Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b28c44462293b69…

MALICIOUS

PDF

17.4 KB Created: 2019-04-30 03:59:58 +01:00 Authoring application: mPDF 5.7
MD5: a329fb5ecda151f721111020aa90a627 SHA-1: 9d014b4f44d86aa07a11f4857393b3fc04b38d85 SHA-256: 6b28c44462293b6958de88ed56fceb6161626e8327b947c6e00f1d7e0e669edd
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While the document body is unreadable, the presence of numerous links suggests an attempt to direct users to malicious or spam content. The ML classifier also flagged this PDF as malicious, supporting the link farm finding.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/9a02a05a06a05a07/Der-Fluch-des-schnauzb-rtigen-Banditen-by-Irina-Teodorescu.pdf
    • http://muicuiu.dumb1.com/8a06a06a09a06a03/Dreihundert-Interessante-Fragen-F-r-Die-Bed-rfnisse-Der-Gegenw-rtigen-Zeit-Deren-Aufl-sung-in-Der-Bibel-Nachgewiesen-Wird-by-Anonymous.pdf
    • http://muicuiu.dumb1.com/3a05a06a00a06a02/The-Folly-by-Irina-Shapiro.pdf
    • http://muicuiu.dumb1.com/4a03a05a07a07a03/Full-Circle-by-Irina-Serban.pdf
    • http://muicuiu.dumb1.com/1a01a07a09a06a02/Specimen-Stories-by-Irina-Kovalyova.pdf
    • http://muicuiu.dumb1.com/9a05a08a01a03a08/Das-gro-e-Buch-vom-Wuschelb-r-by-Irina-Korschunow.pdf
    • http://muicuiu.dumb1.com/8a07a06a05a03a04/Kleiner-Pelz-will-gr-er-werden-by-Irina-Korschunow.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a07a06a06/Drei-Schritte-nach-Russland-Erz-hlung-by-Irina-Liebmann.pdf
    • http://muicuiu.dumb1.com/1a01a08a04a08a06a07/Fluch-der-Seide-by-Victoria-Holt.pdf
    • http://muicuiu.dumb1.com/9a00a01a06a08a07/Fluch-und-Vorurteil-by-Kerrelyn-Sparks.pdf
    • http://muicuiu.dumb1.com/9a05a07a09a08a03/Malenka-Der-Eulenruf-Zwei-Romane-in-einem-Band-by-Irina-Korschunow.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a07a06a03/Letzten-Sommer-In-Deutschland-Eine-Romantische-Reise-by-Irina-Liebmann.pdf
    • http://muicuiu.dumb1.com/1a00a07a08a04a04a06/Ressourcenreichtum-als-Fluch-oder-Segen-by-Sch-rer.pdf
    • http://muicuiu.dumb1.com/1a01a02a04a05a03a04/Elfenzeit-10-Fluch-der-Blutgr-fin-by-Jana-Paradigi.pdf
    • http://muicuiu.dumb1.com/9a05a01a05a02a05/Cora-und-der-Fluch-der-W-lfin-by-Frank-Becker.pdf
    • http://muicuiu.dumb1.com/1a00a01a02a02a03a04/Der-Fluch-der-Kelten---2-Der-Unsterbliche-by-Patricia-Jankowski.pdf
    • http://muicuiu.dumb1.com/6a08a06a09a06/Der-Fluch-der-G-tter-Elegie-an-die-Nacht-2-by-Jacqueline-Carey.pdf
    • http://muicuiu.dumb1.com/9a02a05a09a04a07/Fluch-der-Karibik-Pirates-of-the-Caribbean-1-by-Wolfgang-Hohlbein.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a07a07a00/Phantom-Images-The-Figure-of-the-Ghost-in-the-Work-of-Christa-Wolf-and-Irina-Liebmann-by-Catherine-Smale.pdf
    • http://muicuiu.dumb1.com/1a00a05a07a09a05a06/Fluch-des-Alchimisten-Grusel-Klassiker-Die-UWA-Serie-5-by-Roger-Damon.pdf

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