Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd797af47d5df6b…

MALICIOUS

PDF

13.9 KB Created: 2019-04-30 02:21:21 +01:00 Authoring application: mPDF 5.7
MD5: 297e81f8cb4b75da74759ec01dba284a SHA-1: b810adbf5b62b38f31623c3082efd14dba6313b0 SHA-256: 4fd797af47d5df6b087bf8a7e5288c46b00ad7a5a08612b86ff02e191ac8acd2
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, hosted on a dynamic DNS domain. This behavior is indicative of a link farm or a redirection scheme designed to lead users to potentially malicious content. 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 0.9102

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/1091095094099093096/Las-Historias-de-la-Tortuga-Filomena-The-Stories-of-Filomena-the-Turtle-by-Juliana-Holguin.pdf
    • http://loaminoo.linkpc.net/1091096097094091090/Pugs-in-a-Bug-with-Read-Along-cd-by-Carolyn-Crimi.pdf
    • http://loaminoo.linkpc.net/1091095094098093097/Red-House-Filomena-Buscarsela-4-by-K-J-A-Wishnia.pdf
    • http://loaminoo.linkpc.net/5091091098093090/A-Cova-do-Lagarto-by-Filomena-Marona-Beja.pdf
    • http://loaminoo.linkpc.net/1091095094099091095/The-Glass-Factory-A-Filomena-Buscarsela-Mystery-by-Ken-Wishnia.pdf
    • http://loaminoo.linkpc.net/1091095095090092090/GAME-ON---JOGOS-ELETRONICOS-NA-ESCOLA-E-NA-VIDA-DA-GERA-O-by-MOITA-FILOMENA.pdf
    • http://loaminoo.linkpc.net/3098094092099094/The-Last-of-Days-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/3097094092094094/Daughter-of-the-Sea-by-Berlie-Doherty.pdf
    • http://loaminoo.linkpc.net/2092095099094098/Scent-of-the-Soul-by-Julie-Doherty.pdf
    • http://loaminoo.linkpc.net/1097092091094093/Dove-Amongst-the-Hawks-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/1094099096099090/The-Mask-of-Ra-Amerotke-1-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/6093094093092092/Adeline-and-Edward-by-Suzanne-Doherty.pdf
    • http://loaminoo.linkpc.net/4093099098096094/Fairy-Tales-by-Berlie-Doherty.pdf
    • http://loaminoo.linkpc.net/1094092093091092/The-Truth-Area-51-7-by-Robert-Doherty.pdf
    • http://loaminoo.linkpc.net/1095090090090095/The-Girl-Who-Saw-Lions-by-Berlie-Doherty.pdf
    • http://loaminoo.linkpc.net/1095092090099093/The-Death-of-a-King-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/2094096093097091/The-Cup-of-Ghosts-Mathilde-of-Westminster-1-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/5090092094095095/The-Anubis-Slayings-Amerotke-3-by-Paul-Doherty.pdf
    • http://loaminoo.linkpc.net/1090093098095098097/Dancing-with-Statues-by-Caroline-Doherty-de-Novoa.pdf
    • http://loaminoo.linkpc.net/3092092093097094/Nightshade-Hugh-Corbett-16-by-Paul-Doherty.pdf

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