Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d416a47cad006e2…

MALICIOUS

PDF

17.3 KB Created: 2019-11-07 10:28:34 +00:00 Authoring application: mPDF 5.7
MD5: 0b819eec8183b2dca9fd774e4bc39b93 SHA-1: 1cf5af34cd286d258f611291ea873131fe503271 SHA-256: 4d416a47cad006e289ad8d9f6c37407c9350d7037707ee32100a6a0985e48d9e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While many of these links resolve to benign content, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO poisoning or to redirect users to malicious sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/2739733734736738/Mars-Evacuees-Mars-Evacuees-1-by-Sophia-McDougall.pdf
    • http://cefasfese.4pu.com/3735733737738732/Mars-Evacuees-by-Sophia-McDougall.pdf
    • http://cefasfese.4pu.com/6737736738734738/Mars-Lista-Over-Asteroider-SOM-Korsar-Mars-Bana-Utforskningen-AV-Mars-Phoenix-Mars-Manar-Areografi-Phobos-Mars-Reconnaissance-Orbiter-by-K-lla-Wikipedia.pdf
    • http://cefasfese.4pu.com/1736733737733733/The-Collected-John-Carter-of-Mars-A-Princess-of-Mars-The-Gods-of-Mars-The-Warlord-of-Mars-Barsoom-1-3-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/5736733736736739/The-Princess-of-Mars-The-Gods-of-Mars-Barsoom-1-2-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/5733732730736733/Une-Princesse-de-Mars-Le-Conqu-rant-de-la-plan-te-Mars-by-Edgar-Rice-Burroughs.pdf
    • http://cefasfese.4pu.com/2734735734737/Green-Mars-Mars-Trilogy-2-by-Kim-Stanley-Robinson.pdf
    • http://cefasfese.4pu.com/2734735733736/Blue-Mars-Mars-Trilogy-3-by-Kim-Stanley-Robinson.pdf
    • http://cefasfese.4pu.com/1731733738736736739/Is-Mars-Habitable-A-Critical-Examination-of-Professor-Percival-Lowell-s-Book-Mars-and-Its-Canals-with-an-Alternative-Explanation-by-Alfred-Russel-Wallace.pdf
    • http://cefasfese.4pu.com/1737733730738737/Rome-Burning-Romanitas-2-by-Sophia-McDougall.pdf
    • http://cefasfese.4pu.com/1738732732739731/Mars-by-Ben-Bova.pdf
    • http://cefasfese.4pu.com/2731733738735730/Children-of-Mars-by-Paul-G-Day.pdf
    • http://cefasfese.4pu.com/3735734733736/MARS-by-Jasmine-Rose.pdf
    • http://cefasfese.4pu.com/3733737738731734/Mars-by-Marc-Hempel.pdf
    • http://cefasfese.4pu.com/7738737735732733/Mars-by-Hugh-H-Kieffer.pdf
    • http://cefasfese.4pu.com/2734734734737/How-We-Went-to-Mars-by-Arthur-C-Clarke.pdf
    • http://cefasfese.4pu.com/1732739734736734/Never-Been-to-Mars-by-Larry-Gent.pdf
    • http://cefasfese.4pu.com/2731739735735735/Mars-One-by-Jonathan-Maberry.pdf
    • http://cefasfese.4pu.com/1734734737738736/Love-from-Mars-by-J-P-Cawood.pdf
    • http://cefasfese.4pu.com/4737732732733731/The-Luminess-of-Mars-by-Brent-LeVasseur.pdf
    • http://cefasfese.4pu.com/2734735733736

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