Malicious PDF — malware analysis report

Static analysis result for SHA-256 64fa9599fcc227a7…

MALICIOUS

PDF

18.3 KB Created: 2019-04-30 08:22:02 +01:00 Authoring application: mPDF 5.7
MD5: 4f95de043fdb2c3afdcc297d8f8ec257 SHA-1: ff068cd127a5d9c318c0431d587e6db1fe2c6f61 SHA-256: 64fa9599fcc227a7756189828ebc71ac4a3f2999769d92a16cdf56c1513775cf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, masquerading as book downloads, which is indicative of a link farm or SEO spam campaign. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the structure and embedded URLs suggest an attempt to redirect users to malicious content, potentially leveraging PDF vulnerabilities or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://xiixmcuin.linkpc.net/8209206209200207/The-Jungle-Book-Fremdsprachentexte-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/4200201205203209/Rudyard-Kipling-The-Jungle-Book-The-Second-Jungle-Book-Just-So-Stories-Puck-of-Pook-s-Hill-Stalky-amp-Co-Kim-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/4200207204201/Rudyard-Kipling-s-The-Jungle-Book-The-Mowgli-Stories-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/1201206207207205202/The-Jungle-Book---With-Illustrations-by-John-Lockwood-Kipling-amp-Others-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/3208204201205200/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/1200201204208209208/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/2208205203209201/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/9208204202204201/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/7207206205208206/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/7205208208204208/The-Jungle-Book-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/7207203209209200/The-Jungle-Book---Le-Livre-De-La-Jungle-A-Bilingual-Reader---Une-Livre-Bilingue-Classical-Language-Skills-Development-Series-8-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/9202202200200208/The-Jungle-Book-1000-Copy-Limited-Edition-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/8200203200209208/The-Jungle-Book-Carefully-formatted-by-Timeless-Classic-Books-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/8202203201202207/The-jungle-book-Illustrated-More-Than-37-Pictures-Included-Free-Audio-Links-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/1200200207202203208/The-Jungle-Book-Das-Dschungelbuch-Bilingual-parallel-text---Zweisprachige-Ausgabe-English-German-Englisch-Deutsch-Dual-Language-Easy-Reader-47-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/5204209204207201/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/1201202204203204202/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/1201204201207208203/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/3202206205203/The-Jungle-Books-by-Rudyard-Kipling.pdf
    • http://xiixmcuin.linkpc.net/6200201202209208/Le-livre-de-la-jungle-suivie-de-Le-second-livre-de-la-jungle-dition-int-grale-by-Rudyard-Kipling.pdf

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