Malicious PDF — malware analysis report

Static analysis result for SHA-256 88762f3e9f306c96…

MALICIOUS

PDF

13.4 KB Created: 2019-05-01 12:17:03 +01:00 Authoring application: mPDF 5.7
MD5: 88a110e350822b9361892739c5dc2d64 SHA-1: d0f7098e62524292487978f207f50f2c19139f07 SHA-256: 88762f3e9f306c96cb2bd5c390bd440386c9ea45f8350d39df18c07b9038ad1c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on loaminoo.linkpc.net, suggesting a link farm or content aggregation tactic. While the ML classifier flagged the PDF as malicious, the specific intent beyond link distribution is unclear due to the lack of executable scripts or exploitable content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

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/3096096097090/The-Queen-The-Selection-0-4-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3094098090095/The-Selection-Stories-The-Prince-amp-The-Guard-The-Selection-0-5-2-5-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/4096099090094094/The-Selection-Series-1-5-Book-Set-The-Selection-1-5-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/5098094090090/The-Selection-Series-1-4-Book-Set-The-Selection-1-4-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/4090090099091095/The-One-The-Selection-3-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/4094096094094/The-One-The-Selection-3-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/8098098097098/The-One-The-Selection-3-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/5090091091090091/The-Selection-The-Selection-1-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/4093096099094/The-Selection-The-Selection-1-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3098090090098092/The-Heir-The-Selection-4-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3097096091099090/The-Elite-The-Selection-2-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3094099098095/The-Guard-The-Selection-2-5-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/4090090099091094/The-Elite-The-Selection-2-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/1093093099098092/The-Elite-The-Selection-2-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3095093094092/The-Prince-The-Selection-0-5-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3091098090/The-Crown-The-Selection-5-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/3097099093094096/The-Heir-The-Selection-4-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/6095094091098/The-Elite-The-Selection-2-by-Kiera-Cass.pdf
    • http://loaminoo.linkpc.net/5093096090091095/The-Selection-by-Kiera-Cass-l-Summary-amp-Study-Guide-by-BookRags.pdf
    • http://loaminoo.linkpc.net/5093095099098099/WHERE-ARE-THEY-NOW-by-Kiera-Cass.pdf

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