Malicious PDF — malware analysis report

Static analysis result for SHA-256 3243224f5922eda8…

MALICIOUS

PDF

17.4 KB Created: 2019-05-02 01:26:45 +01:00 Authoring application: mPDF 5.7
MD5: e983158b6187ed93a53d7dfd908b9a60 SHA-1: 80a4ebf7dda8d691e3691a57276683c5a45f7c61 SHA-256: 3243224f5922eda8c6388ecdd8dfdcf115e49b64a04db7ae163f796707aa6e0a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm attack pattern. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was unreadable, limiting further analysis of the specific lure. The primary IOCs are the numerous embedded URLs.

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://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
    • http://muicuiu.dumb1.com/8a07a06a05a03a04/Kleiner-Pelz-will-gr-er-werden-by-Irina-Korschu

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