Malicious PDF — malware analysis report

Static analysis result for SHA-256 cef2ee38a25fbcda…

MALICIOUS

PDF

17.4 KB Created: 2019-05-02 01:15:24 +01:00 Authoring application: mPDF 5.7
MD5: 9e3e51deefc1df3075d196a9ffed6edc SHA-1: 173ef887ab83b32d8b48478b5a79bc328d490ce3 SHA-256: cef2ee38a25fbcda7e7940d2e720a32a5d5d658bbeacf149c6bc86065a208aa0
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, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While the specific intent of the links is unclear due to their benign reputation, the sheer volume and the heuristic firing suggest a malicious purpose, likely related to driving traffic or distributing further malware.

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://loaminoo.linkpc.net/6090092094093091/Andr-e-s-Story-the-Complete-Record-of-His-Polar-Flight-1897-by-S-A-Andr-e.pdf
    • http://loaminoo.linkpc.net/1096098098096099/Lithochronos-Ou-Le-Premier-Vol-de-La-Pierre-Autour-de-Quinze-Photographies-D-Andree-Christensen-by-Andr-e-Christensen.pdf
    • http://loaminoo.linkpc.net/5098090096096094/Selected-Poems-of-Andree-Chedid-by-Andr-e-Chedid.pdf
    • http://loaminoo.linkpc.net/3093096090099092/Petunia-the-Girl-who-was-NOT-a-Princess-by-M-R-Nelson.pdf
    • http://loaminoo.linkpc.net/6090095096096/The-Complete-Princess-Trilogy-Princess-Princess-Sultana-s-Daughters-and-Princess-Sultana-s-Circle-by-Jean-Sasson.pdf
    • http://loaminoo.linkpc.net/2095091090095091/Princess-of-Egypt-An-Egyptian-Girl-s-Diary-1490-BC-by-Vince-Cross.pdf
    • http://loaminoo.linkpc.net/4092092095097096/Pandas-on-the-Eastside-by-Gabrielle-Prendergast.pdf
    • http://loaminoo.linkpc.net/4099096096090094/The-Ambient-Century-by-Mark-Prendergast.pdf
    • http://loaminoo.linkpc.net/4094095091092097/Paris-and-the-Nineteenth-Century-by-Christopher-Prendergast.pdf
    • http://loaminoo.linkpc.net/6098098098096090/Caraboo-the-servant-girl-princess-the-real-story-of-the-grand-hoax-by-Jennifer-Raison.pdf
    • http://loaminoo.linkpc.net/1091090097094097091/The-Ambient-Century-From-Mahler-to-Trance-The-Evolution-of-Sound-in-the-Electronic-Age-by-Mark-Prendergast.pdf
    • http://loaminoo.linkpc.net/4096098099097093/The-Princess-in-Black-and-the-Perfect-Princess-Party-The-Princess-in-Black-2-by-Shannon-Hale.pdf
    • http://loaminoo.linkpc.net/6092099091099097/Going-for-a-Sea-Bath-by-Andr-e-Poulin.pdf
    • http://loaminoo.linkpc.net/6090092094090094/Dance-by-Andree-Grau.pdf
    • http://loaminoo.linkpc.net/6090092094098098/Balenciaga-by-Marie-Andr-e-Jouve.pdf
    • http://loaminoo.linkpc.net/6090092097093096/366-and-More-Wonders-of-the-World-by-Andree-Bertino.pdf
    • http://loaminoo.linkpc.net/6092099093091091/The-Magic-Clothesline-by-Andr-e-Poulin.pdf
    • http://loaminoo.linkpc.net/6090092094093096/When-the-Anger-Ogre-Visits-by-Andree-Salom.pdf
    • http://loaminoo.linkpc.net/5099095090093092/Lygaya-l-enfant-esclave-by-Andr-e-Paule-Mignot.pdf
    • http://loaminoo.linkpc.net/6090092097093094/Andr-e-Putman-Ambassadrice-du-style-by-Mich-le-Champenois.pdf

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