Malicious PDF — malware analysis report

Static analysis result for SHA-256 5530b487164496fb…

MALICIOUS

PDF

15.2 KB Created: 2019-05-02 05:43:48 +01:00 Authoring application: mPDF 5.7
MD5: 539d7edc259e2fc21fda2cd687cbb936 SHA-1: 8c8ace9493738a44ce42f354e72f9ff05e4e7635 SHA-256: 5530b487164496fb0b1c5b1e0b58f042ad1af4d9dab7d5351398526f024607e0
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of embedded links pointing to external PDF files, primarily hosted on the domain 'cefasfese.4pu.com'. This technique is often used for SEO poisoning or to distribute malicious content disguised as legitimate documents. No scripts were extracted, and the document body contained only obfuscated text and URLs. The primary attack pattern observed is the distribution of a link farm.

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://cefasfese.4pu.com/5733735737731732/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/3734733739739/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/1731735730733730730/Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/1731735736733730733/Religion-Within-the-Boundary-of-Pure-Reason-Tr-by-J-W-Semple-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/1731736735734738730/Accessing-Kant-A-Relaxed-Introduction-to-the-Critique-of-Pure-Reason-by-Jay-F-Rosenberg.pdf
    • http://cefasfese.4pu.com/8734739730734/Critique-of-Judgment-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730735731735/The-Critique-of-Aesthetic-Judgement-Critique-of-Judgement-1-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730736737738/The-Immanuel-Kant-Collection-8-Classic-Works-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730737730738/Collected-Works-of-Immanuel-Kant-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730735731730/Works-of-Immanuel-Kant-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730735731734/Immanuel-Kant-by-Otfried-H-ffe.pdf
    • http://cefasfese.4pu.com/4731731739738730/Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/1731730736735730/Prolegomena-to-Any-Future-Metaphysics-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/5735734736737730/Foundations-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/2739732736737737/The-Metaphysical-Elements-of-Ethics-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6732737737739736/Fundamental-Principles-of-the-Metaphysic-of-Morals-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730737730739/Feminist-Interpretations-of-Immanuel-Kant-by-Robin-May-Schott.pdf
    • http://cefasfese.4pu.com/6734730737731731/Metaphysical-Foundations-of-Natural-Science-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/6734730735739736/Anthropology-from-a-Pragmatic-Point-of-View-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/4733739734735732/The-Moral-Law-Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://cefasfese.4pu.com/4731731739738730/Groundwork-of-the-Metaphysics-of-