Malicious PDF — malware analysis report

Static analysis result for SHA-256 6765ba642354e853…

MALICIOUS

PDF

23.4 KB Created: 2019-05-01 19:36:22 +01:00 Authoring application: mPDF 5.7
MD5: b0d2a08933aa112a59bbd803a6212db4 SHA-1: 403dd9d8a5aec3e0e44dafb1fb4792766811c7e2 SHA-256: 6765ba642354e8530333b419007fc6ee56ac4358cdb09390a087735c77e03ee0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, disguised with academic-sounding titles. This technique is often used to drive traffic to malicious sites or to obscure the true nature of the payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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://loaminoo.linkpc.net/9090094092099099/Hegel-A-Reinterpretation-by-Walter-Kaufmann.pdf
    • http://loaminoo.linkpc.net/6097094090090095/Goethe-Kant-and-Hegel-Discovering-the-Mind-1-by-Walter-Kaufmann.pdf
    • http://loaminoo.linkpc.net/9092097092091093/Text-Specific-DVDs-for-Kaufmann-Schwitters-Intermediate-Algebra-by-Jerome-E-Kaufmann.pdf
    • http://loaminoo.linkpc.net/5096093093090/Introduction-To-Existentialism-by-Marjorie-Grene.pdf
    • http://loaminoo.linkpc.net/1091097091096094091/Existencialismo-para-principiantes-Existentialism-for-Beginners-by-R-Appignanesi.pdf
    • http://loaminoo.linkpc.net/8098095098093091/The-Merchant-of-Venice-Junior-Certificate-English-A-Romantic-Comedy-by-William-Shakespeare-Folens-Shakespeare-Series-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/9093095097090090/Schriften-zur-Literatur-Band-1-Homer-Shakespeare-Wieland-und-andere-Zeitgenossen-Band-2-Arno-Schmidts-poetische-Sendung-Band-3-Literarische-Endspiele-Kraus-bis-Walter-Kempowski-by-Jan-Philipp-Reemtsma.pdf
    • http://loaminoo.linkpc.net/1091097090096093090/Die-Sinne-by-David-Kaufmann.pdf
    • http://loaminoo.linkpc.net/1090094093099093095/Her-Ten-Year-Itch-by-Emma-Kaufmann.pdf
    • http://loaminoo.linkpc.net/9098090094092/Chasing-the-Dragon-by-Nicholas-Kaufmann.pdf
    • http://loaminoo.linkpc.net/1090094093098094095/Fungus-Link-by-Doug-A-Kaufmann.pdf
    • http://loaminoo.linkpc.net/7093093090096090/Shakespeare-s-the-Merchant-of-Venice-For-Use-in-Public-and-High-Schools-With-Annotations-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/8096096095099098/Pericles-Prince-of-Tyre-Shortened-Shakespeare-Edited-for-Length-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/5093098097090095/A-New-Variorum-Edition-of-Shakespeare-Midsummer-Night-s-Dream-1895-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/8096096093093092/Love-s-Labours-Lost-Shortened-Shakespeare-Edited-for-Length-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/6099098093097097/A-New-Variorum-Edition-of-Shakespeare-The-Merchant-of-Venice-1888-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/1091098099097094095/A-New-Variorum-Edition-of-Shakespeare-The-Tragedie-of-Cymbeline-1913-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/2092092090096098/Comedies-The-Norton-Shakespeare-Based-on-the-Oxford-Edition-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/6099098093097098/A-New-Variorum-Edition-of-Shakespeare-Twelfe-Night-Or-What-You-Will-1901-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/8096096093093091/The-Two-Gentlemen-of-Verona-Shortened-Shakespeare-Edited-For-Length-by-William-Shakespeare.pdf