Malicious PDF — malware analysis report

Static analysis result for SHA-256 1874db297f945e0a…

MALICIOUS

PDF

14.8 KB Created: 2019-06-04 23:28:13 +01:00 Authoring application: mPDF 5.7
MD5: a931e57ab3175ab58fd555bbe9568629 SHA-1: 9ef42277f22f4c0e949fad37d049e14b5b6a62f9 SHA-256: 1874db297f945e0acf8de131aaa456e2bd72431e4832f03c2f03a008b2d1c71e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, pointing to external PDF files. While the document body is heavily corrupted, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. No scripts were extracted, but the link farm heuristic indicates a malicious intent.

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/3733732731734734/Rio-Tales-of-the-Shareem-2-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/1737732734730738/Justin-Tales-of-the-Shareem-6-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/3739737735731733/Kieran-Tales-of-the-Shareem-7-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/3737739738737730/Rees-Tales-of-the-Shareem-1-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/3736737737731734/Double-Trouble-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/2730737733739738/Firewalker-Stormwalker-2-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/4733734731735730/Double-Hexed-Stormwalker-2-5-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/1731736736739/Shadow-Walker-Stormwalker-3-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/1738731736732737/The-Black-Dragon-Dragon-2-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/8732737738735733/Scheherazade-s-tales-Scheherazades-tales-Book-1-by-Junia-James.pdf
    • http://cefasfese.4pu.com/3730732738738733/Stormwalker-Stormwalker-1-by-Allyson-James.pdf
    • http://cefasfese.4pu.com/3734730730735733/Star-Wars-Tales-Omnibus-Tales-from-the-Mos-Eisley-Cantina-Tales-of-the-Bounty-Hunters-and-Tales-from-Jabba-s-Palace-by-Kevin-J-Anderson.pdf
    • http://cefasfese.4pu.com/1735733731736730/Tales-from-the-Id-by-James-S-Prine.pdf
    • http://cefasfese.4pu.com/4732738733736733/Bunny-Tales-by-Izabella-St-James.pdf
    • http://cefasfese.4pu.com/9735739735730/Never-Again-by-Allyson-Bird.pdf
    • http://cefasfese.4pu.com/6730736736737736/The-Shopkeeper-Steve-Dancy-Tales-1-by-James-D-Best.pdf
    • http://cefasfese.4pu.com/3735734735732734/The-Leatherstocking-Tales-by-James-Fenimore-Cooper.pdf
    • http://cefasfese.4pu.com/6730739737733731/Source-One-by-Allyson-Simonian.pdf
    • http://cefasfese.4pu.com/4730737738738733/Aphrodisiac-Saylor-Oz-1-by-Allyson-Roy.pdf
    • http://cefasfese.4pu.com/9737731737733736/Taken-by-Anubis-by-Becca-Allyson.pdf

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