Malicious PDF — malware analysis report

Static analysis result for SHA-256 6879663b9b394a73…

MALICIOUS

PDF

16.3 KB Created: 2019-05-04 12:55:54 +01:00 Authoring application: mPDF 5.7
MD5: 10f5cc8091bd30001dcb6c0674809ebb SHA-1: f856eb8c589209e27a16a04e987cc0bcca54c0b0 SHA-256: 6879663b9b394a7349bc25848fa41049e43462b658d7a86366db3aceef2d962d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document 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 document 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 0.9898

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/3092099096094094/He-Kills-Me-He-Kills-Me-Not-Deadly-Games-1-by-Lena-Diaz.pdf
    • http://loaminoo.linkpc.net/3095096095095/The-Kills-The-Kills-1-4-by-Richard-House.pdf
    • http://loaminoo.linkpc.net/1090096095093091/What-Kills-Me-What-Kills-Me-1-by-Wynne-Channing.pdf
    • http://loaminoo.linkpc.net/4095093095097097/The-Bull-Rider-s-Brother-Bull-Rider-1-by-Lynn-Cahoon.pdf
    • http://loaminoo.linkpc.net/8092090094095096/The-Bull-Rider-s-Collection-Bull-Rider-1-3-by-Lynn-Cahoon.pdf
    • http://loaminoo.linkpc.net/1091097094092095096/Elephant-Trunk-Tusks-Ears-Kid-s-Facts-amp-Picture-Book-Kid-s-facts-and-picture-books-by-Stephanie-Zahl.pdf
    • http://loaminoo.linkpc.net/5093099095098/Out-of-the-Picture-and-Into-the-Picture-by-Victor-G-LaVanWay.pdf
    • http://loaminoo.linkpc.net/1090094091091099095/From-Picture-to-Picture-Book-by-Ali-Mitgutsch.pdf
    • http://loaminoo.linkpc.net/1091097096093096097/Langenscheidt-Wortschatz-Deutsch-als-Fremdsprache-Bild-fuer-Bild---German-Vocabulary-Picture-by-Picture-Die-wichtigsten-Woerter-sehen-und-merken-by-Langenscheidt.pdf
    • http://loaminoo.linkpc.net/4090098099/The-Hope-That-Kills-DI-Fenchurch-1-by-Ed-James.pdf
    • http://loaminoo.linkpc.net/5092090099095097/Fresh-Kills-by-Bill-Loehfelm.pdf
    • http://loaminoo.linkpc.net/3098099091094098/Leave-Before-He-Kills-You-by-Juliette-Duncan.pdf
    • http://loaminoo.linkpc.net/4090096093097091/Rotten-Legend-by-Sylvan-Kills.pdf
    • http://loaminoo.linkpc.net/3090094092099093/The-Corpse-Who-Kills-Fant-mas-3-by-Marcel-Allain.pdf
    • http://loaminoo.linkpc.net/4095090091091098/Excitotoxins-The-Taste-that-Kills-by-Russell-L-Blaylock.pdf
    • http://loaminoo.linkpc.net/1098097090094092/The-Kills-Alexandra-Cooper-6-by-Linda-Fairstein.pdf
    • http://loaminoo.linkpc.net/3094094093093090/Excitotoxins-The-Taste-That-Kills-by-Russell-L-Blaylock.pdf
    • http://loaminoo.linkpc.net/4090096099091098/If-it-Kills-Me-The-Starborn-Saga-2-by-Jason-D-Morrow.pdf
    • http://loaminoo.linkpc.net/2099094098099090/When-a-Secret-Kills-Deadly-Reunions-3-by-Lynette-Eason.pdf
    • http://loaminoo.linkpc.net/1091099092099092095/Famine-That-Kills-Darfur-Sudan-by-Alex-de-Waal.pdf

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