Malicious PDF — malware analysis report

Static analysis result for SHA-256 f77b3b3003574f5e…

MALICIOUS

PDF

27.7 KB Created: 2019-04-30 04:19:49 +01:00 Authoring application: mPDF 5.7
MD5: dbb0686e323b7da9c4be8e452c85301b SHA-1: 558b7ede16ad79ec22bde9ba3812b68860347821 SHA-256: f77b3b3003574f5e35a4360995c9b5b2b1756456323f2595cd4ad13a4bcf8d57
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific URLs themselves are marked as benign, the sheer volume and the suspicious domain suggest a malicious intent to redirect users. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://seasasac.lflinkup.com/1da0da8da1da5da3da9/New-York-New-York-Masterworks-of-a-Street-Peddler-George-Forss-by-David-Douglas-Duncan.pdf
    • http://seasasac.lflinkup.com/1da0da8da1da4da7da1/Face-of-New-York-by-Forss.pdf
    • http://seasasac.lflinkup.com/2da5da3da6da3/More-Than-a-Man-43-Light-Street-32-by-Rebecca-York.pdf
    • http://seasasac.lflinkup.com/2da7da8da9da4da1/Trial-by-Fire-43-Light-Street-5-by-Rebecca-York.pdf
    • http://seasasac.lflinkup.com/4da2da3da7da8da7/Goodbye-Picasso-by-David-Douglas-Duncan.pdf
    • http://seasasac.lflinkup.com/2da7da4da9da8da8/The-New-York-Times---Special-Edition---Saturday-July-4th-2009-by-The-New-York-Times.pdf
    • http://seasasac.lflinkup.com/7da7da9da9da5da8/Bernice-Abbott-New-York-Photographs-from-the-Museum-of-the-City-of-New-York-by-Berenice-Abbott.pdf
    • http://seasasac.lflinkup.com/8da8da5da0da0da5/The-Jews-of-New-York-in-the-Arts-Sciences-and-Professions-Address-Before-the-Judaean-Society-on-the-Occasion-of-Its-Celebration-of-the-250th-Anniversary-on-the-Settlement-of-the-Jews-in-New-York-Hotel-Savoy-April-29th-1905-by-Leon-Huhner.pdf
    • http://seasasac.lflinkup.com/1da9da9da5da8da8/The-Rose-of-York-Love-amp-War-The-Rose-of-York-Trilogy-1-by-Sandra-Worth.pdf
    • http://seasasac.lflinkup.com/2da7da5da0da6da5/Writers-on-Writing-Collected-Essays-from-The-New-York-Times-by-The-New-York-Times.pdf
    • http://seasasac.lflinkup.com/1da1da7da7da8da8/This-Son-Of-York-by-David-Batten-Hill.pdf
    • http://seasasac.lflinkup.com/1da1da9da6da8da6da6/The-Ultimate-New-York-Diet-by-David-Kirsch.pdf
    • http://seasasac.lflinkup.com/6da0da9da1da4da3/David-Wojnarowicz-Rimbaud-In-New-York-1978-79-by-Jim-Lewis.pdf
    • http://seasasac.lflinkup.com/5da5da5da8da2da1/Disinfection-of-Rags-Communication-of-the-Health-Officer-of-the-Port-of-New-York-to-the-New-York-City-Board-of-Health-in-Relation-to-the-Regulation-Requiring-the-Disinfection-of-Foreign-Rags-by-William-Mervale-Smith.pdf
    • http://seasasac.lflinkup.com/5da1da8da6da9da1/The-Brazen-Age-New-York-City-and-the-American-Empire-Politics-Art-and-Bohemia-by-David-Reid.pdf
    • http://seasasac.lflinkup.com/8da3da5da6da9da4/New-York-s-Finest-New-York-s-Finest-1-by-Kiki-Swinson.pdf
    • http://seasasac.lflinkup.com/1da7da0da1da9da5/Carmen-s-New-York-Escape-Carmen-s-New-York-2-by-Nikki-Sex.pdf
    • http://seasasac.lflinkup.com/3da2da7da5da8da8/Carmen-s-New-York-Love-Carmen-s-New-York-3-by-Nikki-Sex.pdf
    • http://seasasac.lflinkup.com/1da0da5da7da7da6da7/Ein-Privatdetektiv-auf-der-Abschussliste-N-Y-D---New-York-Detectives-Cassiopeiapress-Kriminalroman-N-Y-D---New-York-Detectives-Cassiopeiapress-Kriminalroman-by-Wolf-G-Rahn.pdf
    • http://seasasac.lflinkup.com/1da1da8da2da1da4da6/New-York-Convention-Manual-Prepared-in-Pursuance-of-Chapters-194-and-458-of-the-Laws-of-1867-New-York-Convention-Manual-Prepared-in-Pursuance-of-Chapters-194-and-458-of-the-Laws-of-1867-by-New-York-Constitutional-Convention.pdf
    • http://seasasac.lflinkup.com/8da8da5da0da0da5/The-Jews-of-New-York-in-the-Arts-Sciences-and-Professions-Address-Before-the-Judaean-Society-on-the-Occasion-of-Its-Celebration-of-the-250th-Anniversary-on-the-Se

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