Malicious PDF — malware analysis report

Static analysis result for SHA-256 b415b04e69989731…

MALICIOUS

PDF

16.6 KB Created: 2019-04-30 04:36:00 +01:00 Authoring application: mPDF 5.7
MD5: d10bb19454ab1dc71fadd20d5bcf7d93 SHA-1: 3f27df574a5426f5557b201131718069689e43ed SHA-256: b415b04e69989731d1798d431788bfd4ae3d9963cbe8d7692984a97c35094216
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a link farm. While the document body is heavily obfuscated, the heuristic firings strongly suggest the PDF's primary purpose is to host these external links. The ML classifier also flagged this PDF as malicious with high confidence. 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://loaminoo.linkpc.net/5093092095091094/The-Beau-Monde-Fashionable-Society-in-Georgian-London-by-Hannah-Greig.pdf
    • http://loaminoo.linkpc.net/2099091093097098/Lady-Amelia-s-Mess-and-a-Half-Beau-Monde-2-by-Samantha-Grace.pdf
    • http://loaminoo.linkpc.net/2099091093098090/Miss-Hillary-Schools-a-Scoundrel-Beau-Monde-1-by-Samantha-Grace.pdf
    • http://loaminoo.linkpc.net/3092093099094093/The-Grim-Almanac-of-Georgian-London-by-Graham-Jackson.pdf
    • http://loaminoo.linkpc.net/5093092094099097/The-Foreign-Legion-Omnibus-Beau-Geste-Beau-Sabreur-and-Beau-Ideal-by-P-C-Wren.pdf
    • http://loaminoo.linkpc.net/8092098099093096/How-Beau-the-Cat-Learned-French-Comment-Beau-Le-Chat-a-Appris-Le-Fran-ais-A-Bilingual-Book-by-Lily-Summer.pdf
    • http://loaminoo.linkpc.net/3092094093099090/Walking-London-by-National-Geographic-Society.pdf
    • http://loaminoo.linkpc.net/1090093091093094096/The-Bespokist-Society-Guide-to-London-by-Jeremy-Liebster.pdf
    • http://loaminoo.linkpc.net/4097094090093095/On-the-Missionary-Trail-A-Journey-through-Polynesia-Asia-and-Africa-with-the-London-Missionary-Society-by-Tom-Hiney.pdf
    • http://loaminoo.linkpc.net/1093099093090098/In-Another-Light-by-Andrew-Greig.pdf
    • http://loaminoo.linkpc.net/7091098092094094/Casanova-by-David-Greig.pdf
    • http://loaminoo.linkpc.net/3093090096096096/Electric-Brae-by-Andrew-Greig.pdf
    • http://loaminoo.linkpc.net/1090094099090099/This-Green-Hell-Alex-Hunter-3-by-Greig-Beck.pdf
    • http://loaminoo.linkpc.net/4093095090098091/Death-by-Shampoo-A-Very-Fashionable-Cozy-Mystery-1-by-Diane-Keen.pdf
    • http://loaminoo.linkpc.net/1090091097097098/Fashionable-Nonsense-Postmodern-Intellectuals-Abuse-of-Science-by-Alan-Sokal.pdf
    • http://loaminoo.linkpc.net/7094092093097098/Mrs-Harry-St-John-A-Realistic-Novel-of-Boston-Fashionable-Life-by-Roman-Ivanovitch-Zubof.pdf
    • http://loaminoo.linkpc.net/4097091092099095/Fashionable-Food-Seven-Decades-of-Food-Fads-by-Sylvia-Lovegren.pdf
    • http://loaminoo.linkpc.net/3099090093091097/Ask-For-It-Georgian-1-by-Sylvia-Day.pdf
    • http://loaminoo.linkpc.net/2090097090098/Ask-For-It-Georgian-1-by-Sylvia-Day.pdf
    • http://loaminoo.linkpc.net/3093095099093093/Ask-for-It-Georgian-1-by-Sylvia-Day.pdf
    • http://loaminoo.linkpc.net/30920940930

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