Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f46a419c5cc912e…

MALICIOUS

PDF

12.9 KB Created: 2019-04-30 06:26:42 +01:00 Authoring application: mPDF 5.7
MD5: cfab5b9b67e22627d5c6618538691557 SHA-1: 60ee0c98f1ba73bfb7e04c312cf309006afc046e SHA-256: 5f46a419c5cc912e0cff20d9ebd388331d4929e487f52ea268250c508ea3e988
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs that point to external PDF files, indicative of a link farm or SEO poisoning tactic. The ML classifier also flagged this PDF as malicious. While the document body contains garbled text, the presence of numerous links suggests an attempt to drive traffic or potentially distribute further malicious content through these external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://muicuiu.dumb1.com/6a07a02a07a06a05/Sophie-Calle-Voir-la-Mer-by-Sophie-Calle.pdf
    • http://muicuiu.dumb1.com/7a04a09a01a06/Exquisite-Pain-by-Sophie-Calle.pdf
    • http://muicuiu.dumb1.com/8a03a08a04a00a01/La-ley-de-la-calle-by-S-E-Hinton.pdf
    • http://muicuiu.dumb1.com/6a05a07a04a03a04/Calle-Florista-by-Connie-Voisine.pdf
    • http://muicuiu.dumb1.com/9a00a07a01a01a02/Sophie-s-War-The-Journal-Of-Anna-Sophie-Franziska-Guenther-by-Janice-Shefelman.pdf
    • http://muicuiu.dumb1.com/4a07a09a00a01a09/Sophie-and-the-Wax-Doll-Bilingual-Sophie-s-Misfortunes-1-by-Comtesse-de-S-gur.pdf
    • http://muicuiu.dumb1.com/1a01a08a02a09a06a04/Sophie-the-Chatterbox-Sophie-Miller-3-by-Lara-Bergen.pdf
    • http://muicuiu.dumb1.com/2a07a05a06a09a09/Sophie-the-Awesome-Sophie-1-by-Lara-Bergen.pdf
    • http://muicuiu.dumb1.com/6a01a09a02a01a09/Sophie-s-World-Sophie-1-by-Nancy-N-Rue.pdf
    • http://muicuiu.dumb1.com/2a07a07a03a09a06/Sophie-s-Daughters-Trilogy-Sophie-s-Daughters-1-3-by-Mary-Connealy.pdf
    • http://muicuiu.dumb1.com/1a00a06a06a00a09/Sophie-s-Fate-Sophie-s-Fate-1-by-C-S-Minsky.pdf
    • http://muicuiu.dumb1.com/8a05a06a05a05a03/I-Owe-You-One-by-Sophie-Kinsella.pdf
    • http://muicuiu.dumb1.com/3a00a04a02a03a09/Surprise-Me-by-Sophie-Kinsella.pdf
    • http://muicuiu.dumb1.com/2a00a05a09a07a03/Playing-the-Field-by-Sophie-Oak.pdf
    • http://muicuiu.dumb1.com/3a03a07a08a05/Remember-Me-by-Sophie-Kinsella.pdf
    • http://muicuiu.dumb1.com/2a06a03a05a09a02/The-Hoax-by-Sophie-Masson.pdf
    • http://muicuiu.dumb1.com/5a04a04a07a08a07/A-Fada-do-Lar-by-Sophie-Kinsella.pdf
    • http://muicuiu.dumb1.com/1a05a04a01a08a08/Can-You-Keep-a-Secret-by-Sophie-Kinsella.pdf
    • http://muicuiu.dumb1.com/8a01a05a06/Out-of-the-Blue-by-Sophie-Cameron.pdf
    • http://muicuiu.dumb1.com/9a09a09a00a00a07/The-Dead-Lie-Down-by-Sophie-Hannah.pdf