Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2953242594adfc…

MALICIOUS

PDF

19.1 KB Created: 2020-03-20 16:11:28 +00:00 Authoring application: mPDF 5.7
MD5: 716718445608e26136171925209a1167 SHA-1: eeb16b2209ea153014039137202b3a4123141d23 SHA-256: af2953242594adfcef5bf406fb6f6848f7ec768aaf98a42c8f9e47bef9ad4523
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier with high confidence and contains a large number of embedded URLs, indicating a link farm. The primary heuristic firing, PDF_SEO_LINK_FARM, confirms the presence of numerous external PDF links, suggesting a malicious intent to redirect users to potentially harmful content or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://eascasas.myhome.cx/1aa1aa0aa9aa0aa0aa4/Parerga-and-Paralipomena-Short-Philosophical-Essays-Vol-2-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa0aa8aa7aa8aa5/Parerga-and-Paralipomena-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa0aa8aa8aa4aa8/Philosophical-Writings-Arthur-Schopenhauer-by-Wolfgang-Schirmacher.pdf
    • http://eascasas.myhome.cx/8aa5aa4aa9aa3/The-World-as-Will-and-Representation-Vol-2-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa0aa8aa7aa8aa6/The-Basis-of-Morality-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa5aa9aa7aa6aa8/Metaphysik-der-Geschlechts-Liebe-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa0aa9aa0aa0aa7/The-World-as-Will-and-Idea-Volume-3-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa1aa7aa4aa6aa0aa8/Einakter-and-kleine-Dramen-des-Expressionismus-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/1aa9aa4aa3aa8aa7/The-Importance-of-What-We-Care-about-Philosophical-Essays-by-Harry-G-Frankfurt.pdf
    • http://eascasas.myhome.cx/3aa9aa6aa7aa3aa1/Wittgenstein-The-Philosophical-Investigations-A-Collection-of-Critical-Essays-by-George-Pitcher.pdf
    • http://eascasas.myhome.cx/1aa1aa4aa3aa9aa8aa5/Das-Erotische-Unbehagen-in-Der-Russischen-Literatur-Um-1900-Subversive-Entsagung-Von-Arthur-Schopenhauer-Uber-Lev-Tolstoj-Und-Vladimir-Solov-ev-Zu-Fedor-Sologub-by-Cristina-Beretta.pdf
    • http://eascasas.myhome.cx/6aa3aa2aa5aa2aa7/Aphorismes-sur-la-sagesse-dans-la-vie-L-dition-int-grale-L-art-de-rendre-la-vie-aussi-agr-able-et-aussi-heureuse-que-possible-by-Arthur-Schopenhauer.pdf
    • http://eascasas.myhome.cx/2aa2aa2aa2aa2aa2/The-Theater-Essays-Of-Arthur-Miller-by-Arthur-Miller.pdf
    • http://eascasas.myhome.cx/1aa0aa0aa9aa8aa2aa0/Science-Understanding-and-Justice-The-Philosophical-Essays-of-Martin-Eger-by-Martin-Eger.pdf
    • http://eascasas.myhome.cx/4aa4aa5aa3aa7aa6/Incomplete-Short-Stories-and-Essays-by-Jamie-Berrout.pdf
    • http://eascasas.myhome.cx/3aa9aa2aa8aa9aa7/Origin-of-Inspiration-Seven-Short-Essays-for-Creative-People-by-Sam-Adoquei.pdf
    • http://eascasas.myhome.cx/1aa1aa2aa4aa8aa6aa9/Through-the-Window-Seventeen-Essays-and-a-Short-Story-by-Julian-Barnes.pdf
    • http://eascasas.myhome.cx/7aa5aa3aa6aa0aa5/The-Best-American-Series-20-Short-Stories-and-Essays-by-Geraldine-Brooks.pdf
    • http://eascasas.myhome.cx/4aa1aa3aa7aa2aa4/Tall-Tales-With-Short-Cocks-by-Arthur-Graham.pdf
    • http://eascasas.myhome.cx/6aa0aa1aa6aa3aa0/His-Last-Bow-Sherlock-Holmes-Short-Story-Collection-8-stories-illustrated-by-Arthur-Conan-Doyle.pdf
    • http://eascasas.myhome.cx/1aa1aa0aa9aa0aa0aa7/The-World-as-Will-and-Idea-Volume-3-by-Art