfese.4pu.com/4736730734737738/Commies-A-Journey-Through-the-Old-Left-the-New-Left-and-the-Leftover-Left-by-Ronald-Radosh.pdfIn PDF document text
    • http://cefasfese.4pu.com/4739738733736734/Danzig-Hidden-Lyrics-of-The-Left-Hand-by-Glenn-Danzig.pdfIn PDF document text
    • http://cefasfese.4pu.com/2739732734731739/Archimedes-Revenge-The-Joys-and-Perils-of-Mathematics-by-Paul-Hoffman.pdfIn PDF document text
    • http://cefasfese.4pu.com/2730731738730732/A-New-Andalucia-and-a-Way-to-the-Orient-The-American-Southeast-During-the-Sixteenth-Century-by-Paul-E-Hoffman.pdfIn PDF document text
    • http://cefasfese.4pu.com/4738739739737732/A-Dead-Hand-A-Crime-in-Calcutta-by-Paul-Theroux.pdfIn PDF document text
    • http://cefasfese.4pu.com/8737730733731731/The-Strange-Death-of-Marxism-The-European-Left-in-the-New-Millennium-by-Paul-Edward-Gottfried.pdfIn PDF document text
    • http://cefasfese.4pu.com/5733730732737731/The-Angel-of-the-Left-Bank-The-Secrets-of-Delacroix-s-Parisian-Masterpiece-by-Jean-Paul-Kauffmann.pdfIn PDF document text
    • http://cefasfese.4pu.com/1734732733731730/Hand-Made-Hand-Played-The-Art-Craft-of-Contemporary-Guitars-by-Robert-Shaw.pdfIn PDF document text

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