Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5745556bee19a5…

MALICIOUS

PDF

16.8 KB Created: 2019-11-07 12:30:46 +00:00 Authoring application: mPDF 5.7
MD5: 1040909b09c0e7ee9b6313763f436b06 SHA-1: fd34a127c128ed678253aea18d40795a2000d66a SHA-256: ce5745556bee19a5a8875120d6200b931f968a3b0dca84f5352b97fe5dde9908
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a more detailed analysis of the immediate user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/3739735737736738/Her-Healing-Touch-Morgan-s-Mercenaries-26-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2735739738734735/Morgan-s-Son-Morgan-s-Mercenaries-Love-and-Danger-2-Morgan-s-Mercenaries-5-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2739733738734735/In-The-Beginning-Morgan-s-Mercenaries-1-3-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2731732731730736/Commando-Morgan-s-Mercenaries-3-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2735735731733/Beginning-with-You-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2738730736731739/The-Five-Days-of-Christmas-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/3732733738736738/The-Seeker-Time-Raiders-1-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/9734738739/Home-to-Wind-River-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/4737739732733738/Red-Tail-Travis-Trilogy-1-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/1738737733739736/Never-Surrender-Shadow-Warriors-6-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/4738731734736737/Midnight-Clear-Includes-Morgan-s-Mercenaries-18-by-Debbie-Macomber.pdf
    • http://cefasfese.4pu.com/2738730736731736/Dawn-Of-Valor-Love-and-Glory-4-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2734736737733739/Wolf-Haven-Jackson-Hole-9-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2730739731733732/Running-Fire-Shadow-Warriors-8-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/2734730736730737/Touch-of-the-Irish-Touch-of-the-Irish-Collection-by-Savannah-Morgan.pdf
    • http://cefasfese.4pu.com/4737731730730733/Love-and-Glory-Silhouette-By-Request-3-s-A-Question-of-Honor-No-Surrender-Return-of-a-Hero-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/4738731734739730/The-Healing-Touch-by-Janet-Dailey.pdf
    • http://cefasfese.4pu.com/4738730734736731/Coming-Home-for-Christmas-Christmas-Angel-Unexpected-Gift-Navy-Joy-by-Lindsay-McKenna.pdf
    • http://cefasfese.4pu.com/4737736737736739/More-Than-a-Touch-Snowberry-Creek-2-by-Alexis-Morgan.pdf
    • http://cefasfese.4pu.com/1737730735737738/The-Healing-by-Kathryn-Morgan-Parry.pdf
    • http://cefasfese.4pu.com/4738731734736737/Midnight-Clear-Includes-Morgan-s-Mercenaries-18-by-

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