Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b9297227580a8b0…

MALICIOUS

PDF

15.7 KB Created: 2020-03-18 23:24:55 +00:00 Authoring application: mPDF 5.7
MD5: 0352de6492b0cd8f214357f4b8ecbd07 SHA-1: aec30ab4c941395f912325d2f9f944521deb7d43 SHA-256: 5b9297227580a8b0b9d728c48248f248eeae49a9e2850eccd02c1a8f010abad3
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 poisoning or link farming. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely intended to redirect users to malicious content or to manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://weisncio.myhome.cx/2628628625620621/Avatar-The-Last-Airbender-North-and-South-Part-2-North-and-South-2-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/2628628623624620/Avatar-The-Last-Airbender-North-and-South-Part-1-North-and-South-1-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/2624629625628621/Avatar-The-Last-Airbender-The-Promise-Avatar-The-Last-Airbender-Library-Edition-1-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/1620620621627/Avatar-The-Last-Airbender-The-Rift-Part-1-The-Rift-1-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/5621624626627/Avatar-The-Last-Airbender-The-Search-Part-3-The-Search-3-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/1620623628628/Avatar-The-Last-Airbender-The-Promise-Part-1-The-Promise-1-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/2628628627629629/Avatar-The-Last-Airbender-The-Promise-Part-1-The-Promise-1-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/2628628623624627/Avatar-The-Last-Airbender-Smoke-and-Shadow-Part-3-Smoke-and-Shadow-3-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/3621624622625621/North-and-South-North-and-South-1-by-John-Jakes.pdf
    • http://weisncio.myhome.cx/2628626624627623/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/2625629621627628/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/2620629629625627/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/3625625622622626/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/2624623629620623/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/5629621628623628/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/5620624625629627/North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/9622629626624624/Level-6-North-and-South-by-Elizabeth-Gaskell.pdf
    • http://weisncio.myhome.cx/1624629621622/American-Born-Chinese-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/1620628624624/The-Eternal-Smile-Three-Stories-by-Gene-Luen-Yang.pdf
    • http://weisncio.myhome.cx/1620625628622622627/Heaven-and-Hell-North-and-South-3-by-John-Jakes.pdf

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