Malicious PDF — malware analysis report

Static analysis result for SHA-256 d788e6a221c3753a…

MALICIOUS

PDF

19.6 KB Created: 2019-05-02 05:49:24 +01:00 Authoring application: mPDF 5.7
MD5: c848b2d7e3c21bac366e2b9ba12a8b57 SHA-1: d8a19c584b900451b3f2e97978adfec4bb62f115 SHA-256: d788e6a221c3753a374511bb35abd1f213d94b5f369640ef4070d7b5b4e7e304
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to a domain that hosts numerous book-themed links. While the ML classifier strongly suggests maliciousness, the specific intent beyond link distribution is unclear due to the lack of executable scripts and the obfuscated document body. The primary attack pattern appears to be a link farm, potentially for SEO manipulation or to serve as a distribution point for further malicious content.

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://xiixmcuin.linkpc.net/2206200209204/Wizards-Magical-Tales-From-the-Masters-of-Modern-Fantasy-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/2206206209205200/Dark-Alchemy-Magical-Tales-From-Masters-Of-Modern-Fantasy-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/2200203207204208/The-Golden-Horse-amp-Other-Fairy-Tales-Modern-Fairy-Tales-for-the-Magical-Child-by-StarFields.pdf
    • http://xiixmcuin.linkpc.net/1206204202207206/Tales-Before-Tolkien-The-Roots-of-Modern-Fantasy-by-Douglas-A-Anderson.pdf
    • http://xiixmcuin.linkpc.net/3201203206202208/The-Mammoth-Book-of-Sorcerers-Tales-The-Ultimate-Collection-of-Magical-Fantasy-from-Tom-Holt-Ursula-K-LeGuin-Michael-Moorcock-Peter-Crowther-Louise-Cooper-and-many-more-by-Mike-Ashley.pdf
    • http://xiixmcuin.linkpc.net/4204204205207207/Jack-O--Spec-Tales-of-Halloween-and-Fantasy-by-Karen-A-Romanko.pdf
    • http://xiixmcuin.linkpc.net/1201202208201203/Wizards-of-Waverly-Place-The-Movie-Magical-Mistake-by-Lara-Bergen.pdf
    • http://xiixmcuin.linkpc.net/4203208208204201/The-Outspoken-Princess-and-The-Gentle-Knight-A-Treasury-of-Modern-Fairy-Tales-by-Jack-D-Zipes.pdf
    • http://xiixmcuin.linkpc.net/3204203208205205/Giants-Magical-Worlds-of-Fantasy-5-by-Isaac-Asimov.pdf
    • http://xiixmcuin.linkpc.net/8208200204202207/Nanotech-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/8208200204202208/Unicorns-2-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/2209205204202208/Dragons-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/8208200204207204/Dinosaurs-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/8208200204206209/Futures-Past-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/6206203204205207/Wing-of-Fairy-Magical-Ingredients-Fantasy-Journal-3-by-Angel-Leya.pdf
    • http://xiixmcuin.linkpc.net/6206203204206201/Scale-of-Mermaid-Magical-Ingredients-Fantasy-Journal-4-by-Angel-Leya.pdf
    • http://xiixmcuin.linkpc.net/2203207201209202/Bota-E-Fantazise-The-World-Of-Fantasy-Chapter-02---Where-Are-You-Magical-Bird-by-Stela-Canga.pdf
    • http://xiixmcuin.linkpc.net/1200209209207209206/The-Hashemites-in-the-Modern-Arab-World-Essays-in-Honour-of-the-Late-Professor-Uriel-Dann-by-Asher-Susser.pdf
    • http://xiixmcuin.linkpc.net/9202200209208/Dreaming-Again-Thirty-five-New-Stories-Celebrating-the-Wild-Side-of-Australian-Fiction-by-Jack-Dann.pdf
    • http://xiixmcuin.linkpc.net/7201205209201209/Stock-Market-Wizards-Interviews-with-America-s-Top-Stock-Traders-by-Jack-D-Schwager.pdf
    • http://xiixmcuin.linkpc.net/4204204205207207/Jack-O--Spec-Tales-of-Halloween-and-Fantasy-