Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8ec524411ab42e9…

MALICIOUS

PDF

14.1 KB Created: 2019-05-03 05:34:40 +01:00 Authoring application: mPDF 5.7
MD5: bac2a552756c620ed489d725a723422f SHA-1: 0029fd568fe5b1a41fc6647cd61ce54ade7bde3d SHA-256: c8ec524411ab42e942472b14a4870c411397c5aeff938be78701c509d88c8b8f
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While the document body is unreadable, the presence of numerous links to external PDFs suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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://cefasfese.4pu.com/9730730736731/Tree-and-Leaf-by-J-R-R-Tolkien.pdf
    • http://cefasfese.4pu.com/4731735739730735/Red-Leaf-Yellow-Leaf-by-Lois-Ehlert.pdf
    • http://cefasfese.4pu.com/1739730732738735/The-Tree-Lady-The-True-Story-of-How-One-Tree-Loving-Woman-Changed-a-City-Forever-by-H-Joseph-Hopkins.pdf
    • http://cefasfese.4pu.com/8731735735735/The-Tolkien-Reader-by-J-R-R-Tolkien.pdf
    • http://cefasfese.4pu.com/6736735738731733/Pictures-by-J-R-R-Tolkien-by-J-R-R-Tolkien.pdf
    • http://cefasfese.4pu.com/4738731736734732/Boy-Who-Would-Not-Go-to-School-by-Munro-Leaf.pdf
    • http://cefasfese.4pu.com/4733734731731735/Manners-Can-Be-Fun-by-Munro-Leaf.pdf
    • http://cefasfese.4pu.com/1731732735730738739/How-to-Behave-and-Why-by-Munro-Leaf.pdf
    • http://cefasfese.4pu.com/5733733733730730/Trembling-Leaf-a-novel-by-T-L-Kole.pdf
    • http://cefasfese.4pu.com/4730733731734732/Manners-Can-Be-Fun-by-Munro-Leaf.pdf
    • http://cefasfese.4pu.com/1737738736733737/The-Little-Leaf-by-Adam-B-Shaeffer.pdf
    • http://cefasfese.4pu.com/4733731739730731/The-Leaf-Catcher-by-Dax-M-Tucker.pdf
    • http://cefasfese.4pu.com/2730730735739734/Bitter-Bite-by-Erin-M-Leaf.pdf
    • http://cefasfese.4pu.com/1739730734734733/The-Magic-Leaf-by-Mary-Feliciani.pdf
    • http://cefasfese.4pu.com/3737731732736739/Captive-Fire-by-Erin-M-Leaf.pdf
    • http://cefasfese.4pu.com/3736738730735735/The-First-Time-is-the-Sweetest-by-Erin-M-Leaf.pdf
    • http://cefasfese.4pu.com/8732730735735733/Ferdinand-the-Bull-by-Munro-Leaf.pdf
    • http://cefasfese.4pu.com/1734730733730736/The-Folded-Leaf-by-William-Maxwell.pdf
    • http://cefasfese.4pu.com/9739734737739734/When-The-Leaf-Blew-In-by-Steve-Metzger.pdf
    • http://cefasfese.4pu.com/7735733731738732/Leaf-Jumpers-by-Carole-Gerber.pdf
    • http://cefasfese.4pu.com/473073373173

Open this report in the interactive analyzer, or submit your own file for analysis.