Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c7a07509645e45…

MALICIOUS

PDF

15.8 KB Created: 2019-04-30 04:26:35 +01:00 Authoring application: mPDF 5.7
MD5: aea587d163e0c2607cd460ebc1005fbc SHA-1: 7b9997b0c4ea0cb6003da14d9cc5d107e1a833b5 SHA-256: 16c7a07509645e459ed87c24f103adad70e053a47c424ccad5f56b07f97aa644
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which are likely intended to direct users to malicious content disguised as book downloads. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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/3097092094095097/The-Secrets-Beneath-Mysteries-of-Middlefield-2-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092094095096/Hide-and-Secret-Mysteries-of-Middlefield-3-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092092091092/The-Middlefield-Family-Collection-Treasuring-Emma-Faithful-to-Laura-Letters-to-Katie-A-Middlefield-Family-Novel-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/2091093093093092/A-Man-of-His-Word-Hearts-of-Middlefield-1-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092096091096/Treasuring-Emma-Middlefield-Family-1-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092096091095/An-Honest-Love-Hearts-of-Middlefield-2-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092094093098/A-Daring-Return-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/4094095094091090/Words-from-the-Heart-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092094093091/Santa-Fe-Sunrise-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3098098096099099/Words-from-the-Heart-Amish-Letters-3-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/3097092094094097/A-Clever-Disguise-Regency-Royal-Mystery-2-by-Kathleen-Fuller.pdf
    • http://loaminoo.linkpc.net/7095098098098092/Beneath-the-Secrets-Enigma-5-by-Shandi-Boyes.pdf
    • http://loaminoo.linkpc.net/3097099099094099/Secrets-Beneath-the-Sea-Mermaid-Kingdom-1---3-by-Janet-Gurtler.pdf
    • http://loaminoo.linkpc.net/3098092090093094/Hyacinth-and-the-Secrets-Beneath-by-Jacob-Sager-Weinstein.pdf
    • http://loaminoo.linkpc.net/4098097098092098/The-Summoning-God-The-Anasazi-Mysteries-2-by-Kathleen-O-39-Neal-Gear.pdf
    • http://loaminoo.linkpc.net/2095091092094098/Beneath-the-Secrets-Part-4-Tall-Dark-amp-Deadly-3-4-by-Lisa-Renee-Jones.pdf
    • http://loaminoo.linkpc.net/1094092091095097/Secrets-in-the-Hills-A-Josefina-Mystery-by-Kathleen-Ernst.pdf
    • http://loaminoo.linkpc.net/5091099094099/Beneath-the-Lake-Lake-Lanier-Mysteries-1-by-Casi-McLean.pdf
    • http://loaminoo.linkpc.net/2099092098091099/The-Secrets-of-Vesuvius-Roman-Mysteries-2-by-Caroline-Lawrence.pdf
    • http://loaminoo.linkpc.net/2091093092095097/Stolen-Secrets-The-Red-Rock-Mysteries-2-by-Jerry-B-Jenkins.pdf

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