Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5bebed50ccfd8a…

MALICIOUS

PDF

19.0 KB Created: 2020-03-20 13:08:28 +00:00 Authoring application: mPDF 5.7
MD5: 10c61e73e8439d73cc19373b15d5e321 SHA-1: 210cc26aacea13a41bc0bdbe5941d1d0cad776fe SHA-256: 4c5bebed50ccfd8a6106b9f3c3619b910584d1e0a6b9475b6f9694932eb2c6cb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDFs hosted on the domain lwoscmobook.myhome.cx. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to specific content, potentially for malicious purposes. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://lwoscmobook.myhome.cx/152485245524052485241/Don-t-Stick-Sticks-Up-Your-Nose-Don-t-Stuff-Stuff-In-Your-Ears-by-Jerald-S-Altman.pdf
    • http://lwoscmobook.myhome.cx/452495248524652475249/The-Write-Stuff-Write-Stuff-1-by-Tiffany-King.pdf
    • http://lwoscmobook.myhome.cx/1524152485241524352435246/Fire-Stick-The-Ultimate-Guide-With-Instructions-To-Unlock-The-True-Potential-Of-Your-Fire-Stick-Fire-Stick-Book-Fire-Stick-Remote-Streaming-Devices-TV-Stick-User-Guide-How-To-Use-Fire-Stick-by-Jamy-Jackson.pdf
    • http://lwoscmobook.myhome.cx/252475241524252405247/Lines-and-Stuff-by-Emm-Roy.pdf
    • http://lwoscmobook.myhome.cx/25242524052435245/The-Right-Stuff-by-Tom-Wolfe.pdf
    • http://lwoscmobook.myhome.cx/352445247524252435241/Stuff-of-Legends-by-Ian-Gibson.pdf
    • http://lwoscmobook.myhome.cx/252475243524952415246/Spy-Stuff-by-Matthew-J-Metzger.pdf
    • http://lwoscmobook.myhome.cx/252495248524052435244/Stuff-I-ve-Been-Reading-by-Nick-Hornby.pdf
    • http://lwoscmobook.myhome.cx/352435240524852475245/So-You-Want-to-Get-Gay-Married-Stuff-You-Need-to-Know-Before-Saying-I-Do-by-Jared-Milrad.pdf
    • http://lwoscmobook.myhome.cx/252405248524452435246/New-School-amp-Other-Stuff-The-Wig-2-by-Renata-Suerth.pdf
    • http://lwoscmobook.myhome.cx/452415241524052455249/The-Naughty-Stuff-by-Ella-Dominguez.pdf
    • http://lwoscmobook.myhome.cx/452455244524452465243/To-Feel-Stuff-by-Andrea-Seigel.pdf
    • http://lwoscmobook.myhome.cx/152465246524452465247/Pass-the-Hot-Stuff-by-Dana-Page.pdf
    • http://lwoscmobook.myhome.cx/75246524652485243/Stuff-Dreams-Are-Made-of-by-Don-Bruns.pdf
    • http://lwoscmobook.myhome.cx/152475242524652405247/Odd-Stuff-The-Odd-Series-1-by-Virginia-Nelson.pdf
    • http://lwoscmobook.myhome.cx/952475249524352465244/Huff-and-Puff-Have-Too-Much-Stuff-by-Tish-Rabe.pdf
    • http://lwoscmobook.myhome.cx/252455242524552415247/I-Used-to-Know-That-Stuff-You-Forgot-from-School-by-Caroline-Taggart.pdf
    • http://lwoscmobook.myhome.cx/352435247524552425248/The-Stuff-of-Legend-Omnibus-One-by-Mike-Raicht.pdf
    • http://lwoscmobook.myhome.cx/25244524252475244/Dog-Butts-and-Love-And-Stuff-Like-That-And-Cats-by-Jim-Benton.pdf
    • http://lwoscmobook.myhome.cx/1524152435248524352415247/Cool-Stuff-for-Family-amp-Friends-by-Pam-Scheunemann.pdf
    • http://lwoscmobook.myhome.cx/252495248524052435244/Stuff-I-ve-Been-Reading-by-Nick-H

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