Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f4b73e6033506d…

MALICIOUS

PDF

12.4 KB Created: 2020-03-13 20:19:24 +00:00 Authoring application: mPDF 5.7
MD5: 807ca2af56c28b3548e0f6bec9629095 SHA-1: 076a731ad57106115a2408a8fccd0379dfb73cdf SHA-256: 02f4b73e6033506d2ba2996e9621bff567e62b8a74943ebcddbaa7ac3f2c71cd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external book titles, suggesting a link farm for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of specific payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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://kitasdyu.myhome.cx/1877873873874879/The-Bastard-Prince-Kria-3-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2878876871879871/The-Matchmaker-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/3873873875878873/The-Stable-Boy-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/9874870871870874/Runaways-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/5878873876871877/Masque-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/3878872875879874/The-Menagerie-Lynx-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2878876873871878/Tournament-of-Losers-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/3878872875879878/Fairytales-Slashed-2-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2870871878878879/The-Broken-Forest-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/4873878873870879/Burning-Bright-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2879879871872877/Fairytales-Slashed-3-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/3872871879876878/The-Dragon-s-Tamer-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/6878873872873874/The-Shining-Knight-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/4875879878873873/Delivery-With-A-Smile-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/4872872878878874/The-Missing-Butterfly-Lovesongs-1-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/4872872876878874/Two-for-the-Show-Missing-Butterfly-4-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2877877877871879/Ruffskin-Dance-with-the-Devil-2-5-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2870871874872873/Sandstorm-Tales-of-Tavamara-2-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/4873878873871870/Treasure-The-Lost-Gods-1-by-Megan-Derr.pdf
    • http://kitasdyu.myhome.cx/2870871877875875/Sword-of-the-King-Dance-with-the-Devil-5-by-Megan-Derr.pdf

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