Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf510edcf983fa95…

MALICIOUS

PDF

27.4 KB Created: 2019-05-01 17:06:11 +01:00 Authoring application: mPDF 5.7
MD5: 31df2a1dc55ecac205de529d4a8c47ee SHA-1: 247bf219cde474627b30790a83e0c49e5b2a2c85 SHA-256: cf510edcf983fa95001e3b895b09f9fa641472cd3c84520e074104fad6eea74f
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier as malicious and contains a large number of embedded URLs, indicative of a link farm. The primary attack pattern observed is the mass embedding of external PDF links, likely to manipulate search engine results or serve malicious content. No scripts were extracted from this sample, limiting further analysis of its direct payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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/2f210f213f211f210f213/Beyond-the-Glass-Slipper-Ten-Neglected-Fairy-Tales-To-Fall-In-Love-With-by-Kate-Wolford.pdf
    • http://kiteeearpdf.myhome.cx/1f215f211f217f211f213/Beyond-the-Glass-Slipper-Ten-Neglected-Fairy-Tales-To-Fall-In-Love-With-by-Kate-Wolford.pdf
    • http://kiteeearpdf.myhome.cx/4f217f218f217f217f217/The-Glass-Slipper-Women-and-Love-Stories-by-Susan-Ostrov-Weisser.pdf
    • http://kiteeearpdf.myhome.cx/9f211f216f218f214f212/Wildwood-Fairy-Tales-and-Fables-Re-Imagined-by-Kate-Kasten.pdf
    • http://kiteeearpdf.myhome.cx/2f215f218f213f216/My-Mother-She-Killed-Me-My-Father-He-Ate-Me-Forty-New-Fairy-Tales-by-Kate-Bernheimer.pdf
    • http://kiteeearpdf.myhome.cx/2f210f212f219f216f217/The-Glass-Slipper-by-Eleanor-Farjeon.pdf
    • http://kiteeearpdf.myhome.cx/4f218f215f215f213f210/The-Glass-Slipper-and-Other-Stories-by-Yasuoka-Shotaro.pdf
    • http://kiteeearpdf.myhome.cx/7f210f210f217f214/Cinderella-or-the-Little-Glass-Slipper-by-Marcia-Brown.pdf
    • http://kiteeearpdf.myhome.cx/1f215f216f215f211f214/Queen-Cinder-Shards-of-the-Glass-Slipper-1-by-Roy-A-Mauritsen.pdf
    • http://kiteeearpdf.myhome.cx/1f218f211f215f213f215/Glass-Slipper-Gold-Sandal-A-Worldwide-Cinderella-by-Paul-Fleischman.pdf
    • http://kiteeearpdf.myhome.cx/6f216f218f217f213f214/Cendrillon-and-the-Glass-Slipper-Illustrated-The-French-Cinderella-Fairytale-by-Charles-Perrault.pdf
    • http://kiteeearpdf.myhome.cx/3f216f213f213f213f216/Where-Fairy-Tales-Go-A-Love-Story-by-Annette-Ross.pdf
    • http://kiteeearpdf.myhome.cx/7f214f216f215f214f215/Entrapping-a-Lord-s-Love-Fairfield-Fairy-Tales-3-by-Tammy-Andresen.pdf
    • http://kiteeearpdf.myhome.cx/4f213f219f213f217f217/Teapot-Tales-A-Collection-of-Unique-Fairy-Tales-by-Rebecca-Fyfe.pdf
    • http://kiteeearpdf.myhome.cx/2f217f214f215f210f212/Teapot-Tales-A-Collection-of-Unique-Fairy-Tales-by-Rebecca-Fyfe.pdf
    • http://kiteeearpdf.myhome.cx/9f211f215f219f218/Her-Stories-African-American-Folktales-Fairy-Tales-and-True-Tales-by-Virginia-Hamilton.pdf
    • http://kiteeearpdf.myhome.cx/7f218f214f210f219f211/Love-Journal-Valentine-s-Day-Love-Journal-Diary-Memory-Notebook-Keepsake-Journal-Sketchbook-Blank-Book-Bullet-Journal-Notebook-Planner-by-Night-Fairy-Size-6x9-150-Lined-Pages-by-Night-Fairy.pdf
    • http://kiteeearpdf.myhome.cx/7f218f214f210f212f212/Love-Journal-Valentine-s-Day-Love-Journal-Diary-Memory-Notebook-Keepsake-Journal-Sketchbook-Blank-Book-Bullet-Journal-Notebook-Planner-by-Night-Fairy-Size-6x9-150-Lined-Pages-by-Night-Fairy.pdf
    • http://kiteeearpdf.myhome.cx/7f216f214f218f213f211/The-Fairy-Family-A-Series-of-Ballads-amp-Metrical-Tales-Illustrating-the-Fairy-Mythology-of-Europe-By-A-MacLaren-by-A-MacLaren-a-Series-of-Ballads-amp-Metrical-Tales-Illustrating-the-Fairy-Mythology-of-Europe-By-A-MacLaren-by-A-MacLaren-by-Archibald-MacLaren.pdf
    • http://kiteeearpdf.myhome.cx/7f218f214f210f212f216/Love-Journal-Valentine-s-Day-Love-Journal-Diary-Memory-Notebook-Keepsake-Journal-Sketchbook-Blank-Book-Bullet-Journal-Notebook-Planner-by-Night-Fairy-Size-6x9-150-Blank-Pages-by-Night-Fairy.pdf
    • http://kiteeearpdf.myhome.cx/1f215f216f215f211f214/Queen-Cinder-Shards-of-the-

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