Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d480a7ca7357344…

MALICIOUS

PDF

16.6 KB Created: 2019-06-04 17:46:52 +01:00 Authoring application: mPDF 5.7
MD5: d418000381942b3d161512a9764f9342 SHA-1: e6d3b7fb438a048053b5aef96c145ebe2568c69d SHA-256: 0d480a7ca73573443cbcfd2e7f4d379dc3dd5192ed0a0216c2b18a62eaf235cf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be SEO manipulation or hosting a large number of external links, potentially to distribute other malicious content or for link farming purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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/1731734739739737731/Rescuing-Sadie-Delta-Force-Heroes-7-5-Masters-amp-Mercenaries-Crossover-Collection-by-Susan-Stoker.pdf
    • http://cefasfese.4pu.com/4734736736739736/Rescuing-Harley-Delta-Force-Heroes-3-by-Susan-Stoker.pdf
    • http://cefasfese.4pu.com/3731739737732737/Shelter-for-Adeline-Badge-of-Honor-Texas-Heroes-7-by-Susan-Stoker.pdf
    • http://cefasfese.4pu.com/3731738735739735/Shelter-for-Elizabeth-Badge-of-Honor-Texas-Heroes-5-by-Susan-Stoker.pdf
    • http://cefasfese.4pu.com/4734736736739738/Justice-for-Corrie-Badge-of-Honor-Texas-Heroes-3-by-Susan-Stoker.pdf
    • http://cefasfese.4pu.com/1732733736733737/A-Dom-is-Forever-Masters-and-Mercenaries-3-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/2736730735732730/You-Only-Love-Twice-Masters-and-Mercenaries-8-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/3731738736734736/Submission-is-Not-Enough-Masters-and-Mercenaries-12-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/2736730739730739/Cherished-Masters-and-Mercenaries-7-5-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/3731734733731736/No-Control-Delta-Force-2-by-Shannon-K-Butcher.pdf
    • http://cefasfese.4pu.com/4739730739732736/No-Control-Delta-Force-2-by-Shannon-K-Butcher.pdf
    • http://cefasfese.4pu.com/4735731733731738/Just-One-Taste-Topped-2-Masters-and-Mercenaries-9-5-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/1737733732737737/Dungeon-Royale-Masters-and-Mercenaries-6-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/3739733738739735/Dungeon-Royale-Masters-and-Mercenaries-6-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/2733732733733739/Dominance-Never-Dies-Masters-and-Mercenaries-11-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/8737738733736733/Tier-One-Wild-Delta-Force-2-by-Dalton-Fury.pdf
    • http://cefasfese.4pu.com/1736739738731737/On-Her-Master-s-Secret-Service-Masters-and-Mercenaries-4-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/9738733731738/The-Mission-the-Men-and-Me-Lessons-from-a-Former-Delta-Force-Commander-by-Pete-Blaber.pdf
    • http://cefasfese.4pu.com/1732732735735738/Protected-Masters-and-Mercenaries-16-5-1001-Dark-Nights-84-by-Lexi-Blake.pdf
    • http://cefasfese.4pu.com/1737731730735734/Dungeon-Games-Masters-and-Mercenaries-6-5-1001-Dark-Nights-5-by-Lexi-Blake.pdf

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