Malicious PDF — malware analysis report

Static analysis result for SHA-256 3787485b754495c3…

MALICIOUS

PDF

23.5 KB Created: 2020-03-18 16:41:16 +00:00 Authoring application: mPDF 5.7
MD5: 7bb4a24be6b29e4ac9951fc99fb1ed52 SHA-1: 633eaa94e0be6bbe286a02bbcd90b9aafe185164 SHA-256: 3787485b754495c3659c7ca257d8ef3563e586a8badd072fbd76baa331573cbc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. These URLs point to various book titles, suggesting a potential SEO manipulation or content distribution scheme. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample, but the sheer volume of external links suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/3aa6aa7aa4aa2aa7/Post-Modern-Pilgrims-First-Century-Passion-for-the-21st-Century-World-by-Leonard-Sweet.pdf
    • http://eascasas.myhome.cx/4aa4aa7aa5aa6aa7/Soulsalsa-17-Surprising-Steps-for-Godly-Living-in-the-21st-Century-by-Leonard-Sweet.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa9aa2aa7aa8/Roget-s-21st-Century-Thesaurus-21st-Century-Reference-by-Barbara-Ann-Kipfer.pdf
    • http://eascasas.myhome.cx/2aa7aa7aa8aa3aa8/Opium-Fiend-A-21st-Century-Slave-to-a-19th-Century-Addiction-by-Steven-Martin.pdf
    • http://eascasas.myhome.cx/2aa9aa6aa3aa0aa7/Opium-Fiend-A-21st-Century-Slave-to-a-19th-Century-Addiction-by-Steven-Martin.pdf
    • http://eascasas.myhome.cx/9aa9aa6aa8aa2/Waging-Nonviolent-Struggle-20th-Century-Practice-and-21st-Century-Potential-by-Gene-Sharp.pdf
    • http://eascasas.myhome.cx/6aa9aa3aa4aa6aa5/Mannerism-in-Arabic-Poetry-A-Structural-Analysis-of-Selected-Texts-3rd-Century-Ah-9th-Century-Ad-5th-Century-Ah-11th-Century-Ad-by-Stefan-Sperl.pdf
    • http://eascasas.myhome.cx/6aa1aa0aa7aa1aa7/The-Vertical-Farm-Feeding-the-World-in-the-21st-Century-by-Dickson-D-Despommier.pdf
    • http://eascasas.myhome.cx/2aa0aa4aa8aa7aa6/A-World-Perspective-Through-21st-Century-Eyes---The-Impact-of-Science-on-Society-by-R-K-Koslowsky.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa9aa3aa1aa6/State-Building-Governance-and-World-Order-in-the-21st-Century-by-Francis-Fukuyama.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa9aa4aa7aa2/Cutting-Edge-Advertising-How-to-Create-the-World-s-Best-for-Brands-in-the-21st-Century-by-Jim-Aitchison.pdf
    • http://eascasas.myhome.cx/4aa0aa1aa3aa6aa7/The-Modern-World-System-I-Capitalist-Agriculture-and-the-Origins-of-the-European-World-Economy-in-the-Sixteenth-Century-by-Immanuel-Wallerstein.pdf
    • http://eascasas.myhome.cx/1aa0aa7aa4aa2aa9aa1/Old-Assumptions-New-Realities-Ensuring-Economic-Security-for-Working-Families-in-the-21st-Century-Ensuring-Economic-Security-for-Working-Families-in-the-21st-Century-by-Robert-D-Plotnick.pdf
    • http://eascasas.myhome.cx/6aa6aa9aa9aa4aa4/9th-Century-in-International-Relations-9th-Century-Conflicts-9th-Century-Treaties-Treaty-of-Verdun-Battle-of-Fontenoy-Byzantine-arab-Wars-by-Books-LLC.pdf
    • http://eascasas.myhome.cx/6aa2aa9aa0aa9aa1/Graphic-Design-and-Architecture-A-20th-Century-History-A-Guide-to-Type-Image-Symbol-and-Visual-Storytelling-in-the-Modern-World-by-Richard-Poulin.pdf
    • http://eascasas.myhome.cx/6aa6aa0aa6aa1/21st-Century-American-by-Byron-Goines.pdf
    • http://eascasas.myhome.cx/9aa3aa1aa5aa3aa4/The-Tao-Te-Ching-For-The-21st-Century-by-Stanley-F-Bronstein.pdf
    • http://eascasas.myhome.cx/4aa9aa1aa2aa7aa4/A-21st-Century-Courtesan-by-Eden-Bradley.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa9aa2aa7aa6/Business-for-the-21st-Century-by-Steven-J-Skinner.pdf
    • http://eascasas.myhome.cx/1aa0aa1aa9aa3aa1aa9/How-to-Be-an-Indian-in-the-21st-Century-by-Louis-V-Clark.pdf
    • http://eascasas.myhome.cx/6aa9aa3aa4aa6aa5/Mannerism-i