Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c768a8af23bac51…

MALICIOUS

PDF

18.1 KB Created: 2020-03-14 00:17:47 +00:00 Authoring application: mPDF 5.7
MD5: ef813abc9bce1c883d913c0b70b9691a SHA-1: a75827ba7f8ea203471dedd90f9eb45cdaf7eafb SHA-256: 7c768a8af23bac518788468590a05172582100079ac1e43b0c696b8352e9132c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://rtuninnsi.myhome.cx/36a36a46a66a76a3/The-Chase-Volume-1-The-Chase-1-by-Jessica-Wood.pdf
    • http://rtuninnsi.myhome.cx/36a36a76a06a16a7/The-Chase-Volume-3-The-Chase-3-by-Jessica-Wood.pdf
    • http://rtuninnsi.myhome.cx/36a96a06a56a16a0/The-Chase-Volume-4-The-Chase-4-by-Jessica-Wood.pdf
    • http://rtuninnsi.myhome.cx/26a66a56a36a76a4/Cutting-Right-to-the-Chase-Vol-2-Chase-Williams-detective-short-stories-2-by-Stefania-Mattana.pdf
    • http://rtuninnsi.myhome.cx/36a06a86a86a96a5/The-Official-Chase-N-Yur-Face-Cookbook-Tasty-Recipes-Fun-Facts-To-Start-Your-Food-Adventure-by-Chase-Bailey.pdf
    • http://rtuninnsi.myhome.cx/16a46a46a46a76a2/Giving-Chase-Chase-Brothers-1-by-Lauren-Dane.pdf
    • http://rtuninnsi.myhome.cx/16a26a36a66a36a5/Giving-Chase-Chase-Brothers-1-by-Lauren-Dane.pdf
    • http://rtuninnsi.myhome.cx/26a76a86a56a06a8/Chase-of-a-Lifetime-Chase-Series-1-by-Ryan-Field.pdf
    • http://rtuninnsi.myhome.cx/26a26a66a16a46a7/Chase-The-Chase-Saga-by-Kiara-Delaney.pdf
    • http://rtuninnsi.myhome.cx/36a56a56a86a06a2/Magnus-Chase-and-the-Hammer-of-Thor-Magnus-Chase-and-the-Gods-of-Asgard-2-by-Rick-Riordan.pdf
    • http://rtuninnsi.myhome.cx/86a36a46a36a9/Magnus-Chase-and-the-Hammer-of-Thor-Magnus-Chase-and-the-Gods-of-Asgard-2-by-Rick-Riordan.pdf
    • http://rtuninnsi.myhome.cx/26a46a46a26a46a4/Chase-Tinker-and-the-House-of-Secrets-Chase-Tinker-2-by-Malia-Ann-Haberman.pdf
    • http://rtuninnsi.myhome.cx/46a56a96a06a06a5/Chase-Tinker-and-the-House-of-Magic-Chase-Tinker-1-by-Malia-Ann-Haberman.pdf
    • http://rtuninnsi.myhome.cx/86a96a46a56a56a6/Mad-Love-Chase-Volume-5-by-Kazusa-Takashima.pdf
    • http://rtuninnsi.myhome.cx/86a96a46a56a56a4/Mad-Love-Chase-Volume-3-by-Kazusa-Takashima.pdf
    • http://rtuninnsi.myhome.cx/46a16a46a16a06a5/Following-Chase-Chase-2-by-J-J-Scotts.pdf
    • http://rtuninnsi.myhome.cx/36a16a16a16a16a9/Sarah-Leah-Chase-s-Year-Around-Cookbook-by-Sarah-Leah-Chase.pdf
    • http://rtuninnsi.myhome.cx/16a96a66a66a56a5/Magnus-Chase-and-the-Gods-of-Asgard-Magnus-Chase-and-the-Gods-of-Asgard-1-3-by-Rick-Riordan.pdf
    • http://rtuninnsi.myhome.cx/16a96a96a16a16a3/Be-The-Air-For-You-by-T-A-Chase.pdf
    • http://rtuninnsi.myhome.cx/46a46a86a16a96a8/Two-for-One-by-T-A-Chase.pdf

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