Malicious PDF — malware analysis report

Static analysis result for SHA-256 7881794e8c6ce3e8…

MALICIOUS

PDF

17.4 KB Created: 2019-05-02 05:08:30 +01:00 Authoring application: mPDF 5.7
MD5: 3897952af2b662b292dab86c40acd5e5 SHA-1: d1b97f1458ca5313742998d3f356ecf04758e602 SHA-256: 7881794e8c6ce3e8fc163054de60b1656286ea1d67b0a5cfd0e7e5726392436d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/4734730735738734/Slavery-Part-1-amp-2-Captured-amp-Operated-on-Slavery-1-2-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/2734734737738730/Anita-s-Tale-The-Sperm-Donor-Slavery-0-5-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/9739735732733736/French-Anti-Slavery-The-Movement-for-the-Abolition-of-Slavery-in-France-1802-1848-by-Lawrence-C-Jennings.pdf
    • http://cefasfese.4pu.com/2734735735733737/The-Male-Bridesmaid-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/2734734737737730/A-Sissy-Story-Feminized-For-Her-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/2734734737737734/The-Ultimate-Forfeit-Femdom-The-Game-3-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/4734730735736739/The-Bisexual-Writer-Cuckolded-into-Chastity-by-a-Lesbian-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/2734735735732735/Gender-Swap-Anita-s-Transgender-Pill-1-amp-2-A-Sissy-Duology-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/4738738730730/Up-from-Slavery-by-Booker-T-Washington.pdf
    • http://cefasfese.4pu.com/2734735735732739/Latex-Slave-Sissy-Maid-A-Transgender-Tale-of-Mind-Control-and-Forced-Feminization-by-Sabrina-Jen-Mountford.pdf
    • http://cefasfese.4pu.com/4732733737734736/Silken-Slavery-by-Christina-Shelly.pdf
    • http://cefasfese.4pu.com/3736735733731735/The-Slavery-of-Death-by-Richard-Beck.pdf
    • http://cefasfese.4pu.com/6738736738733732/Slavery-and-Freedom-by-Nikolai-A-Berdyaev.pdf
    • http://cefasfese.4pu.com/6734733739732738/Up-from-Slavery-An-Autobiography-by-Booker-T-Washington.pdf
    • http://cefasfese.4pu.com/4733734735738737/Sold-into-Slavery-by-Claire-Thompson.pdf
    • http://cefasfese.4pu.com/7730738730738736/Slavery-In-Ancient-Greece-by-Yvon-Garlan.pdf
    • http://cefasfese.4pu.com/1736732739736735/Slavery-and-the-Culture-of-Taste-by-Simon-Gikandi.pdf
    • http://cefasfese.4pu.com/9739731730739732/The-Humanisation-of-Slavery-in-the-Old-Testament-by-Thomas-Schirrmacher.pdf
    • http://cefasfese.4pu.com/2738735738736730/Original-Sins-A-Novel-of-Slavery-Freedom-by-Peg-Kingman.pdf
    • http://cefasfese.4pu.com/7735734738739739/Stephanie-s-Slavery-Brackish-Bay-2-by-Cerise-Noble.pdf

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