Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4ac6d1148a2d1e…

MALICIOUS

PDF

15.2 KB Created: 2019-04-30 02:10:17 +01:00 Authoring application: mPDF 5.7
MD5: 105a7ea23c2ac726d3b604096589b82a SHA-1: cb64054926218bba3c53956d90c30397baa937a5 SHA-256: fc4ac6d1148a2d1e687f9f696108325867ba2cc339963241dcbaebfc07973e02
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, all hosted on the dynamic DNS domain 'loaminoo.linkpc.net'. This pattern is indicative of SEO poisoning or a link farm designed to drive traffic to potentially malicious or unwanted content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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://loaminoo.linkpc.net/1091096099097095092/Kristy-in-Charge-The-Baby-Sitters-Club-122-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1098091092099091/Kristy-s-Big-Day-The-Baby-Sitters-Club-6-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099096097096/Kristy-for-President-The-Baby-Sitters-Club-53-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099097095096/Kristy-and-the-Worst-Kid-Ever-The-Baby-Sitters-Club-62-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/4099098096094090/Kristy-and-the-Secret-of-Susan-The-Baby-Sitters-Club-32-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/2090098093096096/Kristy-s-Great-Idea-The-Baby-Sitters-Club-1-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099096098091/Kristy-and-the-Dirty-Diapers-The-Baby-Sitters-Club-89-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099098099097/Kristy-and-the-Cat-Burglar-Baby-Sitters-Club-Mystery-36-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1090094096099097095/Le-Club-des-Baby-Sitters-Tome-1-L-id-e-g-niale-de-Kristy-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099097095099/Kristy-and-the-Missing-Child-Baby-Sitters-Club-Mystery-4-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/2090098096093090/Baby-Sitters-Beware-Baby-Sitters-Club-Super-Mystery-2-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/8091093099098094/Stacey-s-Lie-The-Baby-Sitters-Club-76-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/3098099096093094/The-Summer-Before-The-Baby-Sitters-Club-0-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/8091093099098093/Stacey-vs-the-BSC-The-Baby-Sitters-Club-83-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/8091094090096099/Stacey-s-Ex-Best-Friend-The-Baby-Sitters-Club-51-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/4091098092090098/Dawn-and-the-Impossible-Three-The-Baby-Sitters-Club-5-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/4096099092095094/Claudia-and-the-Sad-Good-bye-The-Baby-Sitters-Club-26-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/7093098091096092/Claudia-and-the-Bad-Joke-The-Baby-Sitters-Club-19-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/4095091093094097/Stacey-s-Emergency-The-Baby-Sitters-Club-43-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/8091094090090095/Stacey-and-the-Cheerleaders-The-Baby-Sitters-Club-70-by-Ann-M-Martin.pdf
    • http://loaminoo.linkpc.net/1091096099097095099/Kristy-and-the-Missing-Child-Baby-Sitters-Club-Mystery-4-by-Ann-M-Martin

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