Malicious PDF — malware analysis report

Static analysis result for SHA-256 186895d9b757da97…

MALICIOUS

PDF

16.4 KB Created: 2019-05-05 16:46:13 +01:00 Authoring application: mPDF 5.7
MD5: 3c7f3f080c3c5c65542c79b0235e392b SHA-1: d3fd2b3435428ca99420b7c9777fcd80cf6c21b1 SHA-256: 186895d9b757da970a58b1ab4a76be9617fd000dd56385eac5536b130008c123
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded links suggest a watering hole or content distribution attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/2091099092098091/Just-Another-Girl-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/4094091095097092/Prom-amp-Prejudice-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/5099097098098090/Beste-Freunde-k-sst-man-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/6093091097096093/Two-of-Us-The-Lonely-Hearts-Club-1-2-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/1098098/We-Can-Work-It-Out-The-Lonely-Hearts-Club-2-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/1090098099099096093/A-Hard-Day-s-Night-The-Lonely-Hearts-Club-1-1-by-Elizabeth-Eulberg.pdf
    • http://loaminoo.linkpc.net/2095096092093098/The-Temptation-of-Elizabeth-Tudor-Elizabeth-I-Thomas-Seymour-and-the-Making-of-a-Virgin-Queen-by-Elizabeth-Norton.pdf
    • http://loaminoo.linkpc.net/2097096094099096/Friends-Is-Friends-by-Greg-Cook.pdf
    • http://loaminoo.linkpc.net/1094097090093094/Let-s-Be-Just-Friends-Just-Friends-1-by-Camilla-Isley.pdf
    • http://loaminoo.linkpc.net/1092090092097097/Friends-Like-These-Friends-Like-These-1-by-Hannah-Ellis.pdf
    • http://loaminoo.linkpc.net/4090098095/Just-Friends-Friends-1-by-Monica-Murphy.pdf
    • http://loaminoo.linkpc.net/9093092092095090/DC-Super-Friends-Volume-2-Calling-All-Super-Friends-by-Sholly-Fisch.pdf
    • http://loaminoo.linkpc.net/2099093096094093/Friends-With-Multiple-Benefits-Friends-with-Benefits-6-by-Luke-Young.pdf
    • http://loaminoo.linkpc.net/9093092093090097/DC-Super-Friends-Wanted-The-Super-Friends-by-Sholly-Fisch.pdf
    • http://loaminoo.linkpc.net/2099094090097095/Friends-with-Full-Benefits-Friends-with-Benefits-2-by-Luke-Young.pdf
    • http://loaminoo.linkpc.net/8096092098099098/Elizabeth-and-her-German-Garden-The-Solitary-Summer-The-Enchanted-April-by-Elizabeth-von-Arnim.pdf
    • http://loaminoo.linkpc.net/7093091099098/Elizabeth-and-the-Royal-Pony-Based-on-a-True-Story-of-Elizabeth-I-of-England-by-Joan-Holub.pdf
    • http://loaminoo.linkpc.net/4092097091091096/Queen-Elizabeth-s-Daughter-A-Novel-of-Elizabeth-I-by-Anne-Clinard-Barnhill.pdf
    • http://loaminoo.linkpc.net/3093099095098091/Elizabeth-the-Queen-The-Lady-Elizabeth-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1097090090091099/Elizabeth-s-Bondage-Elizabeth-s-Sex-Stories-1-by-Nikki-Sex.pdf