Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f21128aabf3a41…

MALICIOUS

PDF

21.2 KB Created: 2020-03-16 04:44:58 +00:00 Authoring application: mPDF 5.7
MD5: 86e8f513b0840020744a3c7efbce6333 SHA-1: 96a486ab3113ec7f2466512d19e1d934992ade39 SHA-256: e8f21128aabf3a4105898d36a32e9fbf305c8373336aa665975e39dea51ad325
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs are likely used to redirect users to malicious websites or for SEO spamming purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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://eascasas.myhome.cx/2aa0aa0aa2aa2aa8/The-Mystery-of-the-Whistling-Caves-Adventure-Island-1-by-Helen-Moss.pdf
    • http://eascasas.myhome.cx/2aa9aa6aa8aa3aa3/The-Island-of-Adventure-And-The-Castle-of-Adventure-Two-Great-Adventures-by-Enid-Blyton.pdf
    • http://eascasas.myhome.cx/2aa0aa3aa6aa2aa4/The-Selkie-Sorceress-Seal-Island-Trilogy-Book-3-by-Sophie-Moss.pdf
    • http://eascasas.myhome.cx/3aa1aa4aa6aa5aa2/The-Mystery-on-Lighthouse-Island-The-Fabulous-Four-Mystery-Series-1-by-Robin-Rowles.pdf
    • http://eascasas.myhome.cx/1aa1aa8aa2aa2aa7aa6/Brazilian-Gold-Mine-Mystery-A-Biff-Brewster-Mystery-Adventure-by-Andy-Adams.pdf
    • http://eascasas.myhome.cx/1aa1aa8aa8aa5aa7/Bill-Moss-Fabric-Artist-and-Designer-by-Marilyn-Moss.pdf
    • http://eascasas.myhome.cx/1aa0aa8aa3aa5aa6/Next-Comes-Love-An-Island-to-Remember-2-by-Helen-Brenna.pdf
    • http://eascasas.myhome.cx/2aa3aa2aa9aa0aa6/First-Come-Twins-An-Island-to-Remember-1-by-Helen-Brenna.pdf
    • http://eascasas.myhome.cx/2aa2aa7aa6aa1aa2/Adventure-on-Whalebone-Island-by-M-A-Wilson.pdf
    • http://eascasas.myhome.cx/2aa5aa2aa9aa5/Redemption-at-Mirabelle-An-Island-to-Remember-7-by-Helen-Brenna.pdf
    • http://eascasas.myhome.cx/4aa2aa9aa6aa4aa5/Pro-Se-Presents-3-The-Hunter-Island-Adventure-by-Wayne-Reinagel.pdf
    • http://eascasas.myhome.cx/4aa9aa9aa1aa1aa1/Sugarcane-Island-Choose-Your-Own-Adventure-62-by-Edward-Packard.pdf
    • http://eascasas.myhome.cx/2aa4aa5aa1aa4aa4/Shipwrecked-on-the-Island-of-the-She-Gods-A-South-Pacific-Trans-Sex-Adventure-by-Lacey-Noonan.pdf
    • http://eascasas.myhome.cx/3aa8aa4aa1aa7aa7/Past-the-Last-Island--Revised-Edition-A-Misfits-and-Heroes-Adventure-by-Kathleen-Rollins.pdf
    • http://eascasas.myhome.cx/2aa6aa5aa5aa8aa9/The-Astonishing-Mistakes-of-Dahlia-Moss-Dahlia-Moss-Mysteries-2-by-Max-Wirestone.pdf
    • http://eascasas.myhome.cx/4aa4aa3aa7aa3aa2/Island-of-Hope-Island-of-Tears-The-Story-of-Those-Who-Entered-the-New-World-through-Ellis-Island-In-Their-Own-Words-by-David-M-Brownstone.pdf
    • http://eascasas.myhome.cx/8aa1aa1aa3aa2aa7/A-Mystery-of-Somber-Bay-Island-by-John-V-Konior.pdf
    • http://eascasas.myhome.cx/1aa8aa2aa8aa4/Matinicus----An-Island-Mystery-by-Darcy-Scott.pdf
    • http://eascasas.myhome.cx/9aa7aa6aa5aa4aa2/Kultur-Island-Homosexualitat-in-Island-Islandische-Kuche-Islandische-Musik-Islandische-Sprache-Islandischer-Film-Kunst-Island-Museum-in-Island-Tsatsiki---Tintenfische-Und-Erste-Kusse-Altislandische-Sprache-by-Source-Wikipedia.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa0aa0aa5aa9/Professor-Beetovens-Second-Adventure-Penguin-Island-The-Adventures-of-Professor-Beetoven-and-Friends-Book-2-by-James-A-Rumpf.pdf
    • http://eascasas.myhome.cx/4aa2aa9aa6aa4