Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d997a79eb5c7ffa…

MALICIOUS

PDF

14.3 KB Created: 2019-11-09 23:23:31 +00:00 Authoring application: mPDF 5.7
MD5: 08c6ddc4e8d65220ef13771e8b5ee12c SHA-1: 851202b61999ccba1c5a8eeda6d700a34a90144a SHA-256: 5d997a79eb5c7ffa9c2cbe6b589c201cd722ddc80548e08b32d5fce7c96e0335
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the document body is unreadable, the presence of numerous links suggests an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/9736731730732737/Der-Tarzan-Effekt-by-Hanna-Molden.pdf
    • http://cefasfese.4pu.com/9733732730731731/Greif-Und-Rose-Geschichte-Eines-Furstenpaares-by-Hanna-Molden.pdf
    • http://cefasfese.4pu.com/1732737730731730/Tarzan-at-the-Earth-s-Core-Tarzan-13-Pellucidar-4-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3735735730739733/Tarzan-and-the-Golden-Lion-Tarzan-9-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3735735730738735/Tarzan-and-the-Lost-Empire-Tarzan-12-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/4733738731739733/Tarzan-s-Quest-Tarzan-19-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/2738738739733735/Tarzan-the-Invincible-Tarzan-14-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/5730731731732732/Tarzan-of-the-Apes-Tarzan-1-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/4733738731739731/Tarzan-the-Magnificent-Tarzan-21-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3734732730730/Tarzan-of-the-Apes-Tarzan-1-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3735735730739731/Tarzan-and-the-Leopard-Men-Tarzan-18-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3735735730738738/Tarzan-Triumphant-Tarzan-15-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/2738737730739730/Tarzan-Triumphant-Tarzan-15-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/4733738731739736/Tarzan-and-the-Castaways-Tarzan-25-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/3735734738735735/The-Son-of-Tarzan-Tarzan-4-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/4732731739733731/Hanna-s-Diary-1938-1941-Czechoslovakia-to-Canada-by-Hanna-Spencer.pdf
    • http://cefasfese.4pu.com/9736730739733737/Der-EMP-Effekt-by-Peter-Schmidt.pdf
    • http://cefasfese.4pu.com/9736731730734732/Der-AHA--Effekt-by-Bettina-Fischer.pdf
    • http://cefasfese.4pu.com/5739730732735733/The-Kafka-Effekt-by-D-Harlan-Wilson.pdf
    • http://cefasfese.4pu.com/9736730739733736/Der-Roncalli-Effekt-Roman-by-Fritz-Rudolf-Fries.pdf

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