Malicious PDF — malware analysis report

Static analysis result for SHA-256 f57597439370fc29…

MALICIOUS

PDF

24.0 KB Created: 2019-05-01 05:11:30 +01:00 Authoring application: mPDF 5.7
MD5: d3fbff789068a386d74f0883ab679f51 SHA-1: 6319a3b02f1f500e23fc3b1d7b34bb15792e064a SHA-256: f57597439370fc29412a541aaf37b28753b0cb13982795e1c1cd224d85d0fc58
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO poisoning or to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the PDF structure itself is indicative of a link farm designed to manipulate search engine results or distribute content.

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://cefasfese.4pu.com/5735738736736738/Business-Communication-Process-and-Product-by-Mary-Ellen-Guffey.pdf
    • http://cefasfese.4pu.com/5738733735734730/Process-Analytics-Concepts-and-Techniques-for-Querying-and-Analyzing-Process-Data-by-Seyed-Mehdi-Reza-Beheshti.pdf
    • http://cefasfese.4pu.com/1730737739732736737/Gerhart-Hauptmann-quot-Bahnw-rter-Thiel-quot-quot-Vor-Sonnenaufgang-quot-quot-Der-Apostel-quot-quot-Der-Ketzer-von-Soana-quot-by-Gerhart-Hauptmann.pdf
    • http://cefasfese.4pu.com/6732734732736/A-Lexicon-of-Lunacy-Metaphoric-Malady-Moral-Responsibility-amp-Psychiatry-by-Thomas-Szasz.pdf
    • http://cefasfese.4pu.com/9734737730736736/Gerhart-Hauptmann-by-Paul-Schlenther.pdf
    • http://cefasfese.4pu.com/1730732733734737736/Gerhart-Hauptmann-And-Utopia-by-Philip-A-Mellen.pdf
    • http://cefasfese.4pu.com/1730732733734738731/Gerhart-Hauptmann-Der-Schlesier-by-Felix-A-Voigt.pdf
    • http://cefasfese.4pu.com/9738738732731733/Erinnerungen-An-Paul-Celan-by-Gerhart-Baumann.pdf
    • http://cefasfese.4pu.com/6736734735736731/Antike-1942-Sinnstruktur-Und-Zeitbezuge-in-Gerhart-Hauptmanns-Atriden-Tetralogie-by-Peter-Delvaux.pdf
    • http://cefasfese.4pu.com/1730737739732736739/Bahnw-rter-Thiel-von-Gerhart-Hauptmann-Textanalyse-und-Interpretation-mit-ausf-hrlicher-Inhaltsangabe-und-Abituraufgaben-mit-L-sungen-K-nigs-Erl-uterungen-270-by-R-diger-Bernhardt.pdf
    • http://cefasfese.4pu.com/1731731730739733736/Phantom-Textgenese-Und-Vermarktung-Ein-Roman-Von-Gerhart-Hauptmann-Eine-Film-Von-F-W-Murnau-Mit-Der-Vollstandigen-Titelliste-Im-Anhang-by-Rebecca-Kandler.pdf
    • http://cefasfese.4pu.com/1730737737733734730/The-Women-of-Easter-Encounter-the-Savior-with-Mary-of-Bethany-Mary-of-Nazareth-and-Mary-Magdalene-by-Liz-Curtis-Higgs.pdf
    • http://cefasfese.4pu.com/1730732731735732735/Mary-Mary-Not-So-Ordinary-The-Adventures-of-Miss-Mary-Bennet-1-by-S-M-Klassen.pdf
    • http://cefasfese.4pu.com/1730732731735734736/Mary-Mary-Oh-So-Contrary-The-Adventures-of-Miss-Mary-Bennet-2-by-S-M-Klassen.pdf
    • http://cefasfese.4pu.com/5734739736736731/Mary-Poppins-Boxed-Set-Three-Enchanting-Classics-Mary-Poppins-Mary-Poppins-Comes-Back-and-Mary-Poppins-Opens-the-Door-by-P-L-Travers.pdf
    • http://cefasfese.4pu.com/8735731736737732/The-Process-of-Composition-by-Joy-M-Reid.pdf
    • http://cefasfese.4pu.com/7732730730735731/The-Paranoid-Process-by-W-W-Meissner.pdf
    • http://cefasfese.4pu.com/7735737730737735/The-Terrestrialization-Process-by-M-Vecoli.pdf
    • http://cefasfese.4pu.com/4734736731732/Without-Due-Process-J-P-Beaumont-10-by-J-A-Jance.pdf
    • http://cefasfese.4pu.com/7732730731730739/Psychotherapy-and-the-Paranoid-Process-by-W-W-Meissner.pdf
    • http://cefasfese.4pu.com/1730732733734737736/Gerhart-Hauptmann-And-Utopia-by-Philip-A-Mellen

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