Malicious PDF — malware analysis report

Static analysis result for SHA-256 6978b2cfc5c00808…

MALICIOUS

PDF

12.3 KB Created: 2019-04-30 20:31:38 +01:00 Authoring application: mPDF 5.7
MD5: b317b773613a4c15eb8ee235f775e2b5 SHA-1: aaab053176fb46359a52091a598624619f372915 SHA-256: 6978b2cfc5c00808512c7071b648fba3c55378db46bade03524146eae60209c2
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 documents, a technique often used for SEO poisoning or to distribute 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 0.8780

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://loaminoo.linkpc.net/7095092092093094/David-Mamet-s-Glengarry-Glen-Ross-by-Leslie-Kane.pdf
    • http://loaminoo.linkpc.net/7095092092092090/David-Mamet-s-Oleanna-by-David-Sauer.pdf
    • http://loaminoo.linkpc.net/7095092092093092/Passover-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091091092/Faustus-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/2090098091096095/Race-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091090099/Romance-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093093097/Henrietta-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093095091/School-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092093091/The-Woods-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/3095098091097091/Speed-the-Plow-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093093095/David-Mamet-by-Dennis-Carroll.pdf
    • http://loaminoo.linkpc.net/7095092090091098/Chicago-A-Novel-of-Prohibition-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092093094092/The-Frog-Prince-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092090092095/House-of-Games-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/1090095096090094/On-Directing-Film-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092092099/Understanding-David-Mamet-by-Brenda-Murphy.pdf
    • http://loaminoo.linkpc.net/7095092090092093/David-Mamet-in-Conversation-by-Leslie-Kane.pdf
    • http://loaminoo.linkpc.net/7095092093095092/No-One-Will-Be-Immune-and-Other-Plays-and-Pieces-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092091091098/Wilson-A-Consideration-of-the-Sources-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/7095092092092097/Jafsie-and-John-Henry-by-David-Mamet.pdf

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