Malicious PDF — malware analysis report

Static analysis result for SHA-256 daef084a050aaeef…

MALICIOUS

PDF

20.2 KB Created: 2020-02-06 01:17:30 +00:00 Authoring application: mPDF 5.7
MD5: 30d4d2f772022132b31512f8112f271d SHA-1: e89a74e39c525a8e739e5cf0199d9f31343b20dc SHA-256: daef084a050aaeef0f10c6c20d46cfbf748a20c1dfd897e767170645f5c7a248
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 primary heuristic indicates a mass of external PDF links, with the dominant host being calistazz.myhome.cx. This suggests the document is designed to lure users into clicking these links, potentially leading to malicious content or phishing attempts. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://calistazz.myhome.cx/7869867867869866/A-Troll-Under-the-Bridge-by-D-S-Arnauld.pdf
    • http://calistazz.myhome.cx/5863869867868864/Antoine-Arnauld-and-Pierre-Nicole-Logic-or-the-Art-of-Thinking-by-Antoine-Arnauld.pdf
    • http://calistazz.myhome.cx/8863863865866869/Troll-Cries-Troll-2-by-Ashley-C-Harris.pdf
    • http://calistazz.myhome.cx/2860867860860861/Troll-Troll-3-by-Emma-Clark.pdf
    • http://calistazz.myhome.cx/2864864861869864/Night-Noises-And-Other-Mole-And-Troll-Stories-Mole-and-Troll-3-by-Tony-Johnston.pdf
    • http://calistazz.myhome.cx/2862862860866862/The-Great-Bridge-The-Epic-Story-of-the-Building-of-the-Brooklyn-Bridge-by-David-McCullough.pdf
    • http://calistazz.myhome.cx/4860863863867865/Old-London-Bridge-The-Story-of-the-Longest-Inhabited-Bridge-in-Europe-by-Patricia-Pierce.pdf
    • http://calistazz.myhome.cx/9868860861864861/The-Great-Bridge-The-Epic-Story-of-the-Building-of-the-Brooklyn-Bridge-by-David-McCullough.pdf
    • http://calistazz.myhome.cx/1864861865868869/The-Brooklyn-Bridge-The-Story-of-the-World-s-Most-Famous-Bridge-and-the-Remarkable-Family-That-Built-It-by-Elizabeth-Mann.pdf
    • http://calistazz.myhome.cx/3861861861863869/Grand-Slam-More-Recipes-from-the-Best-of-Bridge-by-Best-of-Bridge.pdf
    • http://calistazz.myhome.cx/7869867868860867/Ang-lique-Arnauld-by-Fabian-Gastellier.pdf
    • http://calistazz.myhome.cx/7869867868860864/Arnauld-And-The-Cartesian-Philosophy-Of-Ideas-by-Steven-Nadler.pdf
    • http://calistazz.myhome.cx/7869867868860865/Leibniz-and-Arnauld-A-Commentary-on-Their-Correspondence-by-Robert-C-Sleigh-Jr-.pdf
    • http://calistazz.myhome.cx/3861861861863864/Aces-More-Recipes-from-the-Best-of-Bridge-by-Best-of-Bridge.pdf
    • http://calistazz.myhome.cx/3861861861861860/The-Rest-Of-The-Best-And-More-From-The-Best-Of-Bridge-Series-Vol-2-by-Best-of-Bridge.pdf
    • http://calistazz.myhome.cx/3861861861860863/Winners-More-Recipes-from-the-Best-of-Bridge-by-Best-of-Bridge.pdf
    • http://calistazz.myhome.cx/7869867868860863/Discourse-on-Metaphysics-Correspondence-with-Arnauld-And-Monadology-by-Gottfried-Wilhelm-Leibniz.pdf
    • http://calistazz.myhome.cx/7869867868861862/Leibniz-Discourse-on-Metaphysics-Correspondence-with-Arnauld-and-Monadology-by-George-R-Montgomery.pdf
    • http://calistazz.myhome.cx/2862865862863/The-Rainbow-Bridge-Bridge-to-Inner-Peace-and-to-World-Peace-by-Brent-N-Hunter.pdf
    • http://calistazz.myhome.cx/3868869861864861/At-Home-in-Wishing-Bridge-Wishing-Bridge-2-by-Ruth-Logan-Herne.pdf
    • http://calistazz.myhome.cx/9868860861864861/The-Gre

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