Malicious PDF — malware analysis report

Static analysis result for SHA-256 13fa7b4e78056bc4…

MALICIOUS

PDF

15.1 KB Created: 2019-05-02 17:36:49 +01:00 Authoring application: mPDF 5.7
MD5: fbe68f3d60771f1ebc8094fb6c93cb34 SHA-1: 3232fe27c5e24fc82c1e288d8cd2e1c943da3f2a SHA-256: 13fa7b4e78056bc4d284008dfa15eccc38632a3b15091b8d34fbd04da12c83de
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, all pointing to external PDF files hosted on the same domain. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the structure suggests an attempt to direct users to potentially malicious content via these links, likely as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/6090096098091095/Le-comte-de-Monte-Cristo-Tome-IV-The-Count-of-Monte-Cristo-part-4-of-4-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5090098093097/The-Count-of-Monte-Cristo-V1-The-Count-of-Monte-Cristo-part-1-of-2-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/6097092096096094/O-Conde-de-Monte-Cristo-V-3-The-Count-of-Monte-Cristo-part-3-of-3-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/7091096093099/Le-Comte-De-Monte-Cristo-3-The-Count-of-Monte-Cristo-part-3-of-3-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/6097092096095098/The-Count-of-Monte-Cristo-Volume-II-The-Count-of-Monte-Cristo-2-of-2-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/6097092097092098/The-Count-of-Monte-Cristo-Volume-V-The-Count-of-Monte-Cristo-5-of-5-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5095098095093098/The-Count-Of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/6090094091097095/The-Count-Of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5092095098090099/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/7090099096091095/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/6093093097097/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/7095091091091092/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/7091095094099096/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/9095099090091092/The-Count-Of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5093092090091095/The-Count-Of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5095094096098099/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/1098095096091095/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/3097098095097090/The-Count-of-Monte-Cristo-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/5093092095093098/The-Count-of-Monte-Cristo-Illustrated-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/1090091096098096095/The-Count-of-Monte-Cristo-An-Adventure-Novel-by-Alexandre-Dumas.pdf

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