Malicious PDF — malware analysis report

Static analysis result for SHA-256 041c5dc42b89834b…

MALICIOUS

PDF

23.1 KB Created: 2019-05-02 17:35:41 +01:00 Authoring application: mPDF 5.7
MD5: 8e46c715a4992a917a0e691962e7dbe2 SHA-1: 6bee8ca335301d489f9442f81fc1c0c23814e6dd SHA-256: 041c5dc42b89834b627443c1ab1ba65f16333a681eebda8962cf56203e58295c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files hosted on a dynamic DNS domain. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic or potentially distribute malicious content. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to manipulate search engine results or lure users to potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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://cmeinasaoo.duckdns.org/8b26b27b27b21b26/Rhymes-of-Love-by-Torquato-Tasso.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b25b28b21/Tasso-s-Dialogues-A-Selection-with-the-Discourse-on-the-Art-of-the-Dialogue-by-Torquato-Tasso.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b26b26b24/La-Vita-Di-Torquato-Tasso-by-Pierantonio-Serassi.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b25b28b23/Discourses-on-the-Heroic-Poem-by-Torquato-Tasso.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b26b26b20/The-Prudence-of-Torquato-Tasso-Vol-1-by-Nicholas-Webb.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b28b28b21/Torquato-Tasso-Melodramma-in-Tre-Atti-by-Gaetano-Donizetti.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b28b28b20/Einf-hrung-in-Goethe-s-Torquato-Tasso-by-Eduard-Wehrlin.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b27b21b27/Il-Viaggio-Del-Cavaliere-Gli-Inediti-Tassiani-Conchiglie-by-Torquato-Tasso.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b27b22b25/L-Aminta-Discorso-della-virt-feminile-e-donnesca-by-Torquato-Tasso.pdf
    • http://cmeinasaoo.duckdns.org/8b26b27b28b28b22/Plays-Egmont---Iphigenia-in-Tauris---Torquato-Tasso-by-Johann-Wolfgang-von-Goethe.pdf
    • http://cmeinasaoo.duckdns.org/7b24b20b29b20b22/Faust-I-dolori-del-giovane-Werther-Elegie-romane-Viaggio-in-Italia-Torquato-Tasso-Principii-di-filosofia-zoologica-e-anatomia-comparata-Sei-diverse-opere-con-illustrazioni-by-Johann-Wolfgang-von-Goethe.pdf
    • http://cmeinasaoo.duckdns.org/9b25b22b20b24b28/Dramatic-Works-of-Goethe-Comprising-Faust-Pt-1-Iphigenia-in-Tauris-Torquato-Tasso-Edmont-Tr-by-Anna-Swanwick-and-Goetz-Von-Berlichingen-Tr-by-Sir-Walter-Scott-and-Carefully-REV-by-Henry-G-Bohn-by-Walter-Scott.pdf
    • http://cmeinasaoo.duckdns.org/4b25b24b22b20/Light-on-Lucrezia-Lucrezia-Borgia-2-by-Jean-Plaidy.pdf
    • http://cmeinasaoo.duckdns.org/7b27b28b24b28b25/Reincarnation-of-Lucrezia-Borgia-by-Lisa-Love.pdf
    • http://cmeinasaoo.duckdns.org/5b28b27b21b20b22/War-amp-Love-Love-amp-War-New-and-Selected-Poems-New-and-Selected-Poems-by-Aharon-Shabtai.pdf
    • http://cmeinasaoo.duckdns.org/7b28b20b29b20/JOHN-DONNE-COMPLETE-WORKS-ULTIMATE-COLLECTION-All-Poems-Love-Poetry-Holy-Sonnets-Devotions-Meditations-English-Poems-Sermons-PLUS-BIOGRAPHIES-and-ANNOTATIONS-Annotated-by-John-Donne.pdf
    • http://cmeinasaoo.duckdns.org/1b20b21b24b29b25/A-Suffering-Soul-Dark-Love-Poems-Dark-Love-Poetry-Book-1-by-Darren-Heart.pdf
    • http://cmeinasaoo.duckdns.org/7b27b28b26b25b28/The-Second-Sister-by-Lucrezia-.pdf
    • http://cmeinasaoo.duckdns.org/7b27b28b26b24b29/Letters-From-Derbyshire-by-Lucrezia-.pdf
    • http://cmeinasaoo.duckdns.org/7b27b28b25b25b25/La-distanza-tra-me-e-te-by-Lucrezia-Scali.pdf