Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba71ee06de4d777…

MALICIOUS

PDF

12.8 KB Created: 2019-04-30 19:00:49 +01:00 Authoring application: mPDF 5.7
MD5: de6867767ffec6156abc8f2fad4c16a1 SHA-1: 0ed1ed555c37274d4b038643e09cc36030346fbe SHA-256: 1ba71ee06de4d777aad9f4a23016643b3228b6d19d2459892b5a037714a8b6fe
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the ML detection strongly suggest a malicious intent, likely to lure users to potentially harmful content hosted on loaminoo.linkpc.net.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8905

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://loaminoo.linkpc.net/3097092090091093/After-Always-by-Barbara-J-Hancock.pdf
    • http://loaminoo.linkpc.net/4097091090098091/Darkening-Around-Me-by-Barbara-J-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095095092090/Jen-Hancock-s-Handy-Humanism-Handbook-by-Jennifer-Hancock.pdf
    • http://loaminoo.linkpc.net/6099095099092098/Reminiscences-of-Winfield-Scott-Hancock-by-A-R-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095095097091/Hancock-On-Hancock-by-Michael-Doyle.pdf
    • http://loaminoo.linkpc.net/1090098095092096092/The-Divine-Spark-A-Graham-Hancock-Reader-by-Graham-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095093091095/Hancock-by-Freddie-Hancock.pdf
    • http://loaminoo.linkpc.net/1097099096095094/Kept-in-the-Dark-by-Penny-Hancock.pdf
    • http://loaminoo.linkpc.net/5097095097099/The-Enclave-by-Karen-Hancock.pdf
    • http://loaminoo.linkpc.net/6094097098094097/Of-Sentimental-Value-by-Fumi-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095096091091/Love-in-the-Lakes-by-Penny-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095095092098/A-Love-for-Life-by-Penny-Hancock.pdf
    • http://loaminoo.linkpc.net/3099093096095095/The-Mars-Mystery-by-Graham-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095095095099/Tony-Hancock-by-Philip-Oakes.pdf
    • http://loaminoo.linkpc.net/1090098095095096095/Just-Good-Friends-by-Penny-Hancock.pdf
    • http://loaminoo.linkpc.net/8091092090099096/Tabasco-the-Saucy-Raccoon-by-Lyn-Hancock.pdf
    • http://loaminoo.linkpc.net/3099092091094092/Roof-by-John-Gregory-Hancock.pdf
    • http://loaminoo.linkpc.net/2097095098094090/Three-Magic-Tales-by-John-Gregory-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095096090098/English-Pronunciation-in-Use-Intermediate-by-Mark-Hancock.pdf
    • http://loaminoo.linkpc.net/3098094096092098/Forbidden-Love-Wolf-Hunt-1-by-Natalie-Hancock.pdf
    • http://loaminoo.linkpc.net/1090098095095096095/Just-Good-Fr

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