Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cb3e4eecf650c9b…

MALICIOUS

PDF

21.5 KB Created: 2019-05-03 05:39:43 +01:00 Authoring application: mPDF 5.7
MD5: 26bf6039ca66e9db28c3a07fabfd635a SHA-1: 072e8c9a27c7b94f5c2722d2fafe27b9993c0c6a SHA-256: 0cb3e4eecf650c9b86299621c6ed1ab16655b74fedfd68fed53d7ffb42c9d936
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external domains. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on these domains. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/8094098092093096/The-Sherlock-Holmes-Illustrated-Omnibus-The-Adventures-of-Sherlock-Holmes-the-Memoirs-of-Sherlock-Holmes-the-Hound-of-the-Baskervilles-the-Return-of-Sherlock-Holmes-A-Facsimile-of-the-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/1090093098095092/The-Original-Illustrated-Sherlock-Holmes-Sherlock-Holmes-3-6-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/5090095097099092/The-Adventures-of-Sherlock-Holmes-original-illustrated-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/1090097093090094090/Sherlock-Holmes-The-Original-Illustrated-strand-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/4090098090098/The-Original-Illustrated-Sherlock-Holmes-37-Short-Stories-Plus-a-Complete-Novel-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/8098099093093095/Die-Abenteuer-des-Sherlock-Holmes-Sherlock-Holmes-Ausgabe-Band-1-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/2091095090099093/The-Case-Book-of-Sherlock-Holmes-Sherlock-Holmes-9-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/3094092091093/The-Memoirs-of-Sherlock-Holmes-Sherlock-Holmes-4-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/3092090090091091/The-Adventures-of-Sherlock-Holmes-Sherlock-Holmes-3-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/3095098093096/The-Return-of-Sherlock-Holmes-Sherlock-Holmes-6-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/6091099091097092/The-Adventures-of-Sherlock-Holmes-Sherlock-Holmes-3-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/4095093095097094/Sherlock-Holmes-Sherlock-Holmes-1-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/8091097090091096/The-Memoirs-of-Sherlock-Holmes-Original-Edition-1893-Annotated-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/8090092099098095/The-Adventures-Of-Sherlock-Holmes-JBS-Classics---Illustrated-100-Formatted-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/2095097092094093/Sherlock-The-Memoirs-of-Sherlock-Holmes-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/8090093090091098/The-Complete-Sherlock-Holmes-Collection-Color-Illustrated-Formatted-for-E-Readers-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/9096097099094092/Arthur-Conan-Doyle-Sherlock-Holmes---Die-Romane-Eine-Studie-in-Scharlachrot---Das-Zeichen-der-Vier---Der-Hund-der-Baskervilles---Das-Tal-des-Grauens-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/1091092099097095095/Sherlock-Holmes-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/7093090092090097/His-Last-Bow---The-War-Service-of-Sherlock-Holmes-by-Arthur-Conan-Doyle.pdf
    • http://loaminoo.linkpc.net/1091097094093090098/The-Complete-Sherlock-Holmes-by-Arthur-Conan-Doyle.pdf

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