Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca262d898a52a1bf…

MALICIOUS

PDF

20.2 KB Created: 2019-05-02 18:36:38 +01:00 Authoring application: mPDF 5.7
MD5: d150d8e81f604853b4fa3749d55fa71c SHA-1: 3432f88f9fbce3c0359c285ae734dfce7a0adac5 SHA-256: ca262d898a52a1bf31df81b912fa06d94f4c415fd5d27411f636e81f48333c83
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged the PDF as malicious. The primary function appears to be directing users to external sites, likely for SEO poisoning or to serve further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://kiteeearpdf.myhome.cx/6f214f214f210f212f213/Symphony-No-2-Antar-Op-9-1875-1903-Revision-Study-Score-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f218f219f215/The-Complete-Sacred-Choral-Works-Monuments-Of-Russian-Sacred-Music-By-Rimsky-Korsakov-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f214f213/Trombone-Concerto-For-Solo-Trombone-and-Concert-Band-Conductor-Score-amp-Parts-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f218f219f211/Sadko-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f210f217/The-March-for-Zar-Saltan-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f218f213f213/My-Musical-Life-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f217f215f216/Principles-of-Orchestration-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f213f214/Le-Coq-D-Or-the-Golden-Cock-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f212f215/The-Young-Prince-from-Scheherazade-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f213f213/The-Suites-from-the-Fairy-Tale-Operas-and-Dubinushka-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/5f217f213f211f211f217/Theme-from-Sh-h-razade---easy-version---Piano-by-Nikolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f211f214/Capriccio-Espagnol-Op-34-Miniature-Score-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f215f210/Sadko-Op-5-Third-Version-1892-Full-Score-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f213f212/The-Golden-Cockerel-Russian-Language-Edition-Vocal-Score-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f214f211/The-Narrated-Life-History-of-the-Russian-Kuchka-Alexander-Borodin-Modest-Mussorgsky-and-Nikolai-Rimsky-Korsakov-Part-IV-Modern-by-Marcia-Dangerfield.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f212f210/Mozart-and-Salieri-Opera-in-One-Act-Two-Scenes-Opus-48-Vocal-Score-with-Russian-and-English-Text-0-Kalmus-Edition-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f219f214f216/Piano-Duets-Vol-2-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f211f219/Flight-of-the-Bumble-Bee-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f214f210f211f216/Piano-Duets-Vol-1-by-Nicolai-Rimsky-Korsakov.pdf
    • http://kiteeearpdf.myhome.cx/6f214f213f217f216f210/Reminiscences-of-Rimsky-Korsakov-by-Vasily-Yastrebtsev.pdf
    • http://kiteeearpdf.myh

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