Malicious PDF — malware analysis report

Static analysis result for SHA-256 249b8ffc309c4bd8…

MALICIOUS

PDF

19.8 KB Created: 2019-04-30 04:24:08 +01:00 Authoring application: mPDF 5.7
MD5: 2913e15b349c7a6b4a3e3b855dfa3435 SHA-1: d75f767aec37fbc9226efdf1d0732fe8c818fecd SHA-256: 249b8ffc309c4bd846876843d14e4c880d550bfcbc445226b9e92d4e33637847
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified as a link farm. While many of these URLs were classified as benign, the sheer volume and the heuristic firing of 'PDF_SEO_LINK_FARM' suggest a malicious intent, likely for SEO manipulation or to distribute further malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/1a00a03a02a01a06a07/Wilhelm-Hauffs-Sammtliche-Werke-in-Zwei-Banden-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a00a08a01/Wilhelm-Hauff---Gesammelte-M-rchen-by-Wil-helm-Hauff.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a00a08a02/HAUFF-S-FAIRY-TALES-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/4a01a07a06a09a07/The-Dwarf-Nose-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a00a02a09/Little-Mook-And-Dwarf-Longnose-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a00a07a04/The-Cold-Heart-Nose-the-Dwarf-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a01a06a03/The-Marvellous-History-of-the-Shadowless-Man-and-The-Cold-Heart-by-Wilhelm-Hauff.pdf
    • http://muicuiu.dumb1.com/8a09a03a04a08a06/Wilhelm-Busch---Gesammelte-Werke-by-Wilhelm-Busch.pdf
    • http://muicuiu.dumb1.com/9a07a05a05a03a05/Gesammelte-Werke-in-sechs-B-nden-by-Wilhelm-Busch.pdf
    • http://muicuiu.dumb1.com/7a03a01a08a00a01/Understanding-the-I-Ching-The-Wilhelm-Lectures-on-the-Book-of-Changes-by-Hellmut-Wilhelm.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a00a07a09/Hauff-s-Fairy-Tales-by-Cicely-McDonnell.pdf
    • http://muicuiu.dumb1.com/9a05a08a01a02a04/Musikhistorisches-Museum-Von-Wilhelm-Heyer-in-Coln-Kleiner-Katalog-Der-Sammlung-Alter-Musikinstumente-Verfast-Von-Georg-Kinsky-Volume-1---Scholar-s-Choice-Edition-by-Wilhelm-Heyer.pdf
    • http://muicuiu.dumb1.com/9a02a00a07a04a06/Sidonia-the-Sorceress-Volume-I-of-II-by-Wilhelm-Meinhold-Fiction-Literary-Fairy-Tales-Folk-Tales-Legends-amp-Mythology-by-Wilhelm-Meinhold.pdf
    • http://muicuiu.dumb1.com/9a05a03a07a05a00/Heinrich-Wilhelm-Brandes-Vorlesungen-ber-Die-Naturlehre-Zur-Belehrung-Derer-Denen-Es-an-Mathematischen-Vorkenntnissen-Fehlt-Teil-3-by-Heinrich-Wilhelm-Brandes.pdf
    • http://muicuiu.dumb1.com/1a01a01a00a08a08a04/Friedrich-Wilhelm-Murnau---Die-Privaten-Photographien1924-1930-Berlin-Hollywood-Tahiti-by-Friedrich-Wilhelm-Murnau.pdf
    • http://muicuiu.dumb1.com/1a00a07a01a02a06/The-Revealers-by-Doug-Wilhelm.pdf
    • http://muicuiu.dumb1.com/4a03a07a07a00/Listen-Little-Man-by-Wilhelm-Reich.pdf
    • http://muicuiu.dumb1.com/9a02a06a06a05a08/The-Hurrians-by-Gernot-Wilhelm.pdf
    • http://muicuiu.dumb1.com/9a07a07a05a04a08/Ostseeschiffahrt-in-Der-Kunst-by-Wilhelm-Treue.pdf
    • http://muicuiu.dumb1.com/2a09a02a06a06a02/Monadology-by-Gottfried-Wilhelm-Leibniz.pdf
    • http://muicuiu.dumb1.com/1a00a03a02a

Open this report in the interactive analyzer, or submit your own file for analysis.