Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f1b795bb8f88dea…

MALICIOUS

PDF

14.6 KB Created: 2019-05-02 05:27:50 +01:00 Authoring application: mPDF 5.7
MD5: 01a7f0443e2adfc8ee9e77caa69d252f SHA-1: b84fb5b9099e30d676a0dd79d44f812926eca6c7 SHA-256: 8f1b795bb8f88dea71b3d8761712d166238093949c784b1c9ef71caee7f6ee55
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain 'cefasfese.4pu.com'. This behavior is indicative of a link farm or a lure to a large collection of potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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://cefasfese.4pu.com/7739731732730735/Supergirl-30-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731732730737/Supergirl-33-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730736733/Supergirl-and-the-Legion-of-Super-Heroes-Vol-6-The-Quest-for-Cosmic-Boy-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731731736734/Convergence-Aquaman-2-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730739732/R-E-B-E-L-S-Vol-4-Sons-of-Brainiac-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730739737/Convergence-Aquaman-1-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731732730736/Green-Lantern-New-Guardians-0-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731732731732/Gotham-City-Sirens-14-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731732731736/Negation-Volume-4-Shock-amp-Awe-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730735734/Exiles-Volume-10-Age-of-Apocalypse-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731731736730/Mystic-Volume-4-Out-All-Night-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731731736735/Green-Lantern-New-Guardians-4-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739730739735733/Blue-Beetle-Vol-1-Metamorphosis-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739730739736730/Birds-of-Prey-Vol-10-Club-Kids-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730736736/Exiles-Ultimate-Collection-Book-3-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730735739/Exiles-Volume-9-Bump-in-the-Night-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730735738/Exiles-Volume-8-Earn-Your-Wings-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731732730738/Convergence-Green-Lantern-Parallax-2-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739730739735731/Green-Lantern-New-Guardians-Volume-2-Beyond-Hope-by-Tony-Bedard.pdf
    • http://cefasfese.4pu.com/7739731730736732/Exiles-Volume-13-World-Tour-Book-2-by-Tony-Bedard.pdf

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